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PCB Piezotronics, Inc. manufactures accelerometers, force sensors, load cells, microphones, pressure transducers and transmitters, strain sensors, torque sensors, signal conditioners, cables, and accessories. This instrumentation is used for test, measurement, monitoring, and feedback control requirements in automotive, aerospace, industrial, R&D, military, educational, commercial, and OEM applications.

Accelerometers |Force Sensors| Pressure Sensors | Microphones




Test and Measurement Microphones




PCB® offers both externally polarized and prepolarized (also know as “electret”) microphones. Both types require a preamplifier for operation; however, prepolarized types may be powered with low voltage, constant current (2-20 mA) ICP® sensor signal conditioners and coaxial cables for an overall lower cost-per-channel. Externally polarized microphones require a 200 V polarization voltage. Free-field, random incidence, and pressure response versions are available for each microphone type. All microphones are individually tested for performance. A2LA accredited microphone calibration services are also available, for both PCB® and competitor models.

Precision Acoustic Microphones

  • Modern prepolarized (electret) or traditional externally polarized types
  • Can be utilized with Type 1 systems
  • Meet IEC & ANSI standards

    		Model 377A50

    1/8"
    40 to 178 dB
    6.5 to 140k Hz
    		Model 377A12

    1/4"
    30 to 187 dB
    4 to 20k Hz
    		Model 377B02

    1/2" free-field response
    15 to 146 dB
    3.15 to 20k Hz
    		Model 377A60

    1/2" , 15 to 146 dB
    3.15 to 10k Hz
    		Model 377A42

    1" free-field response
    10 to 146 dB
    2.6 to 20k Hz


    Preamplifiers

    - Small and rugged
    - Stainless steel housing
    - Low noise floor
    - Wide frequency bandwidth
    - Compatible with ICP or 200 V externally polarized microphones


    		 Model 426A30

     - Compatible with 200 V externally polarized microphones
    - 1/2” diameter
    -0.25 dB attenuation
    		Model 426A11
    - Compatible with ICP prepolarized microphones
    - 1/2” diameter
    - Gain and filter switches
    		Model 426E01
    - Compatible with - ICP prepolarized microphones
    - 1/2” diameter
    - 2-wire operation; operates from ICP® sensor power
    -0.04 dB attenuation
    		Model 426B03

    - Compatible with - ICP prepolarized microphones
    - 1/4" diameter
    -0.25 dB attenuation
    		Model 480A25
    Preamplifier Power Supply
     - 0 & 200 V polarization voltage
    - 0, 20 & 40 dB gain
    - 7-pin LEMO input connector
    - Extended battery life (40 hours)
    - Selectable flat(Z), A & C weighting
    - 8.02" L x 4.10" W x 1.29" H
    - (204 x 104 x 32.8 mm)


    ICP Array Microphones

    - Cost-effective electret microphones for multi-channel measurements
    - Integral preamplifier
    - Operate from ICP sensor power
    - Interchangeable with ICP accelerometer set-ups
    - Array kits available for multi-channel applications
    - TEDS compatible


    		 Model 379A01
    Array Stand
    - For sound pressure mapping, near-field acoustic holography & vibro-acoustic testing
    - Accommodates installing array microphones in a grid pattern
    - Adjustable grid sizes & configurations
    - Pivots and rotates to accommodate test requirements
    		Model 130D20
    - 1/4" free-field response
    - 30 to 122 dB range
    - 20 to 15k Hz
    - BNC connector
    		Model 130D21
    - 1/4" free-field response
    - 30 to 122 dB range
    - 20 to 15k Hz
    - 10-32 connector


    Acoustic Calibrators

    - For microphones that meet IEC and ANSI standards
    - Lightweight, portable and battery operated
    - Available with optional adaptors for a variety of microphone diameters
    		 Model CAL200
    - 1/8", 1/4" & 1/2" microphones (with optional adaptors)
    - 1k Hz ± 1% frequency
    - 94 dB, 114 dB ± 0.2 dB output level (re 20 µPa)
    - Type 1 & Type 2 versions
    - 4.18" L ~ 2.5" W ~ 1.02" D (106.1 ~ 63.4 ~ 25.9 mm)
    		Model CAL250
    - 1/8", 1/4", 1/2" & 1" microphones (with optional adaptors)
    - 251.2 Hz ± 2.0 Hz frequency
    - 114 dB, ± 0.1 dB output level (re 20 µPa)
    - Automatic barometric pressure compensation
    - 4.9" L x 1.75" Dia (124 x 44.5 mm)
    		Model 079A31
    8-channel calibration coupler (for use with CAL250)


    Specialty Microphones

    		 High Temperature Probe Microphones
    - Designed for use in difficult measurement environments, small cavities, harsh environments, or high temperatures to +1,472 F (+ 800 C)
    - Multiple probe tip lengths
    - High acoustic input probe tip minimizes influence on acoustic field
    		Low-profile Surface Microphone
    - For automotive, aeronautical & general acoustic, sound pressure level testing
    - 20 to 15k Hz
    - 40 to 122 dB range
    - Operates from ICPR sensor power


    Microphone Accessories

    		Windscreen
    		Nose cones
    		Adaptors/Holders
    		A-weight Filter
    		Cables
    		Microphone Stands


     

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