Measuring and testing – Borehole or drilling – Downhole test
Patent
1984-02-13
1985-12-31
Levy, Stewart J.
Measuring and testing
Borehole or drilling
Downhole test
33366, 73517R, G01C 906
Patent
active
045612994
ABSTRACT:
Apparatus for detecting changes in inclination 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 transducer 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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Electrohydraulic Controls-Brochure of Sundstrand Mobile Controls.
Chandra Rangasami S.
Goulart Joseph S.
Orlando Franklin P.
Chapman, Jr. John E.
FMC Corporation
Levy Stewart J.
Megley R. B.
Moore A. J.
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