Diametral force sensor

Details Diametral force sensor Diametral force sensor

1994-04-22

1996-03-19

Chilcot, Richard

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73862621, G01L 126

Patent

active

054995426

ABSTRACT:
Disclosed is a device for determining the diametral changes in a substantially cylindrical member produced by axial loads imposed on the cylindrical member, such as the valve stem in a motor operated valve assembly. The device is a clamp assembly comprised of a first jaw member and a second jaw member rigidly connected to each other and to the portions of the periphery of the cylindrical member by a pair of studs. The second jaw member has a flexure with a contact surface contacting a peripheral portion of the cylindrical member and a projection extending away from the contact surface to transmit compressive forces representative of diametral changes in the cylindrical member against a compression load cell housed in the second jaw member. The device is useful in the field of valve diagnostics.

REFERENCES:
patent: 3210993 (1965-10-01), Shoor et al.
patent: 4527335 (1985-07-01), Meline
patent: 4542649 (1985-09-01), Charbonneau et al.
patent: 4911004 (1990-03-01), Leon
patent: 4930228 (1990-06-01), Anderson et al.
patent: 4936150 (1990-06-01), Burke et al.
patent: 5103681 (1992-04-01), Duff
patent: 5123283 (1992-06-01), Duff et al.

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