Microcomputerized electric field meter diagnostic and calibration system
Abstract
A computerized field meter calibration system which includes an apparatus for testing the calibration of field meters normally utilized for measuring electromagnetic field potentials is described. A reference voltage is applied to the field meter for causing signals to be produced on the output terminals thereof. A bank of relays is provided for selectively connecting output terminals of the field meter to a multiplexer by means of a digital voltmeter and an oscilloscope. A frequency-shift-keyed receiver is also connected to one of the terminals of the field meter for transmitting and converting a frequency shift keyed signal to a digital signal which is, subsequently, applied to the multiplexer.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- May 1978
- Bibcode:
- 1978nasa.reptQ....H
- Keywords:
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- Computerized Simulation;
- Electric Potential;
- Electromagnetic Fields;
- Electromagnetic Measurement;
- Microprocessors;
- Data Transmission;
- Digital Systems;
- Frequency Shift Keying;
- Multiplexing;
- Patents;
- Instrumentation and Photography