Indoor humidity measuring instrument

Abstract

The invention discloses an indoor humidity measuring instrument. The indoor humidity measuring instrument comprises a shell; a humidity measuring device is arranged in the shell; the humidity measuring device comprises a humidity sensor; the humidity sensor comprises a measuring probe and two guide pins; the two guide pins are electrically connected with an amplifying circuit; the amplifying circuit is connected with a rectification circuit; the rectification circuit is connected with a single-chip microcomputer; the single-chip microcomputer is connected with a display screen and an operation region; an air circulation region is arranged inside the shell; the measuring probe is arranged in the air circulation region; a ventilator is arranged in the wind circulation region; the ventilator includes a fan and a motor, wherein the fan faces the measuring probe, and the motor is fixed to the shell and is connected with a ventilator button of the operation region; the air circulation region includes an air inlet and an air outlet; the probe is arranged at the air outlet; the ventilator is arranged at the air inlet; and each of the air inlet and air outlet is provided with a fixing grid plate and dust filter cloth, wherein the dust filter cloth is fixed onto the fixing grid plate. With the indoor humidity measuring instrument adopted, air circulation can be accelerated in measurement, and the accuracy of measurement is ensured.

Description

technical field [0001] The invention relates to an indoor humidity measuring instrument. Background technique [0002] At present, humidity measuring instruments and humidity sensors are very common and applied to various fields. With the improvement of people's living standards, people also often use humidity measuring instruments or humidity sensors at home to measure the indoor air humidity in real time and improve the comfort of people's lives. The humidity sensor or humidity measuring instrument in the prior art is mainly completed by measuring the relative content of water vapor in the air. However, in the prior art, the humidity sensor or humidity measuring instrument is often placed at a fixed height or at a fixed position, so that Due to weak indoor ventilation or slow air circulation, when the time comes, the measurement error of the humidity sensor or humidity meter increases, and the measured value is a local value, which is inaccurate. Contents of the inventi...

AI Technical Summary

Problems solved by technology

The humidity sensor or humidity measuring instrument in the prior art is mainly completed by measuring the relative content of water vapor in the air. However, in the prior art, the humidity sensor or humidity measuring instrument is often placed at a fixed height or at a fixed position, so that Due to weak indoor ventilation or slow air circulation, the measurement error of the humidity sensor or humidity meter increases when the time comes, and the measured value is a local value, which is inaccurate.

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