|Technical Details || |
The CD72 Carrier Demodulator is a complete Multichannel system in a small package for OEM Applications. Using the latest integrated circuit techniques, this unit supplies a 5 volt, 5 kHz carrier excitation for Variable Reluctance and Variable Differential Transformer Transducers, demodulates and amplifies their outputs to provide a ±10 Vdc signal for static and dynamic measurements.
Available in either two (2) channel or four (4) channel configurations. The CD72 consists of an interconnecting "mother board" and either three (3) or five (5) plug-in circuit boards. One circuit card contains the oscillator power supply, which supplies the carrier excitation to the transducers and ±15 Vdc to power the carrier demodulators. The remaining circuit cards are the carrier demodulator boards.
The Carrier Demodulator Card amplifies and demodulates the transducer output signal to ±10 Vdc which is proportional to the stimulus applied to the transducer. Each card has a screwdriver adjustment for zero and span control.
Low input impedance allows for operation with transducers at a distance of over a thousand (1000) feet from the carrier demodulator with no degradation of signal.
An active filter on the output provides the CD72 with a flat frequency response from steady state to 1000 Hz.
Both input and output are protected against short circuit.
- 10 Vdc Output
- Carrier Excitation for Variable Reluctance and Variable Differential Transformer Transducers
- 2 or 4 Channel Operation
- Regulated Against Power Variations