H - Electricity – 03 – G
Patent
H - Electricity
03
G
325/1
H03G 3/20 (2006.01) G01R 15/22 (2006.01) G08C 23/06 (2006.01) H04B 10/00 (2006.01) H04B 10/152 (2006.01)
Patent
CA 1128132
-24- Abstract A measuring device has a transmitter side that is connected to a receiver side over an optical transmission link. The transmitter side receives an input measurement signal from a transducer and applies the input signal to an adder that also receives a feedback signal from the receiver side. The adder generates a comparison signal that corresponds to the differ- ence between the input signal and the feedback signal. The comparison signal is applied to a regulator on the receiver side. The regulator generates the feedback signal and an output signal having a magnitude corresponding to the magni- tude of the input signal. Amplification of the feedback sig- nal on the receiver side is controlled by time division or frequency division calibration signals, so that the total amplification of the feedback signal between the adder and the regulator is held constant.
336050
Adolfsson Morgan
Brogardh Torgny
Asea Aktiebolag
Robic Robic & Associes/associates
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