Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-02-21
1991-02-05
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25022725, G01N 1506
Patent
active
049907948
ABSTRACT:
A sensing-measuring device for the continuous determination of cavitation in dynamic pumps, consisting of an optical probe mounted in proximity to the suction nozzle of the dynamic pump, said probe comprising a light emitter and an optical sensor which are positioned inclined at an angle to each other in such a manner as to perfectly center on the leading edge of the blades.
REFERENCES:
patent: 4808092 (1989-02-01), Funke
patent: 4915591 (1990-04-01), Funke
Ferrari Marco
Nava Pierluigi
Allen Stephone B.
Nelms David C.
Nuovopignone-Industrie Meccaniche e Founderia
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