PRECISION FILTERS, INC.
Requires Adobe Reader (PDF) Amplifiers for Shock
Analog Signal Conditioning for Shock Measurements
Precision Filters’ suite of conditioning cards for shock measurement provides solutions for strain and bridge sensors (28144), charge and IEPE accelerometers (28304) and low-level voltage inputs (28608B).
All three cards feature high slew rate, wide bandwidth and sharp programmable filtering. Gain is distributed before and after the filter, allowing the user to attenuate the resonant frequency of the sensor prior to amplification of the in-band signal, optimizing signal-to-noise ratio for pyroshock measurements. Equipped with Precision’s FLAT/PULSE filter technology, these amplifiers provide outstanding response for applications in either the time domain or the frequency domain.
Amplifiers for Shock Features
- Overall gain to x8192, distributed to attenuate
sensor resonance - Programmable 4 or-8 pole flat/pulse low-pass filters
- High slew rate
- Filtered bandwidth to 204.6 kHz, unfiltered bandwidth, 500 kHz
- Pre-filter overload detection
- Sensor mute mode
- Multiple buffered outputs per channel
28144
Strain/Bridge Conditioner
- 4-channels/ card,
64-channels/ system - Excitation: Balanced Constant Current™
or constant voltage - REZCOMP™ technology to extend frequency response of accelerometer, microphone and pressure sensor measurements
28304
Charge/IEPE
Conditioner
w/ LDTEDS™
- 4-channels/ card,
64-channels/ system - Dual mode: IEPE or charge
- REZCOMP™ technology to extend frequency response of accelerometer, microphone and pressure sensor measurements
28608B
Programmable Filter/Amplifier
- 8-channels/ card,
128-channels/ system - Input: balanced differential with AC/DC coupling
28000 Signal Conditioning System
The 28000 System makes it easy to manage a test with up to 256 channels of fully programmable transducer conditioning. Choose a mix of bridge, charge, IEPE w/TEDS, voltage (filter/amplifier), strain, thermocouple, RTD/potentiometer, frequency or other transducers.
- Mix up to 256 channels of fully programmable transducer conditioning
- Choose from 4 or 8-pole programmable filters
- Choice of 4, 8 or 16-slot chassis
- Ethernet network interface
- Automated factory acceptance and go/no-go tests verify system performance
