Optical sensing systems

Details Optical sensing systems Optical sensing systems

1988-07-13

1990-09-11

Scott, Jr., Leon

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 9616, 372 18, 372 6, H01J 516

Patent

active

049565494

ABSTRACT:
An optical sensing system comprising single light source and a series of phase shifting switching devices positioned linearly aligned with the light source. Each phase shifting device is driven by a driving device with pulses at different frequencies and sequentially from the most proximately located phase switching device to the most distant phase switching device so that light eventually passes through each of the phase switching devices. Fiber sensor arrays are aligned with each of the phase switching devices and light reflected from the fiber sensor arrays is detected by a plurality of photodetector devices each associated with a fiber sensor array.

REFERENCES:
patent: 4358851 (1982-11-01), Scifres et al.
patent: 4603421 (1986-07-01), Scifres et al.
patent: 4616898 (1986-10-01), Hicks, Jr.
patent: 4635246 (1987-01-01), Taylor et al.

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