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SHAPE MEMORY ALLOY ACTUATOR WITH STRAIN GAUGE SENSOR AND POSITION ESTIMATION AND METHOD FOR MANUFACTURING SAME
SHAPE MEMORY ALLOY ACTUATOR WITH STRAIN GAUGE SENSOR AND POSITION ESTIMATION AND METHOD FOR MANUFACTURING SAME
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机译:具有应变仪的形状记忆合金致动器和位置估计及其制造方法
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摘要
A shape memory actuator including: a monolithic shape memory alloy; a shape memory effect (SME) section of the alloy, configured for actuation; a pseudo-elastic (PE) section of the alloy, configured as a sensor for enabling position sensing; and a control system configured to control the actuator by controlling a current through at least the SME section based on the sensor results of the PE section. A method of controlling a shape memory actuator, the method including: applying a predetermined current through the actuator; measuring a first resistance of the SME section; measuring a second resistance of the PE section; calculating an estimated position of the actuator based on the first and second resistances; and adapting the current applied to the actuator based on the estimated position. A method of manufacturing a shape memory actuator, the method including: laser processing; thermomechanically treating; and training the shape memory alloy.
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