Study on sinusoidal estimation deviation of electrostatic actuated MEMS mirror torsion angle Jingang LI, Ye HE, Shijun YUAN, Dayong QIAO, Deshui YU and Zhiyuan LI JNWPU, 41 2 (2023) 338-343 Published online: 07 June 2023 DOI: 10.1051/jnwpu/20234120338