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Non-contact insect charge-measuring system

A measurement system, non-contact technology, applied in the direction of electrostatic field measurement, can solve the problems of large measurement noise, short life, low measurement accuracy, etc., to achieve the effect of eliminating noise interference, improving sensitivity, and improving signal-to-noise ratio

Inactive Publication Date: 2010-05-26
SHANDONG AGRICULTURAL UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] At present, the research on the charging characteristics of insects at home and abroad is to measure the charging characteristics of insects by placing the insects to be tested in the Faraday bucket, making the insects directly contact with the Faraday bucket, and measuring the magnitude of the current generated by the insect charge flowing to the earth through the Faraday bucket. , this measurement method changes the insect's activity environment, changes the charge distribution on the insect, and cannot truly reflect the charging characteristics of the insect in the natural environment
At present, there is no device for measuring insect charge by non-contact measuring the electric field generated by insect charge, and the sensor for measuring quasi-electrostatic field currently used in other fields is a field mill rotary type, which has low measurement accuracy and large error. The grounding brush is used, the service life is short, and the measurement noise is relatively large, so it is not suitable for measuring insect charges.

Method used

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  • Non-contact insect charge-measuring system
  • Non-contact insect charge-measuring system
  • Non-contact insect charge-measuring system

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Embodiment Construction

[0041] The structure of the non-contact insect charge measurement system is as follows figure 2 As shown, it consists of an electric field sensor unit 4 , a control and signal processing unit 5 , a data storage display and a power supply unit 6 .

[0042] Such as image 3As shown, the casing 12 is a barrel-shaped structure, and the moving plate 7, the fixed piece 8, the shielding partition 9, the servo motor 10, the servo motor control power line shielding tube 11, the shell 12, the power line and the data line shielding tube are placed inside. 13. Measuring circuit 14, shielding partition 2 15, signal line shielding tube 16, grounding hairspring 17, moving piece rotating shaft 18. The connection of each part is as follows:

[0043] The moving piece 7 is fixed on the moving piece rotating shaft 18 through the moving piece fixing hole 21, and the moving piece rotating shaft 18 is connected to the servo motor 10 through the opening on the fixed piece 8 and the shielding parti...

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Abstract

The invention relates to a non-contact insect charge-measuring system which comprises an electric field sensor unit, a control and signal-processing unit, a data storage display and power supply unit and can measure an insect charge signal in a non-contact electric field induction mode. The system can measure the electric field signal of an insect in a natural motion state in normal motion environment without changing the charge distribution of the insect, can truly reflect the charge characteristic of the insect in the natural condition, acquire the low-frequency electromagnetic characteristic data of the insect by analyzing collected data, extract the charge characteristic of the insect, and accurately and effectively trap the insect. The non-contact insect charge-measuring system has long service life and wide application prospects in insect basic theoretical research and the field of pest prevention and control.

Description

(1) Technical field [0001] The invention relates to a non-contact insect charge measurement system. Measuring the charging characteristics of insects and obtaining the low-frequency electromagnetic characteristics of insects is an important aspect of insect basic theory research. At the same time, through the analysis and statistics of insect charging characteristics, it can be realized. The extraction of charge characteristics and its precise and efficient culling. (2) Background technology [0002] At present, the research on the charging characteristics of insects at home and abroad is to measure the charging characteristics of insects by placing the insects to be tested in the Faraday bucket, making the insects directly contact with the Faraday bucket, and measuring the magnitude of the current generated by the insect charge flowing to the earth through the Faraday bucket. , this measurement method changes the insect's activity environment, changes the charge distributio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/12
Inventor 侯加林唐凯王震张琪
Owner SHANDONG AGRICULTURAL UNIVERSITY
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