Portable oxygen content quick detector

Abstract

The invention discloses a portable oxygen content quick detector, which belongs to the field of photoelectricity. The portable oxygen content quick detector comprises an LED (Light Emitting Diode) light source group and a detection window, wherein the LED light source group is connected with a collimating mirror; a collimating system is arranged in the LED light source group; an air inlet and an air outlet are arranged above the detection window; four attaching clamps and a photoelectric conversion device are arranged in the detection window; the photoelectric conversion device is connected with a galvanometer; the detection window is subjected to shading treatment; a membrane sensor is a detection membrane which contains hemoglobin; the membrane sensor is fixed on a white backboard through the attaching clamps, and ray is reflected to the photoelectric conversion device. According to the portable oxygen content quick detector disclosed by the invention, detection cost is greatly lowered, in addition, a complex step of the oxygen content measurement of a traditional method is avoided, oxygen contents can be quickly and accurately measured, and in addition, pollution caused to environment by chemical reagent in a traditional method is avoided.

Description

Technical field [0001] The invention relates to the field of optoelectronics, in particular to a portable oxygen content rapid gas detection instrument that adopts photoelectric conversion to quickly detect the oxygen content in the gas. Background technique [0002] In chemistry and chemical industry and many other fields, oxygen content is an important indicator, so portable oxygen detection devices are widely used in the construction safety inspection of petroleum, chemical industry, gas, coal, metallurgy, electric power, municipal administration, telecommunications and traffic tunnels. By detecting whether the oxygen content meets the breathing requirements of the personnel, it is determined whether the on-site personnel need an air respirator. However, the existing oxygen content detection devices are not only expensive, but most of them are cumbersome to use, such as yellow phosphorescence method, electrochemical method, zirconia concentration cell method, coulometric metho...

AI Technical Summary

Problems solved by technology

However, the existing oxygen content detection devices are not only expensive but also mostly use cumbersome methods, such as yellow phosphorus luminescence method, electrochemical method, zirconia concentration cell method, coulometric analysis method, magnetic oxygen analysis, gas chromatography and gas chromatography. usage, etc. These methods are not only cumbersome and time-consuming, but also some methods are too expensive to achieve fast, accurate and convenient detection

In addition, portable and fast semiconductor electronic detection equipment has weak anti-interference ability and large error, making it difficult to detect accurate oxygen content

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