Capacitive Micromachined Ultrasonic Transducers (CMUTs) are used to receive and transmit ultrasonic waves. The device is constructed from many small, in the order of microns, circular membranes, which are connected in parallel. In this paper, static voltage analysis of CMUT has been modeled and described. The membrane displacement with respect to various parameters such as radius, membrane thickness, gap thickness and applied static bias has been analyzed. By consideration of Mason's analysis, the equation of motion of membrane under tension has been discussed. The graphical results support the theoretical modeling of the CMUT cell.
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