Scale effects and thermal considerations for micro-actuators

J. Peirs, D. Reynaerts, H. Van Brussel
Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146)  
This paper analyses scale effects for actuator types which are strong candidates for micro-actuation: shape memory alloys (SMAS), electrostatic, electromagnetic and piezoelectric actuators. SMA actuators are studied in detail and compared to the other actuator types on a basis of force, response time, and power densi~. Much of the analysis is based on thermal aspects and scaling effects on both convective and conductive heat transfer, which is a quite novel approach. Results of this thermal
more » ... ysis are effects on su~ace temperature and maximum current density of micro-actuators.
doi:10.1109/robot.1998.677333 dblp:conf/icra/PeirsRB98 fatcat:ugvki2miwbajpf3qoo2yybbybq