Pressure transducer

Details Pressure transducer Pressure transducer

1988-02-23

1989-05-02

Woodiel, Donald O.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73727, 310328, 310338, G01L 708, G01L 906, G01L 2700

Patent

active

048256854

ABSTRACT:
A self monitoring pressure transducer includes a reference chamber, that transmits the pressure through a fluid medium to the flat side of a diaphragm, using a piezoelement, arranged in the reference chamber, as an electrically controllable actor. The piezoelement can modulate the pressure in the reference chamber by a predetermined quantity. The modulation of the measuring signal associated with this pressure modulation permits self-monitoring of the pressure transducer while it is in operation.

REFERENCES:
patent: 2569987 (1951-10-01), Frondel
patent: 2571899 (1951-10-01), Kroft et al.
patent: 3766415 (1973-10-01), Dame et al.

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