Q-factor enhancement in resonant phase sensing of resistive-inductive-capacitive sensors
AssigneeCirrus Logic, Inc.
InventorsTejasvi Das, Siddharth Maru, Zhong You, Luke Lapointe
Life of this patent
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Abstract
A system may include a resistive-inductive-capacitive sensor, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to 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 Q factor enhancer communicatively coupled to the resistive-inductive-capacitive sensor and configured to control a Q factor of the resistive-inductive-capacitive sensor.
Claims20
A system comprising:
- a resistive-inductive-capacitive sensor;
- a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to:
- 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 Q factor enhancer communicatively coupled to the resistive-inductive-capacitive sensor and configured to control a Q factor of the resistive-inductive-capacitive sensor.
A method comprising:
- measuring phase information associated with the resistive-inductive-capacitive sensor;
- based on the phase information, determining a displacement of a mechanical member relative to the resistive-inductive-capacitive sensor;
- and
- controlling a Q factor of the resistive-inductive-capacitive sensor with a Q factor enhancer communicatively coupled to the resistive-inductive-capacitive sensor.
Dependencies are inferred from the claim text.