Journal of Sensor Science and Technology (센서학회지)
- Volume 5 Issue 2
- /
- Pages.47-54
- /
- 1996
- /
- 1225-5475(pISSN)
- /
- 2093-7563(eISSN)
An Automatic Measuring System of the Electric Fields Produced by Lightning Strokes
뇌방전에 의하여 발생하는 전장의 자동측정시스템
- Lee, Bok-Hee (Dept. of Electrical Engineering, College of Engineering, Inha University) ;
- Ahn, Chang-Hwan (Dept. of Electrical Engineering, College of Engineering, Inha University) ;
-
Kil, Gyung-Suk
(Dept. of Electrical Engineering, College of Engineering, Inha University)
- Published : 1996.03.30
Abstract
This paper deals with the electric field sensor and automatic measuring system of the time-varying space electric field produced by lightning discharges. The theoretical principle and the design rule of the measuring devices are investigated, and the semisphere-type electric field sensor and the signal process system are fabricated. From the calibration experiments, the frequency bandwidth of the measuring system ranges from 200 [Hz] to 1.56 [MHz] and the sensitivity is 0.96 [m V/V/m] as the amplification gain is 10. In addition, the electric field waveforms produced by lightning discharges are observed by the proposed electric field measuring system from June to August in 1995. The data is sampled with the time interval of 200 [ns] and is automatically recorded by transient signal analyzer(Necolet Pro 30), the resolution of which is 12 bit. And it is registered at personal computer. The electric field waveforms produced by intracloud discharge tend to be bipolar, with two or three narrow and fast rising pulses superimposed on the initial half-cycle.
본 논문은 뇌방전에 의하여 발생하는 시변성 전장의 검출용 센서와 자동측정계에 대하여 기술하였다. 전장측정장치의 이론적인 동작원리 및 설계방법에 대하여 고찰하고, 반구형 전장센서와 신호처리계를 제작하였다. 교정실험으로부터 증폭기의 이득이 10일 때 전장측정시스템의 주파수 대역은
Keywords