Preparation method of miniature temperature-controllable automatic heating dehumidifying plugging plate

Abstract

The invention discloses a preparation method of a miniature temperature-controllable automatic heating dehumidifying plugging plate. The method comprises the following steps of 1, etching a nanometer-grade ordered small hole array on a stainless steel or ceramic substrate; 2, plating a wet film on the substrate by means of conductive ink in a spraying manner, and then performing drying processingfor forming a continuous conductive layer on the surface of the substrate and the inside surfaces of the small holes; 3, manufacturing a metal electrode which is connected with the conductive layer; and 4, mounting a micro temperature detector on the edge of the back surface of the substrate in a patch manner, wherein the micro temperature detector is connected with a controller. The plugging plate is placed in front of an air inlet of a detecting instrument, and the small holes on the substrate perform a function of introducing air. After the plugging plate is energized, the detected air is firstly heated and dehumidified through the small holes, the detected air enters the detecting instrument. After the temperature exceeds a preset temperature, the controller automatically switches offa heating system. When the temperature is lower than the preset temperature, the controller automatically starts the heating system for supplying power to the conductive layer.

Description

technical field [0001] The invention relates to the technical field of air detection, in particular to a miniature temperature-controllable automatic heating and dehumidification insert. Background technique [0002] With people's pursuit of high-quality life, the attention of air pollution is getting higher and higher. In particular, with the intensification of smog days in various cities in recent years, PM2.5 and PM10 data have become a very hot topic in people's daily life. At present, there are many detection methods for the concentration of atmospheric particulate matter in the market, and the more common ones are the β meter method, the microbalance method and the light scattering method. However, when the above methods measure in real time, the data are often affected by atmospheric humidity. When the relative humidity of the atmosphere is high, the concentration of atmospheric particulate matter measured by corresponding detection instruments is higher than the ac...

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Problems solved by technology

[0004] Purpose of the invention: Aiming at the above-mentioned prior art, a method for preparing a miniature temperature-controllable automatic heating and dehumidification insert is proposed, and an insert is prepared to solve the problem of insufficient dehumidification and high power consumption of current heating instruments used in atmospheric environment air quality detection , The problem of complex device structure

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