A clamping device for detecting dielectric properties of a circular parallel electrode object and its detection method

Abstract

The invention discloses a circular parallel electrode object dielectric characteristic detection and clamping device and its detection method. The lower parallel electrode plate is fixedly placed on the device base to keep it level; the upper parallel electrode plate is connected to a bracket through a sliding adjustment device, and the bracket It is connected with the base; by adjusting the coarse adjustment device and the fine adjustment device, the upper pole plate connected to the bracket can be moved up and down, so as to realize the change of the distance between the two pole plates and the effective parallel and appropriate clamping force of the clamping object; It also has a sliding rheostat, and the distance between the parallel plates is converted into an electrical signal through the sliding rheostat and the distance measuring circuit, and then displayed on the display through the operation of the single-chip microcomputer. The invention can realize effective parallel and appropriate clamping force for the clamping object when detecting the electrical characteristics of the object, and can timely and accurately read the distance when clamping; And higher precision, direct display of relevant information and other advantages.

Description

technical field [0001] The invention relates to a circular parallel plate electrode clamping device for quickly detecting the dielectric constant of an object and a detection method thereof, belonging to the technical field of detection instruments. Background technique [0002] At present, the water shortage detection of crops has become a major problem in agricultural engineering. Although the traditional drying and weight loss method can accurately obtain the moisture content of crops, this method has a long cycle and cannot perform live detection, so it has certain limitations. In recent years, with the rapid development of science and technology, some advanced technologies have been applied to the detection of moisture content of crop leaves, including spectral technology and electrical characteristics. As far as the electrical characteristic technology is concerned, the dielectric constant is an attribute of the object, so as long as the relationship between the water ...

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Problems solved by technology

[0003] Most of the existing technologies and products are relatively simple to manufacture and cannot achieve strict mutual parallelism between the two plates, which greatly affects the measurement accuracy and produces great errors; in addition, it is impossible to directly measure the distance between the plates, and it is necessary to Manual measurement in the later stage increases the difficulty and process of the operation, which is not convenient; there is no intuitive performance for the clamping of the object, which depends entirely on personal feeling, and it is difficult to achieve the operation purpose of clamping the object with an appropriate clamping force

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