Measuring device with optical signal transmission

Details Measuring device with optical signal transmission Measuring device with optical signal transmission

1979-10-24

1982-02-16

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Using radiant energy

455612, 455617, G01R 3100, H04B 900

Patent

active

043161413

ABSTRACT:
The invention relates to a measuring device having a transmitter side and a receiver side, arranged for signal transmission from the transmitter side to the receiver side via an optical connection. The transmitter side comprises members for combining an incoming measuring signal with a signal from a reference voltage source to two different signals, arranged to be transmitted to the receiver side via each of two parallel optical channels. The receiver side comprises means for receiving the two transmitted signals and for controlling the amplification in the signal paths with a view to obtaining compensation for variation of parameters included in the two channels and other elements in corresponding signal paths. In addition, the receiver side includes a device which, from the two transmitted signals, forms a signal (U.sub.ut) independent of the input measuring signal of the transmitter side.

REFERENCES:
patent: 3384837 (1968-05-01), Toussaint et al.
patent: 3666956 (1972-05-01), von Willisen
patent: 4070572 (1978-01-01), Summerhayes

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