Manufacturer of electronic instrumentation including signal conditioners, custom power supplies, computer controlled amplifiers and computer controlled signal conditioning instrumentation.

MODEL 176 DUAL CHANNEL CHARGE AMPLIFIER MODULE

MODEL 176 DUAL CHANNEL CHARGE AMPLIFIER MODULE

Description

The Model 176  computer-controlled charge amplifier module features variable gain and output scaling and accepts either differential or single-ended inputs. Adjustable parameters include: accelerometer sensitivity, differential or single-ended mode, scaling, filter setting, external calibration and zero mode.

Specifications

Accel sensitivity: Any value from 2.0 to 200pC/g
Output scaling: 1mV/g, 10mV/g, 20mV/g, 100mV/g
Gain accuracy: ±1%
Input mode: Differential or single-ended (-IN tied to common)
Maximum input: 30,000pC per input; 60,000pC differential
Frequency response: 80kHz at 0.7VRMS out without distortion; 9kHz at 7VRMS out without distortion
Filter: Six-pole Butterworth highpass at 5Hz (always in), eight-pole Butterworth lowpass at 12kHz (may be bypassed)
External cal: Cal voltage converted to charge by matched pair of 1000pf capacitors per channel
Offset: Less than 5mVDC at output
Noise: Less than 3mVRMS, filter in, input disconnected
Fault indication: One green LED per channel turns red if amplifier output exceeds ±10V
Memory: On-board EEProm stores serial number, calibration date, etc.
Mechanical: 5.5” x 13.5” board, used with Model 5020-102 rack