OPTICAL HIGH-SENSITIVE FIELD SENSOR USING A POCKELS CRYSTAL

被引：10

作者：

MUROOKA, Y

NAKANO, T

机构：

[1] Department of Electrical Engineering, National Defense Academy of Japan, Yokosuka

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1992年 / 63卷 / 12期

关键词：

D O I：

10.1063/1.1143385

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The sensitivity of an optical field sensor with a Pockels crystal of LiNbO3 for measuring a field distribution in a long-gap discharge has been much improved by using an intensity difference method with an intensity-modulated laser beam. The signal-to-noise ratio (S/N) is also improved by 37 dB from that without the above-mentioned method. The resultant sensitivity of the new field measuring system is 100 times higher than that of the previous one. Finally, it is possible to measure an electric field down to 7.5 V/cm in the long-gap discharge with high accuracy corresponding to the S/N ratio of 20 dB and 1.5 V/cm with the accuracy of 6.0 dB.

引用

页码：5582 / 5585

页数：4

共 8 条

[1] ELECTRIC-FIELD MEASUREMENTS IN LONG GAP DISCHARGE USING POCKELS DEVICE [J].

HIDAKA, K ;

MUROOKA, Y .

IEE PROCEEDINGS-A-SCIENCE MEASUREMENT AND TECHNOLOGY, 1985, 132 (03) :139-146

[2]

HIDAKA K, 1980, THESIS TOKYO U

[3]

Langmuir I., 1923, GEN ELECTR REV, V26, P731

[4]

MEEK JM, 1965, ELECTRON LETT, V1, P110

[5]

MUROOKA Y, 1991, DISCHARGE COMMITTEE, V911

[6]

OHTA T, 1989, 6TH P INT S HIGH VOL, V3

[7] ELECTRIC FIELD AND CURRENT DENSITY IN IMPULSE CORONA DISCHARGE IN A ROD/PLANE GAP [J].

WATERS, RT ;

RICKARD, TES ;

STARK, WB .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1968, 304 (1477) :187-&

[8]

YARIV A, 1976, INTRO OPTICAL ELECTR, P256

← 1 →