Automatically-recording type ventilating dry humidity device

Abstract

The invention relates to an automatically-recording type ventilating dry humidity device which comprises a moisturizing device, an air flue (16), a partition plate (14), a fan (17), a thermocouple wetbulb (9), a thermocouple temperature difference wet bulb (10), a thermocouple temperature difference dry bulb (11), a thermocouple dry bulb (12), moisturizing gauze (7), a digital collecting and recording processor (24) and a thermostat (23), wherein a measuring port of the air flue pipe (16) is divided into a measuring cavity I (13) and a measuring cavity II (15) by the partition plate (14); thethermocouple wet bulb (9) and the thermocouple temperature difference wet bulb (10) are arranged in the measuring cavity I (13) of the air flue pipe (16); the thermocouple temperature difference drybulb (11) and the thermocouple dry bulb (12) are arranged in the measuring cavity II (15) of the air flue pipe (16); and the copper electrode output ends of the thermocouple temperature difference wetbulb (10) and the thermocouple temperature difference dry bulb (11), and the copper electrode output ends and the constantan electrode output ends of the thermocouple wet bulb (9) and the thermocouple dry bulb (12) are connected with the inlet end of the digital collecting and recording processor (24), thereby being difficult to lose a limit value and recording and storing a numerical value in the micro-change state process in time.

Description

1. Technical field [0001] The invention relates to an automatic recording type ventilation dry-humidity temperature device, in particular to an automatic recording type dry-wet temperature device suitable for monitoring the micro-change state of the ecological environment temperature and humidity. 2. Background technology [0002] Dry bulb temperature, wet bulb temperature and relative humidity are important factors of the agricultural ecological environment. Accurate and timely recording of these temperature and humidity parameters is a very important basis for future research on the impact of environmental changes on agricultural ecology. Therefore, recording these temperature and humidity parameters The parameters of the device are very important. Among the existing methods for recording these temperature and humidity parameters, one is to use manual real-time observation and recording. This method is not only time-consuming, laborious, and inefficient, but also fails to ...

AI Technical Summary

Problems solved by technology

Among the existing methods for recording these temperature and humidity parameters, one is to use manual real-time observation and recording. This method is not only time-consuming, laborious, and inefficient, but also fails to record and save the values ​​of the micro-change state process in time, especially easy The limit value is lost; another method is to use a device such as an Assmann ventilation psychrometer for observation. Since it cannot be converted into a digital signal, it cannot be recorded by the data acquisition and recording processor, and it cannot record and save the micro-change state process in time. It is also easy to lose the limit value; at the same time, due to the large probe and low sensitivity, the reaction speed is usually calculated in minutes, and the hysteresis is particularly obvious. It is difficult to capture the instantaneous change of temperature and humidity, especially the limit value is easy to lose. The limit values ​​of dry bulb temperature, wet bulb temperature and relative humidity are important data for studying the impact of environmental changes on agricultural ecology

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