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PCB (printed circuit board) micro-pressure sensor isolation box

A micro-pressure sensor and isolation box technology, applied in instruments, measuring fluid pressure, measuring fluid pressure by changing ohmic resistance, etc., can solve the problems of inaccurate measurement, poor adaptability, and high early product failure rate, and achieve extended use. Longevity, the effect of ensuring measurement accuracy and stability

Inactive Publication Date: 2015-02-18
CRRC ZIYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, this type of product has poor adaptability to moisture, dust, and corrosive gases (such as coal mine gas, blast furnace gas, etc.), resulting in inaccurate measurement, poor stability, and high early failure rate of products

Method used

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  • PCB (printed circuit board) micro-pressure sensor isolation box

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0016] Such as figure 1 As shown, a PCB micro-pressure sensor isolation box, the isolation box is provided with a sealed anti-corrosion micro-pressure transmission medium, which isolates the isolation box into two spaces, one side is connected to ...

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Abstract

The invention provides a PCB (printed circuit board) micro-pressure sensor isolation box. A sealing anticorrosion micro-pressure transfer medium is arranged in the isolation box which is isolated into two spaces, a PCB micro-pressure sensor is connected to one side of the isolation box, and a measured medium is connected to the other side of the isolation box. By the arrangement, the harmful medium measured is prevented from directly contacting with the PCB micro-pressure sensor, the problem about adaptability of the PCB micro-pressure sensor under the micro-pressure measuring conditions of moisture, dust and corrosive gas is solved, the measuring accuracy and stability of products are guaranteed, and service life is greatly prolonged.

Description

technical field [0001] The invention relates to a PCB micro-pressure sensor isolation box, in particular to a PCB micro-pressure sensor isolation box for process gas pressure measurement. Background technique [0002] The PCB-packaged piezoresistive pressure sensor produced by silicon micromachining technology has the characteristics of good linearity, high precision, micro-range, and low cost. It has been widely used in the micro-pressure measurement of air or non-corrosive gases. [0003] However, such products have poor adaptability to moisture, dust, and corrosive gases (such as coal mine gas, blast furnace gas, etc.), resulting in inaccurate measurement, poor stability, and high early failure rate of products. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a PCB micro-pressure sensor isolation box with strong adaptability. [0005] The technical scheme adopted in the present invention is as follows: a PCB ...

Claims

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Application Information

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IPC IPC(8): G01L19/06G01L9/06
Inventor 庞国斌
Owner CRRC ZIYANG CO LTD
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