The CC701 charge converter is a solid state, in-line device which converts the charge output of a high impedance piezoelectric vibration sensor to a low impedance voltage signal. It incorporates an overload protection circuit and the low noise Piezofet® amplifier. The CC701 yields a strong signal, immune to cable motion noise. It is compatible with standard signal readout equipment such as monitors, voltmeters, analyzers, etc. Long cables can be driven without signal loss. The CC701 charge converter is powered by the constant current source of a Wilcoxon power unit/amplifier (models P702, P703B, P704B, PR710 or PR712), or it can be supplied from an external constant current supply of 18-30 VDC, capable of delivering from 2-10 mA (a 4 mA constant current diode is recommended).

Features:

  • Overload protection
  • Strong voltage signal
  • Immune to cable motion noise
  • Compatible with standard signal readout equipment
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Temperature Range

  • -40° to 100° C (-40° to 212° F)

Sensitivity

  • Sensitivity, ±5%: 1 mV/pC

Non Linearity

  • <1%

Power Requirement

  • 18-30 Vdc
  • 2-10 mA

Output Impedence

  • Output Impedance (Depending on Source Capacitance): 25 to 150 Ohms

Frequency

  • Frequency Response (±5%): 10 to 25,000 Hz
  • Frequency Response (-3 dB): 0.5 Hz

Electrical Connectors

  • Signal Input: Microdot Connector 10-32
  • Signal Output: BNC Connector

Voltage

  • Output Voltage, Maximum: 5 V RMS
  • Bias Output Voltage, Nominal: 10 Vdc

Capacitance

  • Allowable Source Capacitance, Maximum: 6,000 pF

Circuit Protection

  • Overload Protection

Enclosure/Body Material

  • Stainless Steel

Noise

  • Electrical Noise, Nominal (Broadband: 2.5 Hz to 25 kHz): 5 to 10 µV
  • Electrical Noise, Nominal (Spectral: 10 Hz): 0.50 µV/√Hz
  • Electrical Noise, Nominal (Spectral: 100 Hz): 0.06 to 0.15 µV/√Hz
  • Electrical Noise, Nominal (Spectral: 1,000 Hz): 0.04 to 0.07 µV/√Hz
  • Electrical Noise, Nominal (Spectral: 10,000 Hz): 0.02 to 0.05 µV/√Hz