Intelligent range-adjustable sandstorm electric field measuring system based on shielded probe

Abstract

The invention discloses an intelligent range-adjustable sandstorm electric field measuring system based on a shielded probe. The sandstorm electric field measuring system comprises the shielded probe, a front-end processing unit, a rear-end processing unit and a switching unit. The shield probe contacts with a sandstorm electric field and is used for acquiring field signals in the sandstorm electric field, the front-end processing unit is connected with the shielded probe in a signal manner and is used for primary processing of the field signals from the shielded probe, the rear-end processing unit is connected with the front-end processing unit and is used for comprehensive processing of primary processing result from the front-end processing unit under operation modes of manual control or automatic control, and the switching unit is connected with the rear-end processing unit and is used for switching operation modes. Defects of poor sandstorm resistance, lack of interference resistance, low intelligence degree and the like in the prior art can be overcome by the intelligent range-adjustable sandstorm electric field measuring system based on the shielded probe, and accordingly the sandstorm electric field measuring system is high in sandstorm resistance, can shield a lateral electric field and is highly intelligent.

Description

technical field [0001] The invention relates to the technical field of wind-sand electric field measurement equipment, in particular to an intelligent wind-sand electric field measurement system with adjustable range based on shielded probes. Background technique [0002] The wind-sand electric field refers to an electric field that is 2-3 orders of magnitude higher than the atmospheric electric field in sunny days due to the movement of sand particles (dust) with a certain amount of charge in the wind-sand environment, which directly affects the formation and development of the wind-sand flow process, changes in sand transport intensity, and normal transmission and reception of communication radar signals. How to accurately and real-time measure the wind-sand electric field in different wind-sand environments (sand flow, sandstorm and dust volume) has become a hot issue in the field of environmental mechanics research. [0003] At present, there are two main types of elect...

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Problems solved by technology

[0004] (1) Sand particles of different particle sizes and shapes mixed in the sandstorm environment will impact the vibration and rotation sensing parts at the front end of the electric field measuring equipment probe during the measurement process. As a result, the sensing parts of the probe cannot work stably and affect the experimental results. correctness and precision;

[0005] (2) The existing atmospheric electric field measurement equipment has good linearity, and the working range of the more sensitive response is mainly within 100kv / m. However, in the windy and sandy environment, especially in the sandstorm, the electric field of 200kv / m-300kv / m has been found. Therefore, the existing atmospheric electric field measurement equipment cannot meet the measurement of the electric field in the wind and sand environment from the perspective of range;

[0006] (3) Due to the complex environment and conditions of the sandstorm electric field, the direction of the electric field is not certain, and its direction and size in the three-dimensional space are constantly changing, and the existing atmospheric electric field measurement equipment does not have the ability to measure the three-dimensional electric field. Therefore, the three-dimensional distribution results of the wind-sand electric field cannot be completely given

In the process of realizing the present invention, the inventor found that there are at least some defects in the prior art, such as poor anti-wind and sand ability, lack of anti-interference ability and low degree of intelligence.

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