Patent ID: 6122972
Filing Date: 2000-09-26
Classification: G01L

Abstract:
A pressure sensor comprising:(a) a first conductive surface electrically isolated from a second conductive surface;(b) a dielectric material interposed between said first conductive surface and said second conductive surface;(c) said dielectric material being movable with respect to at least one of said first conductive surface and said second conductive surface in response to a change in pressure exerted on said pressure sensor;(d) a measurement system connected to at least one of said first conductive surface and said second conductive surface to measure the capacitance between said first conductive surface and said second conductive surface representative of said pressure; andwherein said first conductive surface and said second conductive surface are nonparallel with respect to each other, so that the distance between said first and second conductive surfaces at one location is different from the distance between said first and second conductive surfaces at another location.