A pressure parameter extraction device that can work in an ultra-high temperature environment
A parameter extraction and ultra-high temperature technology, applied in the direction of measuring devices, measuring fluid pressure, measuring fluid pressure through electromagnetic components, etc., can solve problems such as limited accuracy and real-time performance, inability to adapt, and limited environmental adaptability, etc., to improve sensitivity Accuracy, high quality factor, small structure size effect
Active Publication Date: 2018-01-30
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology
[0005] The sensor can work in the range of 220°C, and the pressure signal needs to be tested indirectly through the pressure transmission rod. The accuracy and real-time performance are limited, and the measured pressure parameters cannot be accurately represented; Restriction, it needs the external pressure information of the connector, and its environmental adaptability is also limited, and it cannot meet the requirements of ultra-high temperature (>1000°C) work
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Embodiment 1
[0031] figure 2 Shown is a schematic structural diagram of a pressure parameter extraction device according to an embodiment of the present invention, image 3 for figure 2 A cross-sectional view of the structure of the pressure test setup shown. As shown in the figure, a pressure parameter extraction device that can work in an ultra-high temperature environment in this embodiment includes:
[0032] A pressure-sensitive resonant structure and a pressure parameter extraction and transmission antenna placed on the top of the resonant structure;
[0033] The resonant structure includes: an outer wall 201 of high temperature resistant material, a dielectric cylinder 202 and a pressure sensitive diaphragm 203;
[0034] The pressure parameter extraction and transmission antenna includes: a broadband miniature antenna 204, an antenna tuning stub 205 and a coupling slot 206;
[0035] Its structural characteristics are as follows:
[0036] The resonant structure is a closed circ...
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The embodiments of the present invention provide that the present invention relates to the technical field of pressure parameter testing, and specifically relates to a pressure parameter extraction device that can work in an ultra-high temperature environment. The resonant structure is a closed circular resonant cavity surrounded by the resistant Surrounded by a high-temperature material outer wall 201, the bottom of the outer wall 201 is integrated with the medium cylinder 202, and the top of the outer wall 201 is integrated with a layer of the pressure-sensitive medium diaphragm 203, which is closely attached to the pressure sensitive medium diaphragm 203. The broadband micro-antenna 204 for parameter extraction and transmission, the tuning stub 205 and the coupling gap 206 are integrated on the broadband micro-antenna 204; the pressure parameter testing device proposed by the present invention has a simple structure and a smaller structure Size and high pressure sensitivity, the sensitive structure is all composed of passive units, which is more convenient to use special high-temperature resistant materials, and can work in high-temperature environments for a long time.
Description
technical field [0001] The invention relates to the technical field of pressure parameter testing, in particular to a pressure parameter extraction device that can work in an ultra-high temperature environment. Background technique [0002] With the rapid development of my country's aerospace and civil flight technology, key components such as engines have been in an ultra-high temperature (>1000°C) and high pressure environment caused by combustion and high-speed friction with the atmosphere for a long time. In the engine compartment running at high speed or on the surface of the aircraft flying fast in the atmosphere, there is such a special environment formed by the mixture of high temperature and high pressure, and real-time monitoring of the pressure parameters in the high temperature environment is very important for improving the reliability and life of the engine and aircraft. It is of great significance, plays a vital role in the selection of materials and the pr...
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IPC IPC(8): G01L9/16
Inventor 张文强宁曰民年夫顺姜万顺刘金现
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP