Automatic calibration device of static electric field sensor and calibration method thereof

Abstract

The invention provides an automatic calibration device of a static electric field sensor and a calibration method thereof. A three-dimensional electric field sensor test supporting seat is adopted so as to realize calibration and testing to a three-dimensional electric field sensor. Simultaneously, the device is also a multi-mode automatic calibration device, and compatibility and flexibility are good. Functions of automatic adjustment of a high voltage power supply output voltage, arbitrary arrangement of electric field measurement points and adjusting time intervals, automatic acquisition of electric field data, processing and the like are realized and calibrate efficiency and precision of the electric field sensor are greatly increased. A slide rail is used to connect a test pole plate structure and a shielding structure box body, and during calibration, operation is convenient and maintenance is easy. A conductive metal wire and an equal voltage division resistor string are arranged so as to increase the calibration precision. A temperature sensor and a humidity sensor are arranged in an electric field test box so that an important reference basis is provided for electric field sensor environment adaptability research.

Description

technical field [0001] The invention relates to the technical field of electric field sensors, in particular to an automatic calibration device and calibration method for electrostatic field sensors. Background technique [0002] During the formation of extreme weather such as thunderstorms and sandstorms, the atmospheric electric field undergoes drastic changes. Using electric field sensors to detect the atmospheric electric field, especially the aerial electric field, plays an important role in extreme weather forecasts and plays a significant role in ensuring the safety of human life and property and the safety of aircraft launches. Significance. [0003] The electric field sensor calibration device and calibration method are very critical to the performance evaluation of the electric field sensor, and play a very important role in the research and application of the electric field sensor. As the core device of electric field detection, the electric field sensor must be ...

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Problems solved by technology

The Space Science and Application Research Center of the Chinese Academy of Sciences elaborated in detail the implementation method of the invented atmospheric electric field calibration system in the patent "A high-precision and wide-range atmospheric electric field calibration system" (application number: 201110162132.0), but the calibration system cannot be used for The three-dimensional electric field sensor is calibrated, and the voltage adjustment is manual adjustment when the calibration system is calibrated

North China Electric Power University discloses a calibration device and its calibration and verification method in the patent "Calibration Device for DC Electric Field Measuring Instrument and its Calibration and Verification Method" (Application No.: 201310054272.5). calibration

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