Measuring and testing – Blower – pump – and hydraulic equipment
Patent
1990-07-09
1992-09-01
Levy, Stuart S.
Measuring and testing
Blower, pump, and hydraulic equipment
7386265, 73862627, G01M 900, G01L 122, F16K 3105
Patent
active
051429063
ABSTRACT:
An in-series load bearing sensor is provided for use with a motor operated valve assembly. The in-series load bearing sensor is installed in the mechanical load path between the actuator and valve yoke to provide a direct measurement of valve stem thrust and/or actuator output torque under actual operating conditions. Sensor is precalibrated and can be installed temporarily for testing purposes or permanently for ongoing monitoring of valve performance. Webs (40) have strain gauges (41, 42, 43) thereon which measure the valve stem torque and valve stem thrust at any given moment. Webs (40) link an inner load ring (30) and an outer load ring (20).
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Measurements Group, Inc. "Strain Gage Based Transducers", Chapter 2; pp. 7-28.
"Electronic Torque Monitoring for Valve Drives", Sulzer Technical Review, Apr. 1978, vol. 60; pp. 169-171.
Levy Stuart S.
Rhoa Joseph A.
Westinghouse Electric Corp.
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