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Title: Multiple channel optical data acquisition system

A multiple channel optical data acquisition system is provided in which a plurality of remote sensors monitoring specific process variable are interrogated by means of a single optical fiber connecting the remote station/sensors to a base station. The remote station/sensors derive all power from light transmitted through the fiber from the base station. Each station/sensor is individually accessed by means of a light modulated address code sent over the fiber. The remote station/sensors use a single light emitting diode to both send and receive light signals to communicate with the base station and provide power for the remote station. The system described can power at least 100 remote station/sensors over an optical fiber one mile in length.
Authors:
;
Publication Date:
OSTI Identifier:
5382973
Resource Type:
Patent
Research Org:
USDOE Morgantown Energy Technology Center, WV
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; DATA ACQUISITION SYSTEMS; DESIGN; OPTICAL FIBERS; LIGHT EMITTING DIODES; OPTICAL SYSTEMS; REMOTE SENSING; FIBERS; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES 420200* -- Engineering-- Facilities, Equipment, & Techniques