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13 March 2019 Experimental investigation of temperature-dependent hysteresis of fishing-line artificial muscle (twisted and coiled polymer fiber) actuator
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Abstract
A fishing-line artificial muscle actuator is typically tested under a constant weight load. This paper reports a new hysteresis phenomenon discovered by changing both load weight and temperature applied to a fishing-line artificial muscle actuator. Obviously the equilibrium position of an actuator changes by load weight. Interestingly, the equilibrium position also largely changes when the actuator is firstly heated and cooled just after exchanging the load weight. In this paper we call this phenomenon as temperature-dependent hysteresis. We have observed that the magnitude of the temperature-dependent hysteresis in the experiment reached the same level as the thermal contraction and was not negligible.
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Hoshito Tanizaki, Kentaro Takagi, Chihaya Oiwa, Ken Masuya, Kenji Tahara, Toshihira Irisawa, Masatoshi Shioya, and Kinji Asaka "Experimental investigation of temperature-dependent hysteresis of fishing-line artificial muscle (twisted and coiled polymer fiber) actuator", Proc. SPIE 10966, Electroactive Polymer Actuators and Devices (EAPAD) XXI, 109660U (13 March 2019); https://doi.org/10.1117/12.2513834
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