FALSE TRIGGERING PREVENTION IN A RESONANT PHASE SENSING SYSTEM
First Claim
1. A system comprising:
- a resistive-inductive-capacitive sensor;
a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to;
at a plurality of periodic intervals, measure phase information associated with the resistive-inductive-capacitive sensor; and
based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor; and
a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals.
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Accused Products
Abstract
A system may include a resistive-inductive-capacitive sensor, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to at a plurality of periodic intervals, measure phase information associated with the resistive-inductive-capacitive sensor and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor. The system may also include a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals.
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Citations
28 Claims
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1. A system comprising:
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a resistive-inductive-capacitive sensor; a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to; at a plurality of periodic intervals, measure phase information associated with the resistive-inductive-capacitive sensor; and based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor; and a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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at a plurality of periodic intervals, measure phase information associated with a resistive-inductive-capacitive sensor; based on the phase information, determine a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor; and driving the resistive-inductive-capacitive sensor at a driving frequency and a driving amplitude, wherein at least one of the driving frequency and the driving amplitude varies among the plurality of periodic intervals. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification