Ultrahigh frequency electromagnetic pulse sensor characteristic calibration method and system
A sensor characteristic and electromagnetic pulse technology, which is applied in the field of UHF electromagnetic pulse sensor characteristic calibration, can solve problems such as difficult to achieve high field strength fast front UHF electromagnetic pulse sensor calibration, electromagnetic pulse front and limited amplitude, etc., to achieve Improve electromagnetic compatibility, improve measurement level, and ensure the effect of electromagnetic safety
Active Publication Date: 2022-04-15
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +1
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Domestic Tsinghua University, Northwest Institute of Nuclear Technology and other units have developed related mirror single-cone calibration systems, but the electromagnetic p
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[0084] The UHF electromagnetic pulse sensor characteristic calibration system based on the monocone antenna is mainly composed of a high-power sub-nanosecond frontier pulse source 6 and a mirror monocone antenna 1. The pulse source is fed by a feed cable 8 connected to the mirror monocone antenna 1, so that A standard electromagnetic field is formed in the near-field region of the mirror monoconical antenna 1, thereby realizing the calibration of the sensor to be tested 2 and the UHF electromagnetic pulse sensor. Among them, the high-power sub-nanosecond frontier pulse source 6 adopts the Marx circuit design scheme based on the avalanche triode, which is an all-solid-state pulse source. The mirror monocone antenna 1 is an ultra-wideband antenna, and the working bandwidth of the antenna can be adjusted by changing the size of the antenna, so as to generate a UHF pulsed electromagnetic field and realize the calibration of the sensor.
[0085] The present invention adopts the all...
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The invention discloses an ultrahigh frequency electromagnetic pulse sensor characteristic calibration method and system, and belongs to the technical field of sensor characteristic calibration. According to the ultrahigh-frequency electromagnetic pulse sensor characteristic calibration method based on the single-cone antenna, a mirror single-cone calibration system is formed by constructing a high-power subnanosecond leading-edge pulse source and the mirror single-cone antenna, the high-power subnanosecond leading-edge pulse source is an all-solid-state pulse source based on an avalanche transistor, and the mirror single-cone antenna is an all-solid-state pulse source based on an avalanche transistor. The ultrahigh-frequency electromagnetic pulse sensor calibration device can be used for realizing calibration of an ultrahigh-frequency electromagnetic pulse sensor, so that the leading edge of an output pulse reaches a hundred ps magnitude and the peak voltage reaches a kV magnitude, a high-field-intensity subnanosecond electromagnetic pulse standard field environment can be generated, and calibration of a high-amplitude fast-leading-edge ultrahigh-frequency electromagnetic pulse sensor can be realized. Therefore, the GIS comprehensive pulse radiation environment measurement level is greatly improved, the calibration problem of the high-amplitude fast-leading-edge ultrahigh-frequency electromagnetic pulse measurement sensor is solved, and the scheme is simple, practical, feasible and convenient to implement.
Description
technical field [0001] The invention relates to a characteristic calibration method and system of an ultra-high frequency electromagnetic pulse sensor, belonging to the technical field of sensor characteristic calibration. Background technique [0002] Different from the electromagnetic compatibility continuous wave electric field signal, the electromagnetic pulse is a transient signal, which has the characteristics of fast rising edge, short duration, high amplitude and wide frequency band. Therefore, the test system is required to have an extremely wide test bandwidth and a large linear dynamic range, which puts forward new requirements for the measurement sensor and calibration system. At present, there are no relevant calibration and calibration standards or specifications in the world, usually based on IEEE STD 1309-2013 issued by IEEE in 2013. [0003] Among the three calibration methods proposed in this standard, the type B calibration method is the most commonly use...
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Inventor 王异凡杨青马建国黄辉龚金龙邵先军周绍华金涌涛郑一鸣宋琦华孙明王一帆骆丽王尊王劭鹤
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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