Gas sampling method for alcohol detector in breathing gas

A technology of gas sampling and breathing gas, which is applied in the field of detectors, can solve problems such as the uncertainty of deep lung gas judgment, and achieve the effects of easy implementation, accurate sampling, and guaranteed accuracy

Inactive Publication Date: 2010-01-27
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uncertainty in the judgment of deep lung air in this practice

Method used

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  • Gas sampling method for alcohol detector in breathing gas
  • Gas sampling method for alcohol detector in breathing gas
  • Gas sampling method for alcohol detector in breathing gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The tubular gas sampling device 2 is implemented as image 3 As shown, the main body 20 of the sampling tube, the exhaust branch 28 and the air intake branch 27 can be processed and formed with plastics. The excitation coil 23 is wound by an enameled wire of appropriate diameter, and is as close as possible to the tongue 26 . The iron core ring 25 is located in the middle of the excitation coil 23 and closely cooperates with the intake and exhaust pipelines 27 and 28 . There is a 1mm thick permanent magnet sheet inside the tongue piece 26, which is covered with elastic rubber. The NS polarity is related to the current flow direction in the coil, and the setting depends on the direction of the coil current. The light spring 24 is in an elastic state, and one end is against the tongue 26, and the other end is connected with the center point of the spring support 22 with air holes. The intake pipe 29 is a thinner conduit connected to the sensor 6 . Air intake branch 27 ...

Embodiment 2

[0072] Micro gas sampling device 2 is implemented as image 3 As shown, the main body 20 of the sampling tube, the exhaust branch 28 and the air intake branch 27 can be processed and formed with non-magnetic materials such as plastics. The excitation coil 23 is wound by an enameled wire of appropriate diameter, and is as close as possible to the tongue 26 . The iron core ring 25 is located in the middle of the excitation coil 23 and closely cooperates with the exhaust pipeline. There is a 0.5mm thick permanent magnet sheet inside the tongue piece 26, covered with elastic rubber. The light spring 24 is in an elastic state, and one end is against the tongue 26, and the other end is connected with the center point of the spring support 22 with air holes. The intake pipe 29 is a thinner conduit connected to the sensor 6 . The bypass is separated from the inlet pipe 29 by the serpentine thin flow passage, and this bypass structure makes 1% gas enter the sensor 6; the tongue 26 r...

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Abstract

The present invention relates to an air sampling method of detector for detecting alcohol content in respiratory air. It is a low power consumption air sampling method by making tester blow air to implement sampling operation. Said method includes: (a), accurate proportional air-distributing type fixed volume air sampling method; and (b), sampling method capable of using blowing flow to make judgment and ensuring collection of deep air of lung. The invented air sampling device adopts a unique tongue plate structure.

Description

technical field [0001] The invention relates to the technical field of detectors, in particular to a gas sampling method for detecting alcohol content in breathing gas. Background technique [0002] The degree of drunkenness is directly related to the alcohol content in the blood. The BAC value, which is the milligrams of alcohol per 100 milliliters of blood, is used internationally as the standard for assessing the degree of drunkenness. According to the test, when the driver's BAC is 50mg / 100mL, he will be happy and have a sense of ecstasy, and traffic accidents may occur; In order to reduce traffic accidents, many countries have made relevant legislation on drivers drinking alcohol. The literature (R.E.Mann et al. Accident Analysis and Prevention 33(2001) 569-583) has made a more detailed introduction to the situation of each country. For example, in the United States (most states) BAC 100mg / 100mL is the penalty standard. Britain and Canada take 80mg / 100mL as the stan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/36G01N27/00A61B5/00
Inventor 孙公权孙伟
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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