TRANSDUCER
First Claim
1. A transducer for use in a position sensor, the transducer comprising a single laminate sensor board carrying:
- a plurality of windings formed by conductors on one or more layers of the sensor board, the windings being arrayed over a first area of the sensor board; and
detection circuitry mounted on another layer of the sensor board over a second area of the circuit board and electrically coupled to said windings, said detection circuitry having a first mode of operation in which signals inductively transmitted from or received by said windings are detected and a second mode of operation in which signals capacitively transmitted from or received by said windings are detected,wherein said windings and said detection circuitry are arranged on said sensor board so that said first and second areas oppose each other.
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Accused Products
Abstract
A transducer for a position sensor is described. The transducer comprises a single laminate sensor board carrying a plurality of windings formed by conductors on one or more layers of the sensor board, the windings being arrayed over a first area of the sensor board; and detection circuitry mounted on another layer of the sensor board over a second area of the circuit board and electrically coupled to said windings, said detection circuitry having a first mode of operation in which signals inductively coupled to or from said windings are detected and a second mode of operation in which signals capacitively coupled to or from said windings are detected. The windings and detection circuitry are arranged on the sensor board so that said first and second areas oppose each other. A position sensor incorporating the transducer is also described.
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Citations
25 Claims
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1. A transducer for use in a position sensor, the transducer comprising a single laminate sensor board carrying:
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a plurality of windings formed by conductors on one or more layers of the sensor board, the windings being arrayed over a first area of the sensor board; and detection circuitry mounted on another layer of the sensor board over a second area of the circuit board and electrically coupled to said windings, said detection circuitry having a first mode of operation in which signals inductively transmitted from or received by said windings are detected and a second mode of operation in which signals capacitively transmitted from or received by said windings are detected, wherein said windings and said detection circuitry are arranged on said sensor board so that said first and second areas oppose each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25)
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23. A transducer for use in a position sensor, the transducer comprising a single laminate sensor board carrying:
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a plurality of windings formed by conductors on one or more layers of the sensor board; and detection circuitry mounted on another layer of the sensor board and positioned under, and electrically coupled to, said windings, said detection circuitry having a first mode of operation in which signals inductively coupled with said windings are detected and a second mode of operation in which signals capacitively coupled with said windings are detected.
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Specification