Non-contact torque sensing for valve actuators
First Claim
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1. A method of sensing a force in a motor-operated valve actuator, the method comprising:
- wirelessly exciting a plurality of surface acoustic wave devices coupled to a component of a motor-operated valve actuator;
receiving a first wireless signal which is uniquely identifiable by being within a first frequency range from a first surface acoustic wave device of the plurality of acoustic wave devices;
receiving a second wireless signal which is uniquely identifiable by being within a second frequency range that is distinguishable from the first uniquely identifiable wireless signal from a second surface acoustic wave device of the plurality of acoustic wave devices; and
utilizing the first uniquely identifiable wireless signal and the second uniquely identifiable wireless signal to determine a force acting on the component.
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Abstract
Non-contact torque, thrust, strain, and other data sensing of a valve actuator or valve is disclosed. A sensor may include a surface acoustic wave device.
27 Citations
17 Claims
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1. A method of sensing a force in a motor-operated valve actuator, the method comprising:
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wirelessly exciting a plurality of surface acoustic wave devices coupled to a component of a motor-operated valve actuator; receiving a first wireless signal which is uniquely identifiable by being within a first frequency range from a first surface acoustic wave device of the plurality of acoustic wave devices; receiving a second wireless signal which is uniquely identifiable by being within a second frequency range that is distinguishable from the first uniquely identifiable wireless signal from a second surface acoustic wave device of the plurality of acoustic wave devices; and utilizing the first uniquely identifiable wireless signal and the second uniquely identifiable wireless signal to determine a force acting on the component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification