Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-08-31
1992-04-21
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356246, G01N 1506
Patent
active
051071339
ABSTRACT:
A reservoir chemical sensor has a sensor body containing a reservoir cell channel around which source and detector are positioned within the cell body. A replaceable modular reservoir cell which contains sensing solution fits snugly and removably in the channel in the sensor body. Different reservoir cells can be easily inserted and removed from the sensor body.
REFERENCES:
patent: 2483876 (1949-10-01), Boyer
patent: 2898802 (1959-08-01), Ljungberg et al.
patent: 3764214 (1973-10-01), Heiss
FiberChem Inc.
Nelms David C.
Sartorio Henry P.
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