Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1993-03-10
1994-11-08
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250904, G01N 1506
Patent
active
053629710
ABSTRACT:
A fiber optic detection system in which a single optic fiber has a U-shaped configuration. A source of light is disposed at one upper free end of the optic fiber and a light detector is disposed at the other upper free end of the optic fiber. At the bottom of the optic fiber is a light variable loop adapted to be disposed in various media, such as liquids, fluids and air. The light from the source of light is conducted from the source of light through the optic fiber and to the light detector. The quantum of light lost as the light travels through the light variable loop will depend on the medium or the concentration of the medium in which the light variable loop is disposed. The light detector detects the light advancing thereto to produce a signal representative of the medium or the concentration of the medium in which the light variable loop is disposed. An electronic circuit with a microprocessor is responsive to the signal produced by the light detector for determining the medium or the concentration of the medium in which the light variable loop is disposed.
REFERENCES:
patent: 3995168 (1976-11-01), Neuscheler et al.
patent: 4069838 (1978-01-01), Hansel et al.
patent: 4082959 (1978-04-01), Nakashima
patent: 4118634 (1978-10-01), Carvalko et al.
patent: 4155013 (1979-05-01), Spiteri
patent: 4156149 (1979-05-01), Vaccari
patent: 4287427 (1981-09-01), Scifres
patent: 4351180 (1982-10-01), Harding
patent: 4668870 (1987-05-01), Okura
patent: 4689484 (1987-08-01), McMahon
patent: 5200628 (1993-04-01), Ikeda et al.
patent: 5239175 (1993-08-01), Jawad et al.
Ivashin Victor
McCullough Robert B.
McMahon Robert L.
Nelms David C.
Terrascope Systems, Inc.
Wiseman Jack M.
LandOfFree
Fiber optic detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber optic detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic detection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1784722