Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.sna.2012.10.031
Title: Transparent force sensing arrays with low power consumption using liquid crystal arrays
Authors: Huang, C.-Y.
Lou, L.
Danner, A.J. 
Lee, C. 
Keywords: Force sensor
Liquid crystals
Tactile sensor
Transparent
Issue Date: 2013
Source: Huang, C.-Y., Lou, L., Danner, A.J., Lee, C. (2013). Transparent force sensing arrays with low power consumption using liquid crystal arrays. Sensors and Actuators, A: Physical 190 : 136-140. ScholarBank@NUS Repository. https://doi.org/10.1016/j.sna.2012.10.031
Abstract: A transparent force sensing array with low power consumption is developed from a 3 × 3 liquid crystal (LC) array. As force is applied to the LC array, the force-dependent capacitance curve of a sensor pixel under a higher voltage will shift to larger capacitance. Accordingly, the force range of the LC array 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. The sensing array measures force in terms of the voltage-to-capacitance number. The transparent force sensing array shows potential as a touch panel, while it is immune to the need of rectifying the nonlinear relation between the applied force and the output capacitance using complex algorithm via high-end microcontrollers. © 2012 Elsevier B.V. All rights reserved.
Source Title: Sensors and Actuators, A: Physical
URI: http://scholarbank.nus.edu.sg/handle/10635/57708
ISSN: 09244247
DOI: 10.1016/j.sna.2012.10.031
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