Nonlinear-Based Switch Triggered by Gas Using Electrostatically Actuated Microbeams

Adam M. Bouchaala, Nizar Jaber, Omar Yassine, Osama Shekhah, Mohamed Eddaoudi, Mohammad I. Younis

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The objective of this paper is to demonstrate the integration of a MOF thin film on electrostatically actuated microstructures to realize a switch triggered by gas and a sensing algorithm based on amplitude tracking. The devices are based on the nonlinear response of micromachined clamped-clamped beams. The microbeams are coated with a Metal-Organic Framework (MOF), namely HKUST-1 to achieve high sensitivity. The softening and hardening nonlinear behaviors of the microbeams are exploited to demonstrate the ideas. For gas sensing, an amplitude-based tracking algorithm is developed to quantify the captured quantity of gas. Then, a MEMS switch triggered by gas using the nonlinear response of the microbeam is demonstrated. Noise analysis is conducted, which shows that the switch has high stability against thermal noise. The proposed switch is promising for delivering binary sensing information, and also can be used directly to activate useful functionalities, such as alarming.
Original languageEnglish (US)
Title of host publicationVolume 4: 21st Design for Manufacturing and the Life Cycle Conference; 10th International Conference on Micro- and Nanosystems
PublisherAmerican Society of Mechanical Engineers
ISBN (Print)9780791850145
StatePublished - Dec 5 2016


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