Diametral change sensor for a cylindrical member

Details Diametral change sensor for a cylindrical member Diametral change sensor for a cylindrical member

1990-07-09

1992-06-23

Myracle, Jerry W.

Measuring and testing

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

7386262, G01L 122

Patent

active

051232839

ABSTRACT:
A sensing device for determining diametral changes of a cylindrical member which includes a clamp member having a body adapted to be positioned around the periphery of the cylindrical member and removably attached in at least partially spaced relationship to a portion of the cylindrical member. A proximity sensor attached to the body senses diametral changes in the cylindrical member and generates signals responsive to and representative of the sensed diametral changes. A computation unit connected to the proximity sensor receives the signals therefrom and determines the axial load on the cylindrical member, based on the diametral changes. Temperature sensors may be provided on the cylindrical member and the body for generating signals indicative of the respective temperatures of the cylindrical member and the body, which signals are transmitted to the computation unit and which, in response thereto, compensates for any temperature changes of the cylindrical member and the body in determining the axial load on the cylindrical member.

REFERENCES:
patent: 4484479 (1984-11-01), Eckhardt
patent: 4543725 (1985-10-01), Golinelli et al.
patent: 4587739 (1986-05-01), Holcomb et al.
patent: 4930228 (1990-06-01), Anderson et al.
patent: 4936150 (1990-06-01), Burke et al.
patent: 5020773 (1991-06-01), Tuft et al.

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