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

MODEL 149 DUAL CHANNEL CHARGE AMPLIFIER

MODEL 149 DUAL CHANNEL CHARGE AMPLIFIER

Features

  • Compact – 16 channels per GPSC rack
  • Acceleration/displacement outputs
  • Controls in engineering units
  • Internal calibration

 

Description

The Model 149 is an economical, two-channel-per- module charge amplifier that plugs into Encore’s 19″ GPSC Instrumentation Rack.  Up to eight modules (16 channels) can be placed in a single GPSC rack.  Modules are available for strain, F/V, charge, accelerometer, proximitor, DC signal and LVDT signal conditioning. The GPSC rack features and integrate AC power supply that provides the required unregulated DC voltages to operate the modules.  The continuously adjustable, ten-turn locking dial sets channel sensitivity from 1 to 110pC/g.  Outputs are AC acceleration and RMS/DC displacement.  The front panel features a push button or remote CAL command that applies a 1000pC 350Hz calibration signal to both channels simultaneously.

Specifications

Input signal: Charge output from accelerometer
Input sensitivity: Front panel locking dial, adjustable from 1 to 11pC/g or 10 to 110pC/g, with internal 1 or 10 gain select jumper
Acceleration gain: Front panel switch selects 10mV/g or 100mV/g
Acceleration frequency response: 5Hz to 15kHz (factory adjustable)
Integration: Two stages convert acceleration to displacement, with unity gain frequency factory set at 350Hz
Displacement gain: Front panel switch selects 10mV/mil or 100mV/mil
Displacement frequency response: 15Hz to 15kHz, adjustable with components on plugin header
Acceleration output: ±10V max, 10mA peak load
DC output: DC voltage equal to RMS value of either acceleration or displacement signal, selected by
front panel switch; +7VDC max
Calibration: 500pC (peak) at 350Hz sinewave, applied to both channels simultaneously when front panel pushbutton is pressed, or on rack CAL command
Maximum signal input: 12000pC peak, up to 2kHz
Power: Unregulated ±24V from rack-mounted supply
Mechanical: 19″W x 5.25″H x 9″D, eight module (16 channel) rack adapter, Model 4015-113