STATE HOLDING AND AUTONOMOUS INDUSTRIAL SENSING DEVICE
First Claim
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1. A passive sensor, configured to:
- detect one or more operational parameters of a gas turbine, wherein the electrically passive sensor is coupled to the gas turbine;
extract a portion of energy from the one or more operational parameters to utilize for operation;
store an indication of a value of the one or more operational parameters;
transition from a first mechanical state to a second mechanical state according to the value of the one or more operational parameters; and
provide a signal in response to receiving an interrogation signal, wherein the signal comprises the indication of the value of the one or more operational parameters.
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Abstract
A passive sensor is configured to detect one or more operational parameters of a gas turbine. The passive sensor is coupled to the gas turbine. The passive sensor is also configured to extract a portion of energy from the one or more operational parameters to utilize for operation, store an indication of a value of the one or more operational parameters, transition from a first mechanical state to a second mechanical state according to the value of the one or more operational parameters, and to provide a signal in response to receiving an interrogation signal. The signal comprises the indication of the value of the one or more operational parameters.
21 Citations
20 Claims
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1. A passive sensor, configured to:
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detect one or more operational parameters of a gas turbine, wherein the electrically passive sensor is coupled to the gas turbine; extract a portion of energy from the one or more operational parameters to utilize for operation; store an indication of a value of the one or more operational parameters; transition from a first mechanical state to a second mechanical state according to the value of the one or more operational parameters; and provide a signal in response to receiving an interrogation signal, wherein the signal comprises the indication of the value of the one or more operational parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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a turbine system; and one or more state-holding sensors coupled to the turbine system and configured to sense a vibration, a strain, a temperature, or a pressure of the turbine system, comprising; a storage mechanism including a latching device configured to hold or change a mechanical state in response to energy derived from the sensed vibration, strain, temperature, or pressure, wherein the mechanical state of the storage mechanism comprises an indication of a value of the sensed vibration, strain, temperature, or pressure; and communication circuitry configured to wirelessly provide the indication of the value of the sensed vibration, strain, temperature, or pressure upon receipt of one or more interrogation signals. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A device, comprising:
a state-holding sensing device configured to; detect one or more physical parameters of an external system; extract a portion of energy from the one or more physical parameters to be utilized for operation of the state-holding sensing device; store a non-volatile indication of a value of the one or more physical parameters; change from a first mechanical state to a second mechanical state according to the value of the one or more physical parameters; and upon detection of an interrogation signal; if a switch of the state-holding device is in a first state; receive the interrogation signal; and reflect a first quantity of energy of the interrogation signal; if the switch of the state-holding device is in a second state; receive the interrogation signal; reflect a second quantity of energy of the interrogation signal, wherein the second quantity differs from the first quantity and wherein the second quantity energy provides an indication of the value of the one or more physical parameters to an external device; and reset the state-holding sensing device to the first mechanical state based at least in part on the interrogation signal. - View Dependent Claims (18, 19, 20)
Specification