Smart Gas Sensing and Actuation Using Multimode of a MOFs Coated Microbeam
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Chemical Science Program
Functional Materials Design, Discovery and Development (FMD3)
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Online Publication Date2019-01-18
Print Publication Date2018-10
Permanent link to this recordhttp://hdl.handle.net/10754/631243
MetadataShow full item record
AbstractSmart sensing systems suffers 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 metalorganic 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 a single mode operation, we show that employing multi-modal excitation enhances sensitivity, improves accuracy, and strengthen noise immunity.
CitationJaber N, Ilyas S, Shekhah O, Eddaoudi M, Younis MI (2018) Smart Gas Sensing and Actuation Using Multimode of a MOFs Coated Microbeam. 2018 IEEE SENSORS. Available: http://dx.doi.org/10.1109/ICSENS.2018.8589701.
Journal2018 IEEE SENSORS
Conference/Event name17th IEEE SENSORS Conference, SENSORS 2018