Apparatus for detecting changes in inclination or acceleration

Details Apparatus for detecting changes in inclination or acceleration Apparatus for detecting changes in inclination or acceleration

G - Physics

01

B

340/137.1, 340/1

G01B 7/26 (2006.01) E21B 47/00 (2006.01)

Patent

CA 1271539

-29- ABSTRACT OF THE DISCLOSURE Apparatus for detecting changes in inclina- tion or acceleration is disclosed. In its preferred environment the apparatus is used to determine the position of the sucker-rod of a sucker-rod pump. The preferred embodiment of the apparatus includes a magnetic-field sensor such as a linear output trans- ducer which provides a linear output signal, and a cantilever spring having a counterweight and magnet on its free end disposed adjacent the linear transducer. Oscillation of the walking beam of the pump causes the spring supported magnet to move relative to the sensor producing linear output signals which are processed by other means to determine the position of the sucker-rod at all times. The apparatus may be used in other environments to determine either changes in inclination or changes in acceleration.

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