Industrial process power scavenging device and method of deriving process device power from an industrial process
First Claim
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1. A process device comprising:
- a fluid disruption generation element to generate a fluid disruption within process fluid flowing through a pipe associated with an industrial process;
a process variable sensor coupled to the fluid disruption generation element to measure a process parameter;
a power generation element generating an electrical output signal in response to the fluid disruption; and
a power storage component coupled to the power generation element, the power storage component accumulating a charge from the electrical output signal, the power storage element used to power circuitry of the process device with power from the fluid disruption.
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Abstract
In a particular embodiment, a process device includes a fluid disruption generation element to generate a fluid disruption within process fluid flowing through a pipe associated with an industrial process and a process variable sensor coupled to the disruption generation element to measure a process parameter. The process device further includes a power generation element adapted to generate an electrical output signal in response to the fluid disruption and a power storage component coupled to the power generation element. The power storage component is adapted to accumulate a charge based on the electrical output signal.
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Citations
27 Claims
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1. A process device comprising:
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a fluid disruption generation element to generate a fluid disruption within process fluid flowing through a pipe associated with an industrial process; a process variable sensor coupled to the fluid disruption generation element to measure a process parameter; a power generation element generating an electrical output signal in response to the fluid disruption; and a power storage component coupled to the power generation element, the power storage component accumulating a charge from the electrical output signal, the power storage element used to power circuitry of the process device with power from the fluid disruption. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A process device for use in a control or monitoring system associated with an industrial process, the process device comprising:
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a transmitter housing coupled to a pipe carrying a process fluid that is associated with an industrial process; a process variable sensor measuring a process variable associated with the process fluid; a transducer coupled to the process fluid, the transducer generating an electrical output from the process fluid flowing within the pipe; a power storage component coupled to the transducer and storing a charge from the electrical output, and thereby store power generated from the process fluid; and circuitry coupled to the power storage component and to the process variable sensor, the circuitry adapted to receive a power supply from the power storage component and to provide an output signal related to the process variable. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of deriving process device power for a process variable transmitter from an industrial process, the method comprising:
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receiving vibrations related to fluid flow at a transducer of a field device that is coupled to a process fluid within a pipe associated with an industrial process; sensing a process variable based upon the received vibrations; transforming the vibrations into an electrical current via the transducer; accumulating a charge at a power storage element based on the electrical current; sensing a process variable at a process variable sensor associated with the field device; and transmitting data related to the process variable to a control system using a transceiver circuit; powering circuitry of the process device with power generated from the received vibrations accumulated in the power storage element. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification