PCB Piezotronics accelerome制造精度ters to measure vibration, shock, acceleration, and motion for monitoring, control, and testing applications. ICP®, PE, MEMS and Capacitance sensing technologies are used to fulfill a wide assortment of measurement requirements. Accelerometers are used by field test, in factory production and design as well as Research and Development organizations to acquire critical data. In addition to our precision miniature units, rugged accelerometers and vibration sensors for industrial machinery vibration monitoring are offered by our IMI Sensors division.
PCB's single axis and three axis (triaxial) accelerometer configuration parameters include sensitivity, temperature, frequency response, amplitude response, form factor and lead wire grounding. Accelerometers are critical for evaluating proper performance of equipment or structures. Such applications usually require proof of calibration of the entire measurement system from the sensor through to the final output. PCB calibrates all products traceable to NIST and includes a calibration certificate with each sensor shipped.
The most commonly used technology is ICP® accelerometers. These sensors require ICP® Power supplied. Most modern data acquisition, digital control, and portable data systems provide ICP sensor power. ICP Sensors can be referred to as Voltage Mode output sensors. Our PE sensors can be referred to as Charge Mode output sensors. Each directional axis measured requires one channel of the data system or signal conditioner.
Accelerometers can be referred to as accelerometer, accelerometers, accels or accel or the industrial community may refer to them as vib sensor or vib probe. Lifetime Warranty is standard with our Platinum Products offerings.
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Conventional accelerometers are designed to withstand moderate upper ambient temperature conditions. These are designed for continuous operation up to 250 to 275 F. At higher temperatures the conventional construction may effect solders, epoxies, internal wiring insulation and reduce the sensor sensitivity from the desired value resulting in lower output. Thus,an error results.
PCB® offers specially designed and tested ICP® accelerometers for conducting vibration and shock measurements under the demanding environmental conditions. These sensors combine proven quartz, and ceramic shear sensing technology with specialized, built-in microelectronic signal conditioning circuitry to achieve dependable operation in extreme temperatures and through repetitive temperature cycling. Laser-welded, hermetically sealed, lightweight titanium or stainless steel housings offer further protection from the environment.
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电压莫de (ICP type) sensors can only operate to a limited ambient temperature. The ICP sensors internal electronics is the limiting factor at high temperatures. Many test articles, such as gas turbines, steam turbines, jet engines, high power motors, exhaust systems and under the hood testing have high temperatures exceeding this types sensors temperature rating. In order to properly function at these higher temperatures a different sensor technology is needed. PCB®’s Charge Mode Output accelerometers utilize piezo-ceramic sensing elements to directly output an electrostatic charge signal that is proportional to applied acceleration. This type sensor is termed a PE style or charge mode style. These sensor can operate at extreme high temperatures.
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Conventional structural test data systems use few to several hundred sensors. Cables bundles can be complex and confusing resulting in setup errors. Sensors with TEDS (Transducer Electronic Data Sheet) allow for an internal sensor digital chip to store sensor information. This information contains descriptive identifiers that when connected to a TEDS compatible signal conditioner or data system, reads the descriptive information and automatically aligns the data system.
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Shock accelerometers are specifically designed to withstand and measure extreme, high-amplitude, short-duration, transient accelerations. Such accelerations characteristically exceed the 1000 g boundary imposed on typical accelerometer designs. Shock acceleration events may reach 100,000 g or more with pulse durations of less than 10 microseconds. The extremely fast transient and volatile nature of a shock event imposes special demands on the design of a shock accelerometer.
PCB® shock accelerometers represent extensive research in materials, assembly techniques, and testing techniques to ensure survivability and faithful representation of the shock event. An automated Hopkinson Bar Calibration Station is utilized to evaluate shock sensor performance by simulating actual, high amplitude measurement conditions. This investment allows PCB® to assess and improve upon individual sensor characteristics, such as zero shift, ringing, and non-linearity.
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Motion of a rigid body can be characterized within six degrees of freedom. Providing mechanical excitation to simulate this motion as may be encountered in the real world can entail a variety of test machines. There are various pound/force vibration shakers for structural testing. Regardless of the apparatus, the goal is always to ensure that the product under test can adequately perform, and reliably survive, in the environment in which it will be deployed, or to which it will be exposed during transport. PCB® accelerometers provide the measurement signals needed to control the vibratory input and to analyze the product’s reaction to such testing. Did the test achieve the acceleration amplitudes and frequencies desired? Did the product react in a consistent manner? Did any components or mounting techniques become altered? These are just a few of the questions that can be verified by analyzing the signals generated by PCB®accelerometers.
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High sensitivity ICP® accelerometers are specifically designed to enable the detection of ultra-low-level, low-frequency vibrations associated with very large structures, foundations, and earth tremors. These sensors typically possess exceptional measurement resolution as the result of its comparatively larger size, which furnishes a stronger output signal and a lower noise floor.
Both ceramic and quartz sensing elements are utilized in seismic accelerometer designs. Model 393C, with a quartz sensing element, offers the best low-frequency response in this series. Ceramic element styles with built-in, low-noise, signal conditioning circuitry offer the greatest measurement resolution. The model 393B31 leads the way, providing 1 µg rms broadband resolution.
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Structured with highly sensitive piezoceramic sensing elements, miniature Ceramic Shear ICP® Accelerometers have an excellent signal-to-noise ratio, high measurement resolution, and are ideal for conducting low-level vibration measurements. Due to their inherent higher sensitivity, a ceramic ICP® accelerometer can be assembled with a smaller mass than comparable quartz units, resulting in a sensor that is lighter in weight, has a higher frequency response, and has a lower noise floor.
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PCB® series 3711E, 3713E and 3741E MEMS DC response sensors are used to measure low frequency motion down to zero hertz. These accelerometers are used in applications such as structural monitoring, aerospace vibration testing, driveability and gravitational force measurements. Each series includes a full scale measurement range from ± 2g to ± 200g and features low spectral noise with high resolution.
PCB Piezotronics is introducing a new automotive crash accelerometer for high-G impact events. The new PCB® Series 3641 and 3651 sensors are a rugged and reliable drop-in replacement for other models on the market. PCB® offers high-quality crash sensors with a low cost-to-own and exceptional customer support. Our Models 3641 and 3651 Piezoresistive MEMS crash accelerometers are offered in both damped and undamped versions for High-G impact events. These models are designed for crash testing, anthropomorphic testing, sled testing and similar applications that take advantage of its low 1-gram mass, standard low transverse sensitivity and standard low zero G offset.
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Each PCB® Modally Tuned®, ICP® instrumented impact hammer features a rugged, force sensor that is integrated into the hammer’s striking surface.
“Modal Tuning” is a feature that ensures the structural characteristics of the hammer do not affect measurement results. This is accomplished by eliminating hammer resonances in the frequency range of interest from corrupting the test data, resulting in more accurate and consistent measurements.
力传感器服务提供一个测量of the amplitude and frequency content of the energy stimulus that is imparted to a test object. Accelerometers are used in conjunction with the hammer to provide a measurement of the object’s structural response due to the hammer blow. A variety of tips supplied with each hammer permit the energy content of the force impulse to be tailored to suit the requirements of the item under test.
Using multi-channel data acquisition and analysis software, the test engineer is able to ascertain a variety of mechanical properties leading to an understanding of an object’s structural behavioral characteristics. Items analyzed can include resonance detection, mode shapes, transfer characteristics, and structural health – such as crack and fatigue detection.
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Modern prepolarized microphones are designed with newer technology than traditional externally polarized microphones. Prepolarized microphones have many advantages over the externally polarized models. They use ICP® power circuitry invented for sensors by PCB®. By applying a polymer coating to the top of the backplate and embedding a charge on it, expensive 200V power supplies can be eliminated and 2-20 mA constant current supplies or signal conditioners can be used as the power source.
Prepolarized models are better suited for portable applications or those in high humidity environments. An added benefit is the interchangeability with other test equipment such as accelerometers or piezoelectric pressure sensors. This lets you use low cost coaxial cables with 10-32, SMB or BNC connectors. With a multiple channel power supply, you can perform your vibration and acoustic tests within the same set-up, saving both time and money.
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Prepolarized ICP® Array microphones are a cost-effective alternative to the higher end, class 1 test and measurement microphones. These value-priced array microphones are an excellent choice for large channel count applications and are suitable for sound measurements within the normal human hearing range.
Externally polarized microphones were the original standard for all test and measurement acoustic applications. This design utilizes a separate 200V power supply and special cables with 7 pin LEMO® connectors. Their simple design enables a large product offering. These microphones are commonly used to replace existing externally polarized microphones, or in cases where a prepolarized alternative is not available.
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Model 130A24 is a 1/2” (12mm) prepolarized microphone and preamplifier system with a replaceable water and dust resistant cover. This acoustically transparent cover provides an unobtrusive alternative to windscreens and a more consistent response than rubber protective covers.This array microphone is equipped with a rugged stainless steel grid cap similar to our high end condenser microphones.The 130A24 is an excellent choice for large channel array microphone applications, outdoor measurements, high humidity applications or harsh industrial settings where dust or oil splash is a concern.
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These microphones are used to make measurements in environments where operating temperatures can reach +250 ºF (+120 ºC). Typical high temperature applications include engine, manifold, exhaust, transfer path, and HVAC testing.
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These low profile microphones are used for measuring true surface pressure and noise. Its footprint allows noise measurements to be taken where traditional microphones will not fit. A water and dust resistant grid cap is ideal for dirty and rough environments. Typical applications include wind tunnel noise measurements, brake noise, acoustic fatigue analysis, and clear air turbulence (CAT) testing.
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For small, hard-to-reach areas and high temperature environments
The small profile Probe Microphone (Model 377B26) is used for acoustic measurements in small, hard-to-reach places and where precise placement is required in near-field testing within confined areas. This probe microphone is used in extremely high temperatures environments 1740?F (800?C).
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Low profile 0.050 diameter probe tip 164 dB maximum amplitude (3% distortion)
45 dBA Noise Floor
2 Hz to 20 kHz frequency range
0V Prepolarized design
5 probe tips
-40 to 800°C operating temperature range
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Sound pressure distribution for cell phones
Headphone testing
Music equipment sound distribution
Acoustic impedance measurements
Leak detection
General noise test in high temperatures
General purpose sound analysis in confined areas
These microphones can be flush mounted in a cavity, tube, wall or panel. This design allows for equalization of atmospheric pressure between the inside of the microphone and the outside of the structure. They are recommended for applications such as impedance tube testing, HVAC testing, and where high sound pressure levels or high frequency measurements are required.
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Sensitivity: 1.0 mV/Pa
Frequency: 3 Hz100 kHz (+/- 3dB)
Cartridge Noise: 35 dBA
Max Amplitude: 174 dB
Temperature: -40 to +120°C
Polarization: Prepolarized (0V)
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Impedance tube
Panel testing
Flush mounting applications
Closed couplers
Gunshot analysis
Research and development
Hearing preservation and safety
The PCB® model 377A14 is a 1/4" side vented Pressure Field design which allows for equalization of atmospheric pressure when used in a flush mounted cavity, tube, wall or panel where the static atmospheric pressure inside varies greatly to outside of the structure. It is recommended for applications where high amplitude sound pressure levels or high frequency measurements are required. For optimum results use with the PCB® model 426A05 vent less preamplifier, or order as a Model 378A14, microphone and preamplifier mated pair.
High amplitude applications such as airbag testing, gunshot analysis, blast detection, and hearing preservation/safety require microphones that accurately measure high sound pressure levels.
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Sensitivity: 0.25 mV/Pa
Frequency: 4 Hz 20 kHz
Max Amplitude: 187dB
Temperature: -40 to +120°C
Polarization: Prepolarized (0V)
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Precision sound level measurements
Research and development
Hearing preservation and safety
Airbag testing
Gunshot analysis
Blast detection
PCB®’s quartz, piezoelectric force and strain sensors are durable measurement devices which possess exceptional characteristics for the measurement of high frequency dynamic force and strain events. Typical measurements include dynamic and quasi-static forces as encountered during actuation, compression, impact, impulse, reaction, and tension.
Since the measurement signal generated by a quartz sensor will decay over time, long-term, static force measurements are not feasible. However shorter-term, or “quasi-static”, measurements are possible within certain time limits, depending upon the sensor and signal conditioning used.
Due to this limitation, it is not practical to use quartz force sensors in weighing applications where strain gage type load cell is best suited. For dynamic force applications; however, quartz force sensors offer many advantages and several unique characteristics that make them ideal choice for many dynamic force measurement requirements.
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General purpose force sensors are offered in either stud or axial mounted configurations. They are internally pre-loaded and can be used for dynamic compression, tension, and impact force measurements. Tapped mounting holes on both ends of the radial connector style support link, platform, integrated link, and free-standing installations. The axial mounted type offers protection of the electrical connector and sensor cable from potential damage during drop testing and in free-standing installations. Supplied impact caps facilitate impact and drop force measurements.
Versions offering full-scale measurement ranges of 10 lb to 5000 lb compression (45 to 22k N) and 500 lb (2200 N) tension are available. For higher ranges, consider the dedicated ring, link, or impact-style sensor configurations. Applications include matrix print-head studies, drop testing, machinery studies, punching and forming operations, impact testing, fatigue testing, fracture analysis, and materials testing.
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Ring-style sensor configurations measure dynamic compression. Tension measurements are also possible if the unit has been installed with proper pre-load. The through-hole mounting supports platform, integrated link, and support style installations using either a through-bolt or the supplied stud.
Versions offering full-scale measurements of 10 lb to 100k lb (45 to 450k N) compression are available. Tension range is dependent upon the amount of applied pre-load and strength of mounting stud used. Applications include tablet presses, stamping, punching and forming operations, balancing, machinery studies, and force-controlled vibration testing.
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Three-component quartz force ring sensors are capable of simultaneously measuring dynamic force in three orthogonal directions (X, Y, and Z). They contain three sets of quartz plates that are stacked in a preloaded arrangement. Each set responds to the vector component of an applied force acting along its sensitive axis. 3-component ring force sensors must be statically preloaded for optimum performance. Preloading provides the sensing elements with the compressive loading required to allow the proper transmission of shear forces. Versions are available with ranges up to 10k lb (45k N) in the z-axis (perpendicular to the top surface), and up to 4000 lb (18k N) in the x-and y (shear) axes. Both ICP® and charge output styles are available.
三分量消除预加载力的联系requirement of 3-component quartz force ring sensors, and offers a convenient, 4-screw hole mounting plate on each side end the sensor. Quartz 3-component force links are constructed by installing a 3-component force ring sensor, under preload, between two mounting plates.
An elastic, beryllium-copper stud holds the stainless steel assembly together. This elastic stud permits the applied force to be sensed by the crystals with a minimal amount of shunted force. The stud also provides the necessary normal force, and the friction required to transmit shear forces in the x- and y-axes. Since 3-component force links are factory preloaded, they may be used directly for measurement of compression and tension in the z-axis, and positive and negative forces in the x- and y-axes. Versions are available with ranges up to 10k lb (45k N) in the z-axis (perpendicular to the top surface), and up to 4000 lb (18k N) in the x- and y-axes. Both ICP® and charge output styles are available. ICP® designs use built-in microelectronic circuitry that provides a low-impedance voltage output via a multipin connector. This arrangement offers system simplicity by requiring only a single multi-conductor sensor cable. The low-impedance voltage signal makes this sensor ideal for use in harsh industrial environments.
Charge output 3-component force sensors operate with in-line charge converters or conventional laboratory-style charge amplifiers. The use of laboratory-style charge amplifiers permits each channel to be independently ranged to maximize signal-to-noise ratio. Charge output styles are recommended for higher temperature applications and can be used for quasi-static measurements with long discharge time constant charge amplifiers.
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mpact-style sensors are specifically designed for impact force measurements. The sensor is typically mounted in a free-standing manner with the installed impact cap directed toward the oncoming object with which it will collide.
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Often the test engineer will try to take low level measurements with a sensors not rated for these low levels. Due to insufficient sensitivity the resulting data may be noisy, hard to analyze or unusable.
Using the appropriately sized and ranged PCB Miniature Quartz Force Sensor solves the problem and gives reliable data at a Low Amplitude level. The miniature sensor configuration permits low-amplitude, dynamic compression, tension, and impact force measurements.
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The full line of PCB® of piezoelectric pressure sensors are used for a variety of dynamic pressure measurements.
The ability to measure small pressure fluctuations at high static pressure levels is a unique characteristic of piezoelectric pressure sensors. With ICP® amplified output, the transducers are well-suited for continuous operation in “dirty” environments, underwater, and in field test applications across long cables. Special low-noise cable and charge amplifiers are not required. These sensors are ideal for virtually all dynamic pressure applications where sensor temperatures range from -320 to +275 °F (-196 to +135 °C). For higher temperature applications, charge output sensors are available for use up to +750 °F (+399 °C).
Although piezoelectric pressure sensors are primarily recommended for dynamic pressure measurements, some quartz pressure sensors have long discharge time constants that extend low-frequency capability to permit static calibration and measurement of quasi-static pressures over a period of a few seconds.
Solid state construction of a piezoelectric pressure transducer provides a wide linear measuring range such that PCB® confidently provides calibrations at 100% and 10% of full scale output for most models.
To discuss specific applications, or if a special pressure sensor or adapto is required, please contact PCB® for assistance.
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PCB® dynamic pressure sensors set the standard for extremely fast, micro-second response with a wide amplitude and frequency range. These characteristics allow them to excel in high-frequency applications, where minimum sensor diameter is required.
Tips from Techs:
When calibrating in air or other gas, apply grease to the diaphragm to avoid false data caused by thermal shock.
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PCB®s sub-miniature 105C dynamic pressure sensors are small enough to accommodate for installation where space is limited. These dynamic pressure sensors are designed specifically to fit into tight spaces where mounting space is at a premium.
These transducers are excellent for cavitation studies due to a robust, solid diaphragm design. Measurement ranges include 100 psi and 1000 psi.
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High sensitivity ICP® pressure sensors are for low pressure measurements requiring excellent resolution and small size. PCB® Series 112A pressure sensors are used to measure small dynamic hydraulic and pneumatic pressures such as turbulence, noise, sound, and pulsations, especially in adverse environments. They are capable of measuring high-intensity sound pressures from 111 to 210 dB at any static pressure level from full vacuum to 1,000 psi (6,895 kPa).
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PCB® Cryogenic quartz dynamic pressure sensors are a high-resolution ICP® pressure sensor design, specially made for cryogenic environments. They consistently follow dynamic events found in cryogenic turbo pumps for liquid fuel handling systems or biomedical research.to avoid false data caused by thermal shock.
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One of the toughest applications for pressure sensors is measuring high pressure, repetitive pulses, such as those encountered in hydraulic applications. However, our Series 108 & 118 pressure sensors are designed to continuously measure repetitive pulses during applications such as hydraulic cylinder torture testing or diesel fuel injection. Ordinary diaphragm-type sensors usually fatigue quickly in such applications.
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High sensitivity micro-pressure sensors are well suited for short wavelength acoustic and shock wave measurements associated with high-frequency projectile detection systems. Incorporating a 1mm diameter sensing element and integral microelectronics in a 3mm housing, these sensors have very high sensitivity and microsecond response capable of identifying the bow and stern wave from a passing projectile. An internal 8 kHz high-pass filter eliminates low-frequency inputs. Series 132 Microsensors are available in five different physical configurations to accommodate a wide range of application requirements.
Model 132A30 Microsensors all have a sensitivity of 100 mV/psi and come in a variety of external configurations to suit your specific application.
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We make it our business to stay on top of emerging industry demands so that the load cells we provide help you meet your ever-changing test requirements. Our broad selection of competitively priced load products will help you meet the most demanding test and measurement requirements. Used in automotive, aerospace, R&D, and process control applications, our drop-in replacement load cells are designed to provide years of dependable performance.
Our load cell offering includes competitively priced general purpose and fatigue rated load cells, which come in a variety of mechanical configurations such as single or dual bridge, low profile, canister, rod-end, and s-beam load cells all of which provide excellent accuracy at an affordable price. We also provide a complete line of signal conditioners and accessories to complement our load cells.
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PCB Load & Torque, a division of PCB Piezotronics, manufactures a wide range of high-accuracy, strain gage load cells for aerospace, automotive, industrial, and process control applications.
Series 1400 includes a dual output feature that offers sensor redundancy and the ability to provide control feedback from one sensor while the other is used for data acquisition. These load cells are available in multiple ranges and have a NIST traceable, A2LA accredited calibration to ISO 17025, in both tension and compression directions. Additional features include low deflection, high accuracy and repeatability, thermal compensation and moment compensation.
Fatigue-rated load cells are specifically designed for durability testing machine manufacturers and users, or any application where high cyclic loads are present. Applications include material testing, component life cycle testing, and structural testing. All fatigue-rated load cells are guaranteed against fatigue failure for 100 million fully reversed cycles.
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Our low profile load cells feature an advanced structural design that makes them extremely durable, accurate and resistant to large extraneous shear and moment loads. To perform in a linear and predictable manner, the outside diameter of the load cell must be bolted to a flat rigid surface. To ensure that they can also be properly mounted in applications where there is no flat rigid surface, they include a factory installed base that provides a convenient threaded attachment point for easy installation and use in both tension and compression. All low profile load cells are stocked with the mounting base installed, but we can remove the base upon request Standard capacities are 500, 1k, 2k, 5k, 12.5k, 25k, 50k, and 100k lbs.
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PCB's cost-effective canister load cells are easy to install and ideal for low-capacity applications. They are used in applications such as weighing, quality control, tactile forces, and static material test machines, Canister style load cells also include a built-in mounting base for a simplified installation in both tension and compression applications. Standard capacities are 25, 50, 100, 200, and 300 lbs.
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Our rod-end load cells are designed for integration into tension measurement in applications such as process automation, quality assurance, and production monitoring. We also offer a sphere and clevis style model, which is particularly effective for off-axis/side loading applications due to their excellent bending strength. They are versatile, durable, and fit easily into small spaces such as inline with vehicle tie rods. Standard capacities are 500, 1k, 2k, 5k,10k, and 20k lbs.
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S-Type load cells are low-cost and high performance side mounted load cells suitable for a number of weighing and general force measurement applications. They come with a 6-foot strain relieved integral cable with pigtail leads that are stripped and tinned for electrical interface. Standard capacities are 50, 100, 250, 500, 1k, 2k, and 5k lbs.
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Fatigue rated load cells are specifically designed for component durability and fatigue test machines where highly cyclical loading is present. These rugged load cells are extremely resistant to extraneous bending and side loading forces. They are used for material testing, component life cycle testing and structural testing. All fatigue rated load cells are guaranteed against fatigue failure for 100 million fully reversed cycles.
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For more than 25 years, PCB Load & Torque’s torque sensors have helped customers meet the most demanding test and measurement requirements in the areas of automotive, aerospace, R&D and process control.
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If it rotates, we can instrument it and provide real-time wireless data!
Our Load & Torque Division and Accumetrics (a PCB Group Company) offer a comprehensive line of telemetry products that provide a simple, accurate method of conditioning and transmitting strain, thermocouple, voltage, or ICP® signals on rotating or moving machinery while operating in a completely contactless mode. This configuration allows users to measure torque without interrupting existing shaft systems to install in-line torque transducers.
Our solutions are ideal for
AT-5000 EasyApp
Looking to measure torque in high-G environments or in small spaces?
Accumetrics, a PCB Group Company, offers battery-powered digital telemetry systems that feature a low mounting profile and low power consumption, and directly measure, digitize, and transmit true torque data from automotive rotating half-shafts, drive shafts and rotors of all sizes and speeds.
A replacement for slip rings and legacy FM telemetry
一个革命性的进步微型遥测,the AT-5000 series replaces slip rings and legacy FM telemetry, offering a perfect solution for applications requiring dependable data retrieval and easy installation (even in tight places).
Designed for fast and dependable driveshaft measurements, the AT-5000 EasyApp uses a small, battery powered, strap-mounted transmitter to directly measure, digitize, and transmit true torque data from rotating half-shafts, drive shafts and rotors. The system is also used for temperature, voltage, and acceleration sensing.
Configurable Fastener Testing Solutions for:
Fastener Assembly Products for:
For Torque-Angle-Tension Testing of Threaded Fastener Components
PCB的962型便携式数据记录器是一个打击y-operated, transient recorder with two transducer inputs that can be used with torque-only, torque-angle, or force transducers. It can serve as a portable threaded fastener laboratory for measuring fastener torque, angle of turn, and clamp load. Ideal for performing fastener analysis, for auditing and certifying power tools, and for testing hand torque wrenches; Model 962 is a cost effective, versatile, and easy-to-use recorder that can collect numeric peak data, XY graphic plots, and store the data to a thumb drive. The data can be easily displayed or printed on a PC running FastPlot2 software. The alphanumeric setup and calibration menus assure ease of operation. The unit can be used with all RS Technologies' rotary torque-angle and clamp force transducers and other conventional and industry-standard strain gage transducers.
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Series PC9000 Rotary Torque Sensors are widely used in the fastener assembly market to verify the performance of hand and power torque tools. These strain gage-based transducers are fitted on the output drive of a power tool and measure the torque applied by the tool to the fastener on an actual assembly. This measurement provides important information about tool shut off and can assist in establishing specifications for proper assembly.
When equipped with an optional angle encoder, the rotary torque transducer can also measure the angle of fastener rotation which is an important indication of joint integrity. Torque-angle transducers can provide the data to draw torque vs. time or torque vs. angle plots that can help analyze problematic joints and determine appropriate tightening strategies. They are also a key component of a threaded fastener torque tension testing machine.
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For Complete Torque-Angle-Tension Testing & Analysis of Threaded Fastener Components
PCB Model 3200 LabMaster Professional is the key part of a fastener torque-tension test system. It provides complete data acquisition of applied torque, angle of fastener rotation, clamp load and thread torque. This system allows graphing of any input versus any other such as torque vs. angle, torque vs. clamp load, etc., and also provides multiple plotting capabilities so that plots of several tests can be overlaid. When thread torque is measured, the LabMaster Professional can calculate friction coefficients to help determine fastener performance. PCB provides calibration services for this and their other torque and force products at its A2LA Accredited Calibration Laboratory in Farmington Hills, Michigan.
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For Use in Measuring and Analyzing Threaded Fastener Characteristics in Production Lot Testing and R&D Studies
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保证质量的螺纹紧固件gins with proper setup of the assembly tools and may include periodic testing of the tools on the assembly line, torque audits of assembled fasteners, and the capability of testing and analyzing fasteners if problems arise. These efforts should begin with an understanding of the behavior of individual fasteners, recognizing the interaction of the material properties of the fastener, clamped components, and internally threaded components, as well as the influence of coatings, lubricants, and adhesives on the performance of fasteners in bolted joints.
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For Torque-Angle-Tension Testing of Threaded Fastener Components
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For Use in Calibration & Certification of Power Tools
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PCB Piezotronics manufactures a wide variety of electronics to power ICP®, PE (Charge Mode), MEMS, strain gage and other types of sensors. All of these products provide conditioning of sensor signals for transmission to data acquisition systems.
Charge converters and amplifiers convert high impedance signals to low impedance voltage signals. Signal conditioners can have AC or DC coupling and can provide additional conditioning including gain, filtering and integration. Most PCB signal conditioners also include fault monitoring LED’s that indicate signal overload, open and short circuits.
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