Method and means for multiplexing optical sensors

Details Method and means for multiplexing optical sensors Method and means for multiplexing optical sensors

1985-08-07

1987-07-28

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

455612, G02F 100, G02F 200

Patent

active

046833749

ABSTRACT:
Apparatus for optically multiplexing the signals of several optical sensors when those sensors are of the type which utilize a single light input optical fiber for each sensor to send light to the sensor from a central monitoring station and a single signal output optical fiber for each sensor to communicate the light output of the sensor back to a single receiver in a central monitoring station. There is provided means which will sequentially introduce a predetermined amount of light flux into the sensors and thereby produce signal outputs from those sensors indicative of the magnitude of the quantities being measured. There is also provided means to communicate those outputs to a single common optical receiver.

REFERENCES:
patent: 4529875 (1985-07-01), Brogardh et al.
patent: 4560868 (1985-12-01), Brogardh et al.

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