Measuring and testing – With fluid pressure – Leakage
Patent
1998-02-27
2000-03-21
Williams, Hezron
Measuring and testing
With fluid pressure
Leakage
73 2901, 324549, 340604, G01M 304, G01N 700, G01R 3102, G08B 2100
Patent
active
060389141
ABSTRACT:
A leak sensor system for use in liquid processing equipment is disclosed. Liquid is detected by a sensing resistor whose impedance decreases dramatically in the presence of liquid. The effect of this impedance drop on the output voltage of he sensor indicates a wet or moist state which may indicate leakage from the liquid processing. A terminal resistor is in the circuit beyond the sensing resistor ro provide a warning indicator when the sensing resistor is damage or disconnected. The leak sensor system is particularly useful in centrifuge equipment, e.g., for the processing of blood.
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Carr Raymond A.
Lauman Brian C.
Bristol--Myers Squibb Company
Furman Jr. Theodore R.
Kilcoyne John M.
Krieger Staurt E.
Politzer Jay L.
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