Autonomous MEMS Inclinometer

Pull-in voltage measurements are used in this work as the transduc-tion mechanism to build a novel microelectromechanical system (MEMS) incli-nometer. By successively bringing the microstructure to pull-in while measur-ing the pull-in voltage allows the detection of external accelerations. Moreover,...

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Detalhes bibliográficos
Autor principal: Alves, F. S. (author)
Outros Autores: Dias, Rosana A. (author), Cabral, Jorge (author), Rocha, Luís A. (author)
Formato: conferencePaper
Idioma:eng
Publicado em: 2012
Assuntos:
Texto completo:http://hdl.handle.net/1822/21192
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/21192
Descrição
Resumo:Pull-in voltage measurements are used in this work as the transduc-tion mechanism to build a novel microelectromechanical system (MEMS) incli-nometer. By successively bringing the microstructure to pull-in while measur-ing the pull-in voltage allows the detection of external accelerations. Moreover, the availability of asymmetric pull-in voltages that depend on the same mechan-ical structure and properties enables the implementation of an auto-calibrated thermal compensated inclinometer. The thermal compensation method is de-scribed and it relies on the measurement of pull-in voltages only. Both simulations and experiments are used to validate this novel approach and first results show a sensitivity of 50mV/º and a resolution of 0.006º