A NOVEL METHOD FOR ELECTRET PRODUCTION USING IMPULSE VOLTAGES

被引：13

作者：

ALTAFIM, RAC ^{[1
]}

GIACOMETTI, JA ^{[1
]}

JANISZEWSKI, JM ^{[1
]}

机构：

[1] INST FIS & QUIM SAO CARLOS,SAO CARLOS,BRAZIL

来源：

IEEE TRANSACTIONS ON ELECTRICAL INSULATION | 1992年 / 27卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1109/14.155790

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new method for producing electrets is proposed in which an electric discharge is produced by a negative impulse voltage in a small air gap. The dielectric film to be charged is placed between two planar electrodes, the film being in contact with one of the electrodes and separated from the other by the air gap. The electric discharge in the gap causes electric charges to deposit onto the dielectric surface where they are trapped, thus forming the electret. Measurements carried out with Teflon FEP show a very uniform deposition, and also that the sample surface potential increases linearly with increasing impulse peak voltage. This method appears to be as good as the corona discharge for the production of electrets, with regards to a high turn out and low cost.

引用

页码：739 / 743

页数：5

共 14 条

[1]

ALTAFIM RAC, IN PRESS IEEE T IND

[2]

BLAIR DT, 1978, ELECTRICAL BREAKDOWN, V2, pCH6

[3]

CESSLER GM, 1980, ELECTRETS, pCH7

[4] STABILITY OF LIQUID CHARGED ELECTRETS [J].