Reduced order thermal modeling of a one-dimensional electrothermally actuated micromirror device

TitleReduced order thermal modeling of a one-dimensional electrothermally actuated micromirror device
Publication TypeConference Paper
Year of Publication2008
AuthorsPal, S., K. Jia, S. Maley, and H. Xie
Conference NameMEMS/MOEMS Components and Their Applications V. Special Focus Topics: Transducers at the Micro-Nano Interface
Date Published01/2008
PublisherSPIE
Conference LocationSan Jose, CA, USA
Abstract

A reduced order thermal model of a one-dimensional (1D) electrothermally actuatedmicromirror device is reported. Thermal bimorphs with integrated Pt resistors are used for generating the angular rotation. Neglecting the temperature variation perpendicular to the length of the bimorphs, a 2D finite element thermal model with 4647 nodes is built. Theaccuracy of the model is verified by comparing the simulation results with thermal imaging data. Using a Krylov subspace based algorithm, a reduced order model is extracted from the finite element model. Results obtained from a reduced model with order >= 5 agree well with finite element results. Hence, a reduced order thermal model that saves computation time and resources without compromising the computation accuracy has been demonstrated. 

URLhttp://spiedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PSISDG00688500000168850B000001&idtype=cvips&gifs=yes&ref=no
DOI10.1117/12.769590