Air micrometer

Details Air micrometer Air micrometer

1976-04-19

1978-05-09

Aegerter, Richard E.

Measuring and testing

Instrument proving or calibrating

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

73 378, 73 379, G01B 1310

Patent

active

040880095

ABSTRACT:
A comparison-type air micrometer having a differential pressure transducer has first and second subbranch pipe lines extending respectively to a standard gauge and a workpiece. Due to activation of an output correction circuit connected to an amplifier for the transducer output, measurement errors can be minimized and zero adjustment becomes easy.

REFERENCES:
patent: 2266566 (1941-12-01), Poole
patent: 2795855 (1957-06-01), Worthen
patent: 3006183 (1961-10-01), Baker
patent: 3477276 (1969-11-01), Fortier

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