Apparatus for detecting changes in inclination or acceleration
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United States of America Patent
Stats
-
Dec 31, 1985
Grant Date -
N/A
app pub date -
Feb 13, 1984
filing date -
Feb 13, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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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