Methods and systems for capacitive motion sensing and position control
First Claim
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1. A medical imaging system comprising:
- a radiation source comprising at least one capacitance based proximity sensor;
a capacitive sensing circuit;
an object electrically coupled to said capacitive sensing circuit using a conductive strap; and
a control system configured to control positioning of said radiation source and said proximity sensor based on an input received from said capacitive sensing circuit.
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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.
60 Citations
14 Claims
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1. A medical imaging system comprising:
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a radiation source comprising at least one capacitance based proximity sensor;
a capacitive sensing circuit;
an object electrically coupled to said capacitive sensing circuit using a conductive strap; and
a control system configured to control positioning of said radiation source and said proximity sensor based on an input received from said capacitive sensing circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification