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dc.contributor.authorJaber, Nizar
dc.contributor.authorIlyas, Saad
dc.contributor.authorShekhah, Osama
dc.contributor.authorEddaoudi, Mohamed
dc.contributor.authorYounis, Mohammad I.
dc.date.accessioned2018-10-09T13:11:53Z
dc.date.available2018-10-09T13:11:53Z
dc.date.issued2018-10-04
dc.identifier.citationJaber N, Ilyas S, Shekhah O, Eddaoudi M, Younis MI (2018) Multimode Excitation of a Metal Organics Frameworks Coated Microbeam for Smart Gas Sensing and Actuation. Sensors and Actuators A: Physical. Available: http://dx.doi.org/10.1016/j.sna.2018.10.004.
dc.identifier.issn0924-4247
dc.identifier.doi10.1016/j.sna.2018.10.004
dc.identifier.urihttp://hdl.handle.net/10754/628916
dc.description.abstractSmart sensing systems suffer complexity requiring interface circuits, microcontrollers, switches, and actuators to detect and sense, process the signal and take a decision, and trigger an action upon demand. This increases the device footprint and boosts significantly the power required to actuate the system. Here, we present a hybrid sensor and switch device, which is capable of accurately measuring gas concentration and perform switching when the concentration exceeds specific (safe) threshold. The device is based on a clamped-clamped microbeam coated with metal-organic frameworks (MOFs). Using the electrostatic harmonic voltage, we employ dynamic multi-modal actuation in which the microbeam is simultaneously excited at the first mode of vibration, near the pull-in band, and at the third mode. We demonstrate experimentally the effectiveness of this technique in measuring the concentration of water vapor and achieving switching when the concentration exceeds a threshold value. In contrast to the first mode operation, we show that monitoring the third mode enhances sensitivity, improves accuracy, and lowers the sensor sensitivity to noise.
dc.description.sponsorshipWe acknowledge financial support from King Abdullah University of Science and Technology.
dc.publisherElsevier BV
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0924424718310550
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Sensors and Actuators A: Physical. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Sensors and Actuators A: Physical, [, , (2018-10-04)] DOI: 10.1016/j.sna.2018.10.004 . © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleMultimode Excitation of a Metal Organics Frameworks Coated Microbeam for Smart Gas Sensing and Actuation
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Science Program
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalSensors and Actuators A: Physical
dc.eprint.versionPost-print
kaust.personJaber, Nizar
kaust.personIlyas, Saad
kaust.personShekhah, Osama
kaust.personEddaoudi, Mohamed
kaust.personYounis, Mohammad I.
refterms.dateFOA2018-10-09T13:27:32Z
dc.date.published-online2018-10-04
dc.date.published-print2018-11


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