Voltage to air pressure transducer

Details Voltage to air pressure transducer Voltage to air pressure transducer

1976-09-24

1978-04-18

Feldbaum, Ronald

Coating apparatus

With vacuum or fluid pressure chamber

B05C 1100

Patent

active

040845397

ABSTRACT:
A means for providing a variable fluid pressure responsive to changes in a measured variable includes a fluid pressure reservoir and electrically controlled fluid supply and exhaust valves connected thereto. A pressure-to-voltage transducer is connected at the output of the reservoir and in turn is connected to a comparison means along with means for providing an electrical signal representative of a measured variable. The comparison means provides a difference signal, which difference signal is utilized to control the supply and exhaust valves.

REFERENCES:
patent: 3190261 (1965-06-01), Ziffer
patent: 3307824 (1967-03-01), Weisheit
patent: 3348519 (1967-10-01), Dyess et al.
patent: 3520276 (1970-07-01), Martin
patent: 3752189 (1973-08-01), Marr et al.
patent: 3908583 (1975-09-01), Eberle
patent: 3931787 (1976-01-01), Kuttner et al.

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