Grain moisture measuring instrument

Abstract

The invention discloses a grain moisture measuring instrument. The grain moisture measuring instrument comprises a main control board, a measuring board, a function key board, a power supply motor driving board and a signal collecting and detecting device; the measuring board, the function key board, the signal collecting and detecting device and the power supply motor driving board are electrically connected with the main control board separately, the main control board is electrically connected with the signal collecting and detecting device through the measuring board, and the power supplymotor driving board is electrically connected with the signal collecting and detecting device; the signal collecting and detecting device is internally provided with a first motor, a second motor, a temperature collecting probe and a humidity collecting probe, the humidity collecting probe is used for detecting the capacitance value in grains, and the signal collecting and detecting device comprises a first roller and a second roller. By means of the grain moisture measuring instrument, the material moisture content of particles of different diameters is detected, the cost is reduced, juice inthe grains on the first roller and the second roller is conveniently cleaned away, and the accuracy of the subsequent detection is facilitated; meanwhile, after the first roller and the second rollerare washed with water, quick drying can be facilitated, the subsequent measurement of grain moisture is facilitated, and the measurement efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of grain moisture measurement, in particular to a grain moisture measuring instrument. Background technique [0002] In the process of grain production and processing, the moisture content in grain is an important reference quantity. The moisture content of grain generally refers to the free water and bound water contained in grain. Free water is also called free water, which exists in the intercellular space of grain. and in the capillary. It has the nature of ordinary water and is very unstable in food, and often increases or decreases with changes in the temperature and humidity of the environment; bound water exists in cells and is firmly combined with hydrophilic colloids such as starch and protein. The nature of bound water is more stable than that of free water, and it is not easy to increase or decrease with changes in the temperature and humidity of the environment. In grain moisture detection, th...

AI Technical Summary

Problems solved by technology

First, the circuit design is not very simple

The second is that during the grain rolling process, the motor speed is too fast or too slow to measure the grain moisture. If the motor speed is too fast, the temperature will be too high during the grain rolling process, and the heat of the motor is not easy to dissipate. It greatly affects the accuracy of measurement; on the contrary, the motor speed is too slow, and the rolling pressure of the roller is not enough to break the shell of the grain, and the purpose of measuring the internal moisture of the grain cannot be achieved.

The third is that when testing the moisture in the grain, the distance between the rollers cannot be adjusted, which is not convenient to detect the moisture content of the material with different diameter particles

Fourth, during the rolling process of the grain by the roller, the juice in the grain is easy to stick to the roller, and it is not easy to clean up

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