Signal Conditioning

A Product of the Aerospace & Defense Division

PCB® Flight test signal conditioners, based on model number, work with PE (Piezoelectric) charge mode or ICP® (IEPE) voltage mode test sensors. PE sensors output a charge proportional to the measured parameter. ICP® (IEPE) sensors output a voltage proportional to the measured parameter. PE sensors are typically used when the sensor mounting location temperature exceeds the upper temperature limit of an ICP® (IEPE) sensor. The charge output needs conversion to a voltage signal for the data system to process. PCB’s manufactures airborne amplifiers and in-line charge converters normally located in a cooler environment than the associated sensor.

PCB® manufactures several ICP® signal conditioners for use with test sensors placed in locations where the ambient temperature is within sensor specifications.

Contact a PCB® Application Engineer to discuss your Flight Test Application.

  Airborne Amplifiers

Single-Channel, Charge Amplifier

Model 495M76

  • 15 mV/pC charge conversion
  • ±166 pC input range
  • 0.5 Hz to 50 Hz (-5%) frequency response
  • 12 VDC power
  • -40 to +250 °F (-40 to +121 °C) temperature range
  • 1.0H x 2.4W x 2.52D in (25.4H x 61.0W x 64.0D mm)

Note: This product is a controlled item under the International Traffic in Arms Regulations (ITAR), administered by the Office of Defense Trade Controls. Any export of this product from the United States, including any item in which this product may be incorporated, requires appropriate authorization from the U.S. State Department. Diversion contrary to U.S. law is prohibited.

Three-Channel, Charge Amplifier

Model 495M77

  • 28 mV/pC charge conversion
  • ±89 pC input range
  • 0.5 Hz to 50 Hz (-5%) frequency response
  • 12 VDC power
  • -40 to +250 °F (-40 to +121 °C) temperature range
  • 1.0H x 3.5W x 2.0D in (25.4H x 88.9W x 50.8D mm)

Note: This product is a controlled item under the International Traffic in Arms Regulations (ITAR), administered by the Office of Defense Trade Controls. Any export of this product from the United States, including any item in which this product may be incorporated, requires appropriate authorization from the U.S. State Department. Diversion contrary to U.S. law is prohibited.

Differential Charge

Series 495B10

  • 2 or 10 mV/pC charge conversion
  • ±1250 or ±250 pC input range
  • 10 Hz to 10 kHz (-5%) frequency response
  • 10 to 30 VDC power
  • -13 to +185 °F (-25 to +85 °C) temperature range
  • 5.5L x 173W x 1.21H in (139.7L x 42.8W x 30.8H mm)

Single-Channel, ICP® Signal Conditioner/Amplifier

Model 495B

  • +180 to +4,500 mV input range
  • 1 to 25 adjustable gain
  • 3 Hz (-5%) to 2k Hz (-3 bB) frequency response
  • 28 VDC power
  • -40 to +200 °F (-40 to +93 °C) temperature range
  • 2.86L x 1.13W x 0.88H in (72.7L x 28.7W x 22.4H mm)

  In-line Charge Converters

Model 422E12

  • For use with charge mode sensors
  • 10 mV/pC gain
  • ± 250 pC input range (±2%)
  • 5 to 100k Hz frequency response (±5%)
  • 3.4L x 0.5D in (85.1L x 12.7D mm)

Model 422E11

  • For use with charge mode sensors
  • 100 mV/pC gain
  • ± 25 pC input range (±2%)
  • 5 to 110k Hz frequency response (±5%)
  • 3.4L x 0.5D in (85.1L x 12.7D mm)

Model 422E35

  • For use with charge sensors that operate at high temperatures
  • 1 mV/pC gain
  • ± 2500 pC input range (±2%)
  • 5 to 100k Hz frequency response (±5%)
  • 3.4L x 0.5D in (85.1L x 12.7D mm)

Model 422E36

  • For use with charge sensors that operate at high temperatures
  • 10 mV/pC gain
  • ± 250 pC input range (±2%)
  • 5 to 100k Hz frequency response (±5%)
  • 3.4L x 0.5D in (85.1L x 12.7D mm)

Model 422M201

  • For use with charge sensors using aircraft power
  • 1 & 10 mV/pC gain, dual range
  • Overrange ± 3 V
  • 5 Hz Low frequency response (±5%)
  • 100k Hz High frequency response (20 mA)
  • 3.75L x 1.25W x 1.25H in (96L x 32W x 32H mm)

  Miniature, 3-Channel, ICP® Signal Conditioner

Model 485M49

  • For use with ICP® triaxial accelerometers
  • 18-30 VDC supply voltage
  • 4.0 (±1) mA DC supply current for ICP® sensor
  • 1 to 100k Hz frequency response (±5%)
  • 1.45H x 2.90W x 0.70D in (36.8H x 73.7W x 17.8D mm)

  Three-Channel, ICP® Signal Conditioner/Amplifier:

Model 495M57

  • Input signal +100 to +5000 mV Input range 0.5 to 25 adjustable gain
  • 0.9 Hz to 100 Hz (-3 dB%) frequency response
  • 28 VDC power
  • 12 VDC power
  • -40 to +200 °F (-40 to +93 °C) temperature range
  • 1.0L x 3.5W x 2.0H in (25.4L x 88.9W x 50.8H mm)