Optical pressure measuring apparatus
A technology of measuring device and optical device, which is applied in the direction of fluid pressure measurement, optics and optical components using optical methods, and can solve the problems of bulky and complex optical pressure sensors.
Inactive Publication Date: 2009-02-25
HONG KONG APPLIED SCI & TECH RES INST
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- Description
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Problems solved by technology
However, known optical pressure sensors are rather bulky and complex and require high accuracy processing for pressure measurement
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Abstract
An apparatus comprising an optical cavity for measuring an applied force or pressure, wherein an applied force or pressure is measured or monitored by measuring deformation of said optical cavity when subject to said applied force or pressure.
Description
technical field The present invention relates to force or pressure measuring devices, and more particularly to optically based force or pressure measuring devices. Background of the invention Pressure measurement is important for many applications. For example, pressure measurements are necessary to determine the stress situation, stress distribution or load state of an object or structure. Usually, the pressure measurement is performed by a pressure sensor, which is arranged in contact with the load or pressure source. The physical characteristics of a typical pressure sensor are a function of the pressure acting on the pressure sensor. The pressure sensitive physical properties of a pressure sensor are typically communicated to signal processing circuitry through a wired connection. By addressing changes in the physical properties of the pressure sensor, pressure parameters can be obtained. A piezoelectric (piezoelectric) pressure sensor is probably a well-known tradi...
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IPC IPC(8): G01L1/24G02B1/04H01S3/08
CPCG01L11/02
Inventor 托斯腾·威匹耶斯基
Owner HONG KONG APPLIED SCI & TECH RES INST