Fluid pressure sensor based on elastic manometry
A fluid pressure and sensor technology, applied in the direction of fluid pressure measurement by changing ohmic resistance, can solve the problems of complex structure, high cost and easy damage of the pressure sensitive module, and achieve the effects of simple structure, long service life and low cost
Inactive Publication Date: 2016-03-30
广东天赢星光科技股份有限公司 +1
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Problems solved by technology
However, the structure of the pressure sensitive module of the fluid pressure sensor in the prior art is complex, resulting in higher cost and easy damage of the fluid pressure sensor in the prior art
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[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0020] Such as figure 1 , figure 2 with image 3 As shown, the fluid pressure sensor based on elastic pressure measurement in this embodiment includes a housing 1 composed of an upper shell 11 and a lower shell 12. The upper end of the upper shell 11 is provided with a lead hole 111, and the inner cavity of the upper shell 11 is provided with a circuit. The board 2, the power signal cable 21 of the circuit board 2 is passed through the lead hole 111; There is a metal shrapnel assembly 3, the metal shrapnel assembly 3 is composed of a frame 31 and an elastic deformation sheet 32 fixed on the frame 31, the upper part of the elastic deformation...
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The invention discloses a flexible pressure measuring based fluid pressure sensor. The flexible pressure measuring based fluid pressure sensor comprises a shell composed of an upper shell and a lower shell. The upper end of the upper shell is provided with a lead hole, a circuit board is arranged in an inner cavity of the upper shell, a power source signal cable of the circuit board is penetratingly arranged in the lead hole, the lower end of the lower shell is provided with a fluid passage, the fluid passage is communicated with an inner cavity of the lower shell, and a metal elastic piece component is arranged in the inner cavity of the fluid passage. The metal elastic piece component is composed of a frame and an elastic deformation piece fixed on the frame, a resistance strain gauge is arranged on the upper portion of the elastic deformation piece, the resistance strain gauge is electrically connected with the circuit board, and an elastic membrane is arranged between the metal elastic piece component and the fluid passage and in the lower shell. The flexible pressure measuring based fluid pressure sensor has the advantages of high pressure detection accuracy, wide application range, simple structure, low cost and long service life.
Description
technical field [0001] The invention relates to the field of sensor equipment, in particular to a fluid pressure sensor based on elastic pressure measurement. Background technique [0002] Fluid pressure sensor is a professional detection equipment used to detect fluid pressure. Its structure usually includes a housing, a pressure sensitive module and an amplifying circuit located in the housing. However, the structure of the pressure sensitive module of the fluid pressure sensor in the prior art is complex, resulting in high cost and easy damage of the fluid pressure sensor in the prior art. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fluid pressure sensor based on elastic pressure measurement with high pressure detection precision, wide application range, simple structure, low cost and long service life. [0004] In order to solve the problems of the technologies described above, the technical solution a...
Claims
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IPC IPC(8): G01L9/04
Inventor 刘剑飚
Owner 广东天赢星光科技股份有限公司