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Title: Calibration-free force sensors using liquid crystal arrays
Authors: Huang, C.-Y.
Lou, L.
Lee, C. 
Issue Date: 2012
Citation: Huang, C.-Y.,Lou, L.,Lee, C. (2012). Calibration-free force sensors using liquid crystal arrays. Proceedings of IEEE Sensors : -. ScholarBank@NUS Repository.
Abstract: A capacitive force sensor is developed from a liquid crystal (LC) array. Experimental result shows that the force-dependent capacitance curve shifts to larger capacitance with increasing applied voltage. Accordingly, the force range of the sensor can be divided into many sub-ranges at one of the capacitance values. The number of the input voltage is equal to that of the output capacitance in each of the sub-ranges, and the voltage-to-capacitance number is small (large) in the high (low)-force sub-range. This sensor measures force by the voltage-to-capacitance number and avoids a need to create a function for transferring the capacitance into the force. © 2012 IEEE.
Source Title: Proceedings of IEEE Sensors
ISBN: 9781457717659
DOI: 10.1109/ICSENS.2012.6411444
Appears in Collections:Staff Publications

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