Patent ID: 8671765
Filing Date: 2014-03-18
Classification: G01L

Abstract:
1. A pressure sensor comprising: a substrate; a differential pressure diaphragm provided in the center portion of the substrate; a differential pressure gauge provided on the differential pressure diaphragm; a single static pressure diaphragm provided in the outer peripheral portion of the differential pressure diaphragm; a first static pressure gauge formed on an edge portion of the static pressure diaphragm; and a second static pressure gauge formed on a center portion of the static pressure diaphragm, wherein the substrate is formed in a circular or polygonal shape; wherein the single static pressure diaphragm is formed in an annular shape encompassing the differential pressure diaphragm, wherein the first static pressure gauge is formed on a first imaginary line passing through a center of the substrate, and wherein the second static pressure gauge is formed on a second imaginary line passing through the center of the substrate, the second imaginary line being perpendicular to the first imaginary line.