Apparatus for cost effective wireless actuator using SMA and MRC
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United States of America Patent
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Oct 3, 2017
Issued Date -
N/A
app pub date -
Jan 14, 2015
filing date -
Jan 14, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for wirelessly controlling a shape memory alloy (SMA) actuator using magnetic resonant coupling (MRC). The SMA actuator is part of a receiver circuit including an actuator coil, where the SMA actuator is configured into a certain shape. The system includes a transmitter circuit having a transmitter coil and a controller, where the transmitter coil receives an AC current that causes the transmitter coil to generate an oscillating magnetic field in resonance with the actuator coil in the receiver circuit and be magnetically coupled thereto. The current induced in the actuator coil creates heat that reconfigures the SMA actuator to provide the actuation.
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International Classification(s)
- B23Q:DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TO....
- H02J:CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR D....
- H02N:ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- G01R:MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC V....
- H01F:MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF M....
- F03G:SPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICA....
- B60L:ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-P....
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