PCB Piezotronics, Inc.
A manufacturer of piezoelectric quartz sensors, accelerometers, and associated electronics for the measurement of dynamic pressure, force, and vibration.
- 800-828-8840
716-684-0001 - 716-684-0987
- info@pcb.com
- 3425 Walden Avenue
Depew, NY 14043-2495
United States
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Pressure Sensors For Blast Testing
Pressure sensors with quartz, ceramic and tourmaline sensing elements are used for a wide variety of shock wave, blast and explosive testing. All of these applications require high frequency response and durability, ability to drive long cables and operate in adverse environments.
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Microphone Preamplifier
HT426E01
Nominal Microphone Diameter1/2Frequency Response Electrical Noise(at 22 C) (Flat 20 Hz to 20 kHz)Distortion (3 V rms input at 1 kHz)<-70 dB<-70 dB[1] EnvironmentalTemperature Range (Operating)-40 to +248 FExcitation Voltage 20 to 32 Constant Current Excitation 2 to 10 mA
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General Purpose Single Axis Accelerometers
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.
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Multi-purpose Signal Conditioners
The 482C series comprises 4-channel benchtop signal conditioners, while the 483C series offers 8-channel rack-mounted units. Utilizing identical signal conditioning electronics across equivalent 4 and 8-channel models ensures consistent performance. Both signal conditioner series offer standalone units with essential functionalities, as well as units equipped with advanced features like a front panel keypad and display or an Ethernet port for computer control. Additional features encompass gain adjustment, filtering options, LED fault indicators, and TEDS capability.
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PROBE MICROPHONE ICP
377B26
Open Circuit Sensitivity (at 250 Hz)Frequency Range (+2.2/-4.9 dB)2 to 20000 HzLower Limiting Frequency (-3 dB)Inherent Noise<45 dB(A) re 20 Pa Dynamic Range(3% Distortion Limit)EnvironmentalTemperature Range (Operating)-40 to +158 F-40 to +70 C[5]
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Hydraulic & Pneumatic Pressure Sensors
One of the toughest applications for pressure sensors is measuring high pressure, repetitive pulses, such as those encountered in hydraulic applications. However, our 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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ICP® Shock Accelerometers
Piezoelectric ICP® accelerometers afford a very high signal output (+/- 5 volts full scale) and the ease of two-wire electrical connectivity. Their inherent ruggedness enables them to be severely over ranged without damage. The addition of internal mechanical isolation minimizes the high frequency stress that would otherwise be encountered by their ceramic sensing elements. This mechanical isolation, coupled with an internal 2-pole electrical filter, built into the ICP® circuitry, tailors the overall accelerometer response to assure data quality to frequencies as high as 10 kHz. Depending on the specific model, accelerations in excess of 50 kg can be successfully measured. These modern designs, with their internal elastomeric isolation materials are verified through calibration to remain dynamically linear and are enabling piezoelectric accelerometers to operate in increasingly severe acceleration environments.
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Dual-Mode Charge Amplifiers
Dual-mode charge amplifiers represent a versatile solution for both piezoelectric charge mode and ICP® sensors. Among the advanced features offered by models 443B01, 443B02 and 2775C are an ultra-low noise floor, sensor fault detection, overload detection, a built-in calibration reference signal, and an RS-232 port for seamless computer control. Notably, model 443B02 features a long discharge time constant selection, ideal for capturing quasi-static events lasting several seconds, a capability particularly beneficial for ballistics and ammunition testing applications. Model 2775C features AC, DC, and servo outputs.
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Low Outgassing ICP® Accelerometers
Low Outgassing ICP® (IEPE) Accelerometer Types & Their Applications.
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Modern Prepolarized Precision Condenser Microphones & Preamplifiers
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.
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Ground Isolated ICP® Pressure Sensors For High Frequency
PCB® Series 102B is a ground isolated version of the Series 113B. These sensors have all of the same features and benefits of the 113B Series, plus the added benefit of isolation, which helps prevent ground loop problems. This series can accommodate an optional ablative coating (Prefix: CA) to protect the diaphragm from thermal shock in flash-temperature applications.
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Accelerometers
A device that measures the vibration, or acceleration of motion, of a structure.
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High Sensitivity Pressure Sensors
High sensitivity ICP® pressure sensors are for low pressure measurements requiring excellent resolution and small size. They 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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Telemetry Systems
For Automotive, Aerospace, Marine, Motor & Generator Health, Energy, Power Plant, and Industrial Applications.