Computation of Static Shapes and Voltages for Micromachined Deformable Mirrors With Nonlinear Electrostatic Actuators  

Oleh:

Wang, P. K. C. ; Hadaegh, F. Y.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Microelectro Mechanical System vol. 5 no. 3 (1996), page 205-220.
Topik: ACTUATORS; computation; static shapes; voltages; micro machine; mirrors; non linear; electrostatic; actuators

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ30.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

In modeling micromachined deformable mirrors with electrostatic actuators whose gap spacings are of the same order of magnitude as those of the surface deformations, it is necessary to use nonlinear models for the actuators. In this paper, we consider micromachined deformable mirrors modeled by a membrane or plate equation with nonlinear electrostatic actuator characteristics. Numerical methods for computing the mirror deformation due to given actuator voltages and the actuator voltages required for producing the desired deformations at the actuator locations are presented. The application of the proposed methods to circular deformable mirrors whose surfaces are modeled by elastic membranes is discussed in detail. Numerical results are obtained for a typical circular micromachined mirror with electrostatic actuators.

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