Development of Bulk Charge Measurement System in Dielectric Materials for Spacecrafts

航天器介电材料体电荷测量系统的开发

基本信息

批准号：
16560280
负责人：
TANAKA Yasuhiro
金额：
$ 2.3万
依托单位：
Musashi Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560280/
关键词：
Spacecraft Bulk Charge Pulsed Electro-acoustic method Pressure Wave Propagation method Dielectric Materials Electron Beam Irradiation Proton Beam Irradiation Charge Distribution 表面帯電絶縁破壊高分子

项目摘要

Measurement systems for surface and bulk charge distributions on and in dielectric materials are developed using optical and acoustic methods. In space environment, a spacecraft is exposed by high-energy cosmic rays. The electric potential of insulating materials on the surface of the spacecraft charged up when the cosmic rays are irradiated to the spacecraft. Sometimes, the change of the electric potential causes an unexpected accident of electrostatic discharge (ESD) with serious damage to the electric and/or electronics devices. To understand the mechanism of the ESD, the measurement of charge distribution on surface of the dielectric materials and/or bulk charge distribution in dielectric materials should be carried out. Therefore, we have proposed to use some unique measurement methods using optics and acoustic techniques to observe the distribution in and on the materials under electron beam irradiation. In the optical method, so called Pockel's and Kerr effects are used as the basic principle. On the other hand, the PEA (Pulsed electro-acoustic) and Pressure Wave Propagation methods are used. Using these methods, we have succeeded in measuring the surface and the bulk charge distributions on and in dielectric materials under electron beam irradiation. Furthermore, an effect of the accumulated bulk charge on dielectric breakdown was also investigated using acoustic method.

使用光学和声学方法开发介电材料表面和整体电荷分布的测量系统。在太空环境中，航天器受到高能宇宙射线的照射。当宇宙射线照射到航天器上时，航天器表面的绝缘材料的电势就会充电。有时，电势的变化会导致意外的静电放电（ESD）事故，从而对电气和/或电子设备造成严重损坏。为了了解 ESD 的机理，应测量介电材料表面的电荷分布和/或介电材料中的体电荷分布。因此，我们提出使用一些独特的测量方法，利用光学和声学技术来观察电子束照射下材料内部和表面的分布。在光学方法中，所谓的普克尔效应和克尔效应被用作基本原理。另一方面，使用 PEA（脉冲电声）和压力波传播方法。使用这些方法，我们成功地测量了电子束照射下介电材料表面和体电荷的分布。此外，还使用声学方法研究了累积的大量电荷对电介质击穿的影响。

项目成果

期刊论文数量（28）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Open-PEA Space Charge Measurement System

开放式 PEA 空间电荷测量系统

DOI：
发表时间：
2006
期刊：
IEEJ Trans.FM (in Japanese) Vol.126,No.3
影响因子：
0
作者：
S.Imai;Y.Tanaka;T.Fukao;T.Takada;T.Maeno
通讯作者：
T.Maeno

Acoustic Measurement Techniques for Bulk Charge Distribution in Dielectrics irradiated by Electron Beam

电子束辐照电介质体电荷分布的声学测量技术

DOI：
发表时间：
2004
期刊：
Proc.2004 IEEE International Conference on Solid Dielectrics 1
影响因子：
0
作者：
Y.Tanaka;et al.
通讯作者：
et al.

Optical measurement techniques for surface and bulk charge distribution

DOI：
10.1109/icsd.2004.1350591
发表时间：
2004-07
期刊：
Proceedings of the 2004 IEEE International Conference on Solid Dielectrics, 2004. ICSD 2004.
影响因子：
0
作者：
Y. Tanaka;Y. Usui;K. Umemura;T. Takada;R. Watanabe;N. Tomita
通讯作者：
Y. Tanaka;Y. Usui;K. Umemura;T. Takada;R. Watanabe;N. Tomita

Electrical properties and morphology of polyethylene produced with a novel catalyst