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Falling type aerosol concentration sensor calibration test device and method

A concentration sensor and testing device technology, applied in measurement devices, scientific instruments, analysis of suspensions and porous materials, etc., can solve the problems of affecting test results and low testing accuracy of aerosol concentration sensors, and achieve the effect of improving accuracy

Pending Publication Date: 2021-11-16
UNIV OF SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

When the aerosol powder falls in the vertical tube, the concentration is different, which leads to the low test accuracy of the aerosol concentration sensor and affects the test results

Method used

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  • Falling type aerosol concentration sensor calibration test device and method
  • Falling type aerosol concentration sensor calibration test device and method
  • Falling type aerosol concentration sensor calibration test device and method

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Embodiment Construction

[0047] The core of the present invention is to provide a calibration test device for a drop-type aerosol concentration sensor, so as to improve the accuracy of the drop-type aerosol test. Another core of the present invention is to provide a calibration test method for a falling aerosol concentration sensor.

[0048] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] Please refer to Figure 1 to Figure 10 .

[0050] In a specific embodiment, the falling aerosol concentration sensor calibration test device provided by the specific embodiment of the present invention includes an aerosol falling pipeline device 1, an aerosol collecting device 2 and an aerosol generation monitoring device 3, and the aerosol falling pipeline The device 1 includes a powder inlet and air inlet pipeline...

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Abstract

The invention discloses a falling type aerosol concentration sensor calibration test device and method. The falling type aerosol concentration sensor calibration test device comprises an aerosol falling pipeline device, an aerosol collecting device and an aerosol generation monitoring device; the aerosol falling pipeline device comprises a powder and gas inlet pipeline, an aerosol buffer cavity and a powder and gas outlet pipeline which are sequentially arranged in the aerosol flow direction, the aerosol buffer cavity comprises a gas inlet cavity and a gas outlet cavity which are arranged in the aerosol flow direction, and the cavity sectional area of the gas inlet cavity is gradually increased in the aerosol flow direction; the cavity sectional area of the gas outlet cavity is gradually reduced along the flow direction of the aerosol; the aerosol collecting device is connected with a gas outlet of the powder and gas outlet pipeline; and the aerosol generation monitoring device is connected with the aerosol falling pipeline device. According to the invention, the accuracy of the drop type aerosol concentration test is improved.

Description

technical field [0001] The invention relates to the technical field of aerosol test calibration, in particular to a calibration test device for a drop-type aerosol concentration sensor. The invention also relates to a calibration test method for a drop-type aerosol concentration sensor. Background technique [0002] Powder flow widely exists in industrial sectors such as energy, chemical industry, and metallurgy, as well as various fields such as meteorology and aerospace. Various powder flow parameter detection instruments developed based on optical principles are widely used in various industries and regions because of their wide measurement range and strong real-time performance. During the development and application of aerosol concentration detection instruments, in order to make the measurement results meet the accuracy requirements, concentration calibration must be carried out. [0003] During the calibration process of the aerosol powder concentration, the aerosol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/06
Inventor 张和平马伟通陆松
Owner UNIV OF SCI & TECH OF CHINA
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