Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1984-12-17
1987-01-27
LaRoche, Eugene R.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356133, H01J 516
Patent
active
046395946
ABSTRACT:
A fiberoptic probe for in situ sensing of liquid level, concentration and/or phase change contains the optical and electrical components as well as a reference fluid so that the components are at the temperature of the fluid to be monitored. A reference fiber is located in the reference fluid which is sealed in the probe so that volatile reference fluids can be used.
REFERENCES:
patent: 4152075 (1979-05-01), Rellstab et al.
patent: 4156149 (1979-05-01), Vaccari
patent: 4564292 (1986-01-01), Omet
Schoch Stephen A.
Sibley Howard W.
Carrier Corporation
LaRoche Eugene R.
Lee J. C.
Zobkiw David J.
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