Communications: electrical – Continuously variable indicating – With supply voltage regulation or compensation
Patent
1990-01-31
1992-02-11
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With supply voltage regulation or compensation
34087011, 34087007, 307 24, 307150, 363 52, G08C 1902
Patent
active
050879120
ABSTRACT:
A universal pressure measurement interface ("UPMI") according to the invention enables interfacing of a multiplicity of pressure transmitters to a data acquisition system. The UPMI provides the necessary DC power and signal flow for field test measurements and is suitable for direct application in various sites with line voltage of from 100 to 240 VAC at 50-60 Hz.
REFERENCES:
patent: 2935740 (1960-05-01), Sperry
patent: 4703326 (1987-10-01), Ding et al.
Horabik Michael
Westinghouse Electric Corp.
Yusko Donald J.
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