TY - JOUR
T1 - Self-sensing of deflection, force, and temperature for joule-heated twisted and coiled polymer muscles via electrical impedance
AU - Van Der Weijde, Joost
AU - Smit (student), B.
AU - Fritschi, Michael
AU - Van De Kamp, Cornelis
AU - Vallery, Heike
N1 - Accepted Author Manuscript
PY - 2017
Y1 - 2017
N2 - The recently introduced twisted and coiled polymer muscle is an inexpensive and lightweight compliant actuator. Incorporation of themuscle in applications that rely on feedback creates the need for deflection and force sensing. In this paper, we explore a sensing principle that does not require any bulky or expensive additional hardware: Self-sensing via electrical impedance. To this end, we characterize the relation between electrical impedance on the one hand, and deflection, force, and temperature on the other hand for the Joule-heated version of this muscle. Investigation of the theoretical relations provides potential fit functions that are verified experimentally. Using these fit functions results in an average estimation error of 0.8%, 7.6%, and 0.5%, respectively, for estimating deflection, force, and temperature. This indicates the suitability of this self-sensing principle in the Joule-heated twisted and coiled polymer muscle.
AB - The recently introduced twisted and coiled polymer muscle is an inexpensive and lightweight compliant actuator. Incorporation of themuscle in applications that rely on feedback creates the need for deflection and force sensing. In this paper, we explore a sensing principle that does not require any bulky or expensive additional hardware: Self-sensing via electrical impedance. To this end, we characterize the relation between electrical impedance on the one hand, and deflection, force, and temperature on the other hand for the Joule-heated version of this muscle. Investigation of the theoretical relations provides potential fit functions that are verified experimentally. Using these fit functions results in an average estimation error of 0.8%, 7.6%, and 0.5%, respectively, for estimating deflection, force, and temperature. This indicates the suitability of this self-sensing principle in the Joule-heated twisted and coiled polymer muscle.
KW - Artificial muscle
KW - compliant actuator
KW - deflection
KW - impedance
KW - inductance
KW - integrated sensing
KW - selfsensing
UR - http://resolver.tudelft.nl/uuid:d09afa8c-0d6a-42c0-8e0f-6d2326aea03b
UR - http://www.scopus.com/inward/record.url?scp=85026753205&partnerID=8YFLogxK
U2 - 10.1109/TMECH.2016.2642588
DO - 10.1109/TMECH.2016.2642588
M3 - Article
AN - SCOPUS:85026753205
SN - 1083-4435
VL - 22
SP - 1268
EP - 1275
JO - IEEE - ASME Transactions on Mechatronics
JF - IEEE - ASME Transactions on Mechatronics
IS - 3
ER -