Pressure difference sensor for providing a pressure measurement signal
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United States of America Patent
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Oct 29, 2019
Grant Date -
Feb 1, 2018
app pub date -
Jul 18, 2017
filing date -
Jul 29, 2016
priority date (Note) -
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Abstract
A pressure difference sensor for providing a pressure measurement signal, comprising: a pressure difference measuring cell, which is suppliable with first and second pressures and which outputs the pressure measurement signal; first and second ceramic stiffening elements, each of which is joined with the pressure difference measuring cell and has a duct, via which the first, respectively the second, pressure is suppliable to the pressure difference measuring cell; a platform with first and second pressure input openings, each of which extends from a first surface to a second surface of the platform, wherein the pressure input openings are sealed on the first surface, each with its own isolating diaphragm, and first and second pressures tubes, which are arranged between the stiffening elements and the platform, and wherein each of the first pressure tube and the second pressure tube has at least one bend in a region between the platform and a first, respectively second, connecting area of the corresponding pressure tube.
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