Alcohol content tester with automatic calibration function and automatic calibration method thereof
An automatic calibration and detector technology, which is applied in the field of alcohol detectors, can solve the problems of detection accuracy and accuracy, and achieve the effect of automatic calibration, automatic calibration and calibration operations, and avoiding repeated calibration operations
Active Publication Date: 2017-10-24
HENAN HANWEI ELECTRONICS
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Problems solved by technology
[0004] The purpose of the present invention is to address the deficiencies of the prior art, to provide an alcohol detector with automatic calibration function, which solves the problem that the detection accuracy and accuracy of the alcohol detector are affected after repeated use
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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following clearly and completely describes the technical solutions in the embodiments of the present invention.
[0026] Such as figure 1 As shown, an alcohol detector with automatic calibration function includes a breath alcohol content detection unit, the breath alcohol content detection unit includes a controller and a gas collection channel, and the alcohol detector also includes calibration gas storage and calibration control unit, the standard gas storage and calibration control unit includes an alcohol standard gas bottle, a pressure reducing valve, a solenoid valve and an air guide tube; the gas output port of the alcohol standard gas bottle is sequentially provided with the pressure reducing valve and the solenoid valve, The air guide tube communicates with the solenoid valve and the gas collection channel of the breath alcohol content de...
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The invention particularly relates to an alcohol content tester with an automatic calibration function and an automatic calibration method thereof. The tester comprises an exhaled air alcohol content testing unit and a standard air storage and calibration control unit, wherein the exhaled air alcohol content testing unit comprises a controller and an air collection passage; the standard air storage and calibration control unit comprises an alcohol standard air cylinder, a pressure reducing valve, an electromagnetic valve and an air guiding pipe; the pressure reducing valve and the electromagnetic valve are sequentially arranged at the air outlet of the alcohol standard air cylinder; the air guiding pipe is communicated with the electromagnetic valve and the air collection passage of the exhaled air alcohol content testing unit; the exhaled air alcohol content testing unit further comprises a clock chip used for timing the automatic calibration time interval; and the clock chip is connected with the controller. The calibration method comprises the following steps: performing calibration testing determination when the automatic calibration time interval is reached, and performing calibration correction operation according to the determination result.
Description
technical field [0001] The invention relates to an alcohol detector, in particular to an alcohol detector with an automatic calibration function and an automatic calibration method thereof. Background technique [0002] Pre-employment alcohol concentration detection is crucial to maintaining the safety of life and property of the company and individuals. For example, in industries such as coal mines, transportation, and metallurgical mining, employees who work after drinking alcohol may cause great harm to others and society. Companies in this type of industry are generally large in scale and have a large number of employees. When conducting pre-employment alcohol testing, thousands or even tens of thousands of employees need to be tested every day. After a general alcohol detector is used for a certain number of times, its core component, the alcohol sensor, will degrade, causing deviations in the results of the alcohol test and greatly reducing the quality of the alcohol...
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IPC IPC(8): G01N33/497G05B19/042
CPCG05B19/0423G01N33/4972Y02T10/30
Inventor 高锋冯建超毕小乐
Owner HENAN HANWEI ELECTRONICS