Calibration apparatus and method

Details Calibration apparatus and method Calibration apparatus and method

1976-02-05

1977-04-26

Ruehl, Charles A.

Measuring and testing

Instrument proving or calibrating

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

73309, G01F 2500

Patent

active

040193632

ABSTRACT:
Apparatus and method for the calibrating in the field of media and process condition change transmitters and controllers. Means and method for high resolution calibrating of condition change measuring and indicating apparatus by spring means external to the measuring by, and having a spring rate multiplyingthe change response of, such apparatus. Means and method of calibrating media and process change transmitters and controllers by inferentially simulating full span condition changes.

REFERENCES:
patent: 2107560 (1938-02-01), Boddy
patent: 2834217 (1958-05-01), Bauer
patent: 2991418 (1961-07-01), Kraft
patent: 3304773 (1964-03-01), Rogallo
patent: 3316763 (1967-05-01), De Giers
patent: 3707868 (1973-01-01), Fruit
patent: 3771346 (1973-11-01), Huslin, Jr.

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