Pressurized gas to electrical energy conversion for low-power field devices
First Claim
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1. A power supply module for generating electricity in a field device, the module comprising:
- a support structure coupleable to a source of pressurized gas, the support structure adapted to direct the pressurized gas;
a flexure mounted relative to the support structure, the flexure including a cantilever structure having one end that oscillates in response to gas flow;
an electrical conductor positioned on the flexure proximate the cantilever end and being electrically couplable to components within the field device;
a magnetic field disposed proximate the cantilever end such that oscillation of the cantilever end generates electricity in the conductor; and
an energy storage device electrically coupled to a trace, wherein both, the energy storage device and the trace are located within the module.
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Abstract
An industrial process field device with improved power generation is provided. The process device can be a process variable transmitter, process actuator, or any other suitable field device. The field device includes a wireless transceiver that transceives information related to the process via a wireless medium. A power supply within the field device is couplable to a source of pressurized gas and generates motion within the power supply that is translated into electrical energy. This electrical energy is then used to operate the field device.
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Citations
33 Claims
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1. A power supply module for generating electricity in a field device, the module comprising:
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a support structure coupleable to a source of pressurized gas, the support structure adapted to direct the pressurized gas; a flexure mounted relative to the support structure, the flexure including a cantilever structure having one end that oscillates in response to gas flow; an electrical conductor positioned on the flexure proximate the cantilever end and being electrically couplable to components within the field device; a magnetic field disposed proximate the cantilever end such that oscillation of the cantilever end generates electricity in the conductor; and an energy storage device electrically coupled to a trace, wherein both, the energy storage device and the trace are located within the module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A power supply module for generating electricity in a field device, the module comprising:
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a support structure coupleable to a source of pressurized gas, the support structure adapted to direct the pressurized gas; a flexure mounted relative to the support structure, the flexure including a cantilever structure having one end that oscillates in response to the directed pressurized gas flow; and
a piezoelectric material mounted relative to the cantilever end such that oscillation of the cantilever end generates electricity from the piezoelectric material, the piezoelectric material being electrically coupleable to components within the field device; andan energy storage device coupled to the piezoelectric material, wherein both, the energy storage device and the piezoelectric material are located within the module. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification