Indoor methanol concentration detecting system with temperature compensating function

Abstract

The invention discloses an indoor methanol concentration detecting system with a temperature compensating function. The indoor methanol concentration detecting system comprises a methanol concentration sensor, a temperature sensor, an analog / digital converting module, a microcontroller module, a display module and a data transmission module, wherein the methanol concentration sensor and the temperature sensor are connected with the microcontroller module via the analog / digital converting module; and the display module and the data transmission module are connected to corresponding ports of the microcontroller module.

Description

technical field [0001] The invention relates to a formaldehyde concentration detection system, in particular to an indoor formaldehyde concentration detection system with temperature compensation, which belongs to the field of concentration detection and control. Background technique [0002] Formaldehyde is a poisonous gas, which widely exists in home decoration materials and endangers people's health, so the monitoring of formaldehyde is particularly important. With the development of technology, the monitoring of formaldehyde is mainly developed in the direction of real-time response, simplified operation, low power consumption and low cost. At present, some people in China have made instruments for formaldehyde monitoring. They all use foreign electrochemical sensors, but the cost is relatively high. [0003] Formaldehyde (HCHO) is a colorless gas with a pungent odor at room temperature, and is easily soluble in water, alcohol and ether. Formaldehyde is strongly harmfu...

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Problems solved by technology

However, these methods are all offline detection, that is, the gas samples are collected back to the laboratory for analysis; therefore, the detection period according to the above methods is long, the cost is high, and the steps are cumbersome, and it cannot be directly carried out at the site to be detected, and cannot be reflected in real time. Pollution degree of formaldehyde in indoor air and meeting the monitoring needs of a large number of measuring points on site

[0005] The existing air formaldehyde self-test box is cheap and easy to operate, but the error is large. Due to the large difference in color judged by the naked eye, it cannot fully reflect the actual formaldehyde content; the portable detector has high detection accuracy, but is expensive. Not suitable for the mass consumer market

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