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Multi-point detection system and method for tightness of mask

A detection system and tightness technology, which is applied in the field of mask tightness multi-point detection system, can solve the problems of unqualified test results, adjustment, mask size, unreasonable structure, etc.

Pending Publication Date: 2022-02-01
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the epidemic, the size and structure of masks produced by many manufacturers were unreasonable, resulting in unqualified test results, but they did not know why they were unqualified. However, the test results could not guide companies to adjust the size or structure of masks in a targeted manner.

Method used

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  • Multi-point detection system and method for tightness of mask
  • Multi-point detection system and method for tightness of mask
  • Multi-point detection system and method for tightness of mask

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Embodiment Construction

[0037] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0038] figure 1 It is a block diagram of a mask tightness multi-point detection system shown according to an exemplary embodiment, such as figure 1 As shown, the system includes:

[0039] Breathing Simulator 1, Aerosol Concentration Detection Device 2, Test Chamber 3, Test Headform 4, Aerosol Generator 8;

[0040] A plurality of particle collection points are set on the test headform 4, and t...

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Abstract

The invention relates to a multi-point detection system and method for the tightness of a mask. The system comprises a respiration simulator, an aerosol generator, aerosol concentration detection devices, a test bin and a head mold for testing; a plurality of particulate matter collection points are arranged on the head mold for testing, and each particulate matter collection point corresponds to one aerosol concentration detection device; after the mask is put into the test bin and worn on the head mold for testing, human respiration is simulated through the respiration simulator, the background concentration of particulate matter entering the testing mask is recorded, then the aerosol generator is started, and when the concentration of the particulate matter in the bin reaches a preset value, the concentration of a first test medium in the test mask corresponding to each particulate matter collection point and the concentration of a second test medium in the test bin are detected through the aerosol concentration detection device corresponding to each particulate matter collection point; and the corresponding tightness according to the background concentration of the particulate matters entering the test mask and the first test medium concentration and the second test medium concentration of each particulate matter collection point aredetermined.

Description

technical field [0001] The invention relates to the technical field of mask detection, in particular to a multi-point detection system and method for mask tightness. Background technique [0002] The tightness of the mask is also called leakage or protective effect, which reflects the degree of fit between the edge of the mask and the user's head and face. The better the fit, the higher the tightness, which is closely related to the structure and size of the mask. . At present, the test equipment and methods are mainly implemented with reference to GB32610-2013 "Technical Specifications for Daily Protective Masks". [0003] At present, there is only one particle collection point and one particle concentration monitoring device in the mask tightness detection system, which are installed at the mouth and nose of the head mold. The test results can only reflect whether the mask tightness is qualified. During the epidemic, the size and structure of masks produced by many manuf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/20
CPCG01M3/20
Inventor 龙啸云刘婉婉叶伟孙启龙
Owner NANTONG UNIVERSITY
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