Online microwave moisture monitor

A monitor and moisture technology, which is applied in the field of grain drying, can solve the problems of the influence of intelligent control of the dryer and the low accuracy of moisture detection, and achieve the effect of high detection accuracy

Pending Publication Date: 2019-11-15
六安曼斯塔农业信息科技有限公司
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Problems solved by technology

In the prior art, a moisture meter is generally installed on the dryer to detect the moisture content of the grain in the dryer in real time, but most of the moisture meters on the market are resistive moisture meters. The detection accuracy is not high, which seriously affects the intelligent control of the dryer

Method used

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  • Online microwave moisture monitor

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Embodiment Construction

[0014] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0015] An online microwave moisture monitor, comprising a housing 10, a microwave transmitting end 11 is arranged on one side wall of the housing 10, a microwave receiving end 12 is arranged on the opposite side wall, and the hollow inner cavity 13 of the housing 10 supplies grain pass. The core of the present invention is to use the microwave principle to detect the moisture content of the grain, and transmit the microwave signal to the measured medium through the microwave transmitting-receiving system, and the signal is continuously transmitted and reflected around the measured medium to form a propagation loop. The propagation time difference, that is, the picosecond-level time difference method, and then calculate the water content of the measured medium through the processing unit, with high detection accuracy.

[0016] Furthe...

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Abstract

The invention discloses an online microwave moisture monitor comprising a casing, wherein one side wall of the casing is provided with a microwave transmitting end, the side wall of the opposite sideis provided with a microwave receiving end, and a hollow inner cavity of the casing is for the grain to pass. The invention adopts the microwave principle to detect the moisture of the grain, and transmits a microwave signal to the measured medium through the microwave transmitting-receiving system. The signal is continuously transmitted and reflected around the measured medium to form a propagation loop, the moisture content of the measured medium is calculated through the processing unit by using a picosecond time difference method of calculating the time difference of propagation back and forth, and the detection precision is high.

Description

technical field [0001] The invention relates to the technical field of grain drying, in particular to an online microwave moisture monitor for a grain dryer. Background technique [0002] As a major food production and consumption country, the production and preservation of crops is extremely important to our country. As of 2017, the degree of mechanization of my country's grain drying equipment is still less than 20%, and the annual loss due to untimely drying of grain after receipt can reach 30-40 billion yuan. With economic development, market awakening and the promotion of the government, especially since grain drying equipment was included in the national agricultural machinery purchase subsidy list in 2011 and enjoyed key subsidies, the grain drying equipment industry has achieved rapid development and progress. [0003] In the grain drying process, the most important part is to detect the moisture content of the grain. By continuously testing the moisture content of ...

Claims

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Application Information

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IPC IPC(8): G01N22/04
CPCG01N22/04
Inventor 赵春江乔晓军王成段贤伍谢尚臻朱园园吴正浩
Owner 六安曼斯塔农业信息科技有限公司
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