One-dimensional contact mode interdigitated center of pressure sensor

Tian-Bing Xu; Guerreiro, Nelson; Hubbard, James; Jin Ho Kang; Park, Cheol; Harrison, Joycelyn
June 2009
Applied Physics Letters;6/8/2009, Vol. 94 Issue 23, p233503
Academic Journal
A one-dimensional contact mode interdigitated center of pressure sensor (CMIPS) has been developed. The experimental study demonstrated that the CMIPS has the capability to measure the overall pressure as well as the center of pressure in one dimension simultaneously. A theoretical model for the CMIPS is established here based on the equivalent circuit of the configuration of the CMIPS as well as the material properties of the sensor. The experimental results match well with theoretical modeling predictions. A system mapped with two or more pieces of the CMIPS can be used to obtain information from the pressure distribution in multidimensions.


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