Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1983-10-21
1986-05-27
Myracle, Jerry W.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01L 2700
Patent
active
045907919
ABSTRACT:
A testing and measuring apparatus and method is described for determining the accuracy of pressure transducers under test and for accurately measuring the pressure of a fluid. Accurate calibration of a referenced pressure transducer and automatic correction of the output signal produced by the reference transducer are features of the system. Specifically, the test system includes a reference pressure transducer, input and output fluid ports, solenoid control valves, a microcomputer and a key pad. Input to the reference pressure transducer is coupled to the solenoid control valves which are respectively coupled to the pressure standard, to atmosphere and to the input and output fluid ports. The output of the reference pressure transducer is coupled to a microcomputer programmed to automatically correct the output signal from the reference pressure transducer for certain predetermined inaccuracies and is also preferably programmed to control the operation of the solenoid control valves.
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U.S. Science Corp., Universal Dynamic Pressure Test Equipment, 1959 brochure.
Heit Henry R.
Reed Charles J.
Ametek Inc.
Myracle Jerry W.
Williams Hezron E.
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