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Foundamental Research on Elucidation of Lightning Parameters by using Optical Sensing Method.

利用光学传感方法解析雷电参数的基础研究。

基本信息

批准号：
03805024
负责人：
YODA Masayuki
金额：
$ 1.34万
依托单位：
Aichi Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03805024/
关键词：
Multi-Spectro-Radiometer Arc Discharge in Air Remote Sensing for Lightning Parameter Rocket Triggered Lightning Experiment in Winter Two-range Measuring System for Lightning Current Three-range Optical LAN System Incoming Lightning Surge Vol

项目摘要

1. Research Results on the Optical Sensing Method(1) The remote sensing optical systems, which consist of a multi-spectro-radiometer and a digital osciloscope, have been made up in 1991.(2) The spectral characteristics of an atmospheric discharge flash between a 300 mm gap have been measured with the systems in 1992. The specially designed optical systems for measuring the transient characcteristics of emission of radiation for the wavelength range of 350 to 500 nm has been utilized with resolving abilities of 1 nm and less than 0.1 mus.(3) In 1993, the spectrum and transient-time characteristic of aerial radiation have been measured without the current waveform oscillation of an applied impulse voltage.2. Research Results on the Lightning Parameters(1) The portable digital systems have been taken part in the artificially triggered lightning experiments with rocket in winter. And then the detailed characteristics of lightning current waveforms have been discussed. The two-range measuring system for lightning current and the three-range optical LAN system have been developed in order to observe the lightning prameters.The incming lightning surges to transmission systems of 275 kV and 77 kV have been investigated to obtain a general idea of the lightning discharge current characteristics. The current waveform dependent surge voltages at the initial stage of lightning stroke have been clearly observed.

1.光学遥感方法的研究结果（1）由多光谱辐射计和数字示波器组成的遥感光学系统已于1991年研制成功。(2)1992年用该系统测量了300 mm间隙的大气放电闪光的光谱特性。专门设计的光学系统用于测量350 ~ 500 nm波长范围内辐射发射的瞬态特性，其分辨能力为1 nm，小于0.1 μ s。(3)1993年，在没有外加脉冲电压的电流波形振荡的情况下，测量了天线辐射的频谱和瞬态时间特性。雷电参数研究结果（1）便携式数字化系统参加了冬季火箭人工引雷试验。在此基础上，对雷电流波形的具体特征进行了讨论。研制了雷电流双量程测量系统和雷电流三量程光学局域网系统，对275 kV和77 kV输电系统的雷电冲击进行了观测，得到了雷电放电电流特性的一般规律。在雷击的初始阶段的电流波形依赖的浪涌电压已被清楚地观察到。