The Direct Potential Distribution Measurement of Propagating Surface Discharge by Using Pockels Effect

Akiko Kumada; Masakuni Chiba; Kunihiko Hidaka

doi:10.1541/ieejfms1990.118.6_723

Akiko Kumada, Masakuni Chiba, Kunihiko Hidaka

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JOURNAL FREE ACCESS

1998 Volume 118 Issue 6 Pages 723-728

DOI https://doi.org/10.1541/ieejfms1990.118.6_723

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Published: June 01, 1998 Received: February 23, 1998 Available on J-STAGE: July 15, 2008 Accepted: - Advance online publication: - Revised: -
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Date of correction: July 15, 2008 Reason for correction: - Correction: DTRECEIVED Details: Wrong : 19971104
Right : 19980223

Date of correction: July 15, 2008 Reason for correction: - Correction: ABSTRACT Details: Wrong : Optical sensors with a Pockels crystal have been applied to the space charge measurement in electrical discharge. By using the techniques, the distribution of potential and electric field in surface discharge can be directly measured.
A new method for measuring the transient potential distribution of surface dishcharge is developed. The measuring system consists of a BGO Pockels crystal, an Ar ion laser, a beam expander, a streak camera and a CCD camera. The potential profile of a surface discharge along a linear path of 50mm in length is
measured with high space and time resolution: 0.1mm and 2ns in minimum resolution. Electric fields near the tip of a negative surface streamer is over 30kV/cm. The developing velocity of the streamer initially reaches 10₈-10₉cm/s just after its inception and decreases down to 3×10₆ cm/s while propagating.
Right : Optical sensors with a Pockels crystal have been applied to the space charge measurement in electrical discharge. By using the techniques, the distribution of potential and electric field in surface discharge can be directly measured.
A new method for measuring the transient potential distribution of surface dishcharge is developed. The measuring system consists of a BGO Pockels crystal, an Ar ion laser, a beam expander, a streak camera and a CCD camera. The potential profile of a surface discharge along a linear path of 50mm in length is measured with high space and time resolution: 0.1mm and 2ns in minimum resolution. Electric fields near the tip of a negative surface streamer is over 30kV/cm. The developing velocity of the streamer initially reaches 10₈-10₉cm/s just after its inception and decreases down to 3×10₆ cm/s while propagating.

Date of correction: July 15, 2008 Reason for correction: - Correction: PDF FILE Details: -

Abstract

Optical sensors with a Pockels crystal have been applied to the space charge measurement in electrical discharge. By using the techniques, the distribution of potential and electric field in surface discharge can be directly measured.
A new method for measuring the transient potential distribution of surface dishcharge is developed. The measuring system consists of a BGO Pockels crystal, an Ar ion laser, a beam expander, a streak camera and a CCD camera. The potential profile of a surface discharge along a linear path of 50mm in length is measured with high space and time resolution: 0.1mm and 2ns in minimum resolution. Electric fields near the tip of a negative surface streamer is over 30kV/cm. The developing velocity of the streamer initially reaches 10₈-10₉cm/s just after its inception and decreases down to 3×10₆ cm/s while propagating.

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