Methods and systems for capacitive motion sensing and position control
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United States of America Patent
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Dec 9, 2003
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N/A
app pub date -
Oct 4, 2000
filing date -
Oct 4, 2000
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Abstract
A system for detecting motion and proximity by determining capacitance between a sensor and an object. The sensor includes sensing surfaces made of a thin film of electrically conductive material mounted on a non-conductive surface. In another embodiment, the sensor is a human body. The sensor senses the capacitance between a sensor's surface and an object in its vicinity and provides the capacitance to a control system that directs machine movement. Because the sensor does not require direct contact or line-of-sight with the object, a machine can be controlled before harm occurs to the object.
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