Experimental verification of disturbance compensation control of linear resonant actuator

Issue title: Proceedings from the 17th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2015)

Guest editors: Fumio Kojima, Futoshi Kobayashi and Hiroyuki Nakamoto

Article type: Research Article

Authors: Kato, Masayuki^* | Hirata, Katsuhiro | Asai, Yasuyoshi

Affiliations: Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Yamadaoka, Suita, Osaka, Japan

Correspondence: [*] Corresponding author: Masayuki Kato, Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan. E-mail:masayuki.kato@ams.eng.osaka-u.ac.jp

Abstract: Linear resonant actuators (LRAs) have been used in a wide range of applications because of their high efficiency. However, the amplitude of LRAs severely decreases when external loads are applied. As a solution to this problem, this paper proposes a disturbance compensation control using sensor-less load estimation. First, we propose a load device which is able to evaluate the dynamic characteristics of an actual LRA mounted on an electric shaver. Next, we verify the effectiveness of the proposed control through measurement using 1-mover LRA and voice coil motor. As a result, measurement using this load device validates the effectiveness of the proposed control.

Keywords: Linear resonant actuator, load estimation, disturbance, compensation control, load device

DOI: 10.3233/JAE-162220

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 52, no. 3-4, pp. 1637-1646, 2016