Optical analog data link with simple self-test feature
Patent
·
OSTI ID:7121549
A communications circuit is described for optically transmitting analog data free of excessive ripple comprising a V/F converter having an input line for receiving an analog voltage signal from a source of voltage. The V/F converter has an output and is effective to produce a predetermined minimum carrier frequency at the output responsive to receipt of a zero voltage signal on the input line. An optical transmitter is connected to receive voltage pulses from the output and is operable to produce flashes of light at frequencies varying in proportion to variations in the frequency of the voltage pulses. An optical transmission link is connected to transmit the flashes of light and an optical receiver is connected to receive flashes of light from the transmission link and is operable to produce a chain of voltage pulses the frequency of which varies in proportion to variations in the frequency of the received flashes of light.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4633523
- OSTI ID:
- 7121549
- Country of Publication:
- United States
- Language:
- English
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