Method of and apparatus for determining the position of a movabl

Details Method of and apparatus for determining the position of a movabl Method of and apparatus for determining the position of a movabl

1985-04-03

1986-05-27

Jones, Larry

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

34082507, 364550, F16K 3700

Patent

active

045909636

ABSTRACT:
The position of a valve member is sensed by a transducer mounted on the exterior of the valve housing. The transducer is connected to a passive circuit located within an enclosure mounted on or adjacent to the valve housing. The passive circuit, when connected to a source of electrical power, provides a signal commensurate with the output of the transducer and an encoded signal which identifies the valve. The information contained in these signals is transmitted to a remote location, decoded and employed to determine the existance of a valve member position error.

REFERENCES:
patent: 2898543 (1959-08-01), Roper et al.
patent: 3852730 (1974-12-01), Commins
patent: 4031513 (1977-06-01), Simciak
patent: 4523286 (1985-06-01), Koga et al.

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