Charge amplifier Trig-Tek™ 201AP

microphonepressurefor strain gauges

The Trig-Tek™ 201AP Charge Amplifier is designed to amplify the outputs from piezoelectric- or mV-type accelerometers, force gauges, microphones, and pressure pickups. The “Charge” output from the pickup, expressed in mV or pC/g,is then amplified and the AC signal proportional to the input is brought out via a BNC connector. The AC voltage output can be used to operate vibration monitors, recorders, analyzers, etc Product Information The Trig-Tek™ 201AP accepts inputs from piezoelectric or mV (built-in electronic) sensors, such as piezoelectric acceler- ometers, microphones, force gages, pressure pickups, etc. The charge input is converted to a propor- tional voltage. The gain is continuously adjustable over a 100 to 1 range. This gain range accommodates the pickups with a wide range of sensitivities to provide a calibrated AC output. MATURE The unit includes a four section Low-Pass Filter. The cutoff frequency can be selected by changing resistor values on a plug- in assembly. Nominal -3dB cutoff is 20 kHz. Cutoff frequencies up to 50 kHz and down to 500 Hz can be accomplished by changing the resistor values on the plug. Custom cutoffs are to be specified at the time of order Key Features • 1 Hz to 50 kHz bandwidth • 100:1 mV/pC gain ADJ • mV or pC input • Low-Pass Filter