ELECTRO-OPTIC CHARGE INJECTION AND TRANSPORT MEASUREMENTS IN HIGHLY PURIFIED WATER AND WATER/ETHYLENE GLYCOL MIXTURES.

M. Zahn, Yoshimichi Ohki, K. Rhoads, M. LaGasse, H. Matsuzawa

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Extensive Kerr electrooptic field mapping and voltage/current measurements have been taken with highly purified water over the temperature range of T = 0 to 30 degree C using parallel plane electrodes with average field strengths up to 160 kV/cm. With pure water, a high-voltage step has no volume charge at t = 0. For times greater than 500 mu s, stainless steel and copper electrodes generally inject positive charge, although under some conditions with mixed electrodes they injected negative charge. Aluminum electrodes only inject negative charge; while brass electrodes can inject either positive or negative charge. Thus, by appropriate choice of electrode material combinations and voltage polarity, it is possible to have uncharged water, unipolar charged negative or positive water, or bipolar charged water. Generally, the bipolar case allows a higher applied voltage without breakdown, presumably owing to the lower electric field strengths at the electrodes resulting from the space charge shielding.

Original languageEnglish
Pages (from-to)199-211
Number of pages13
JournalIEEE Transactions on Electrical Insulation
VolumeEI-20
Issue number2
Publication statusPublished - 1985 May
Externally publishedYes

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Charge injection
Electrooptical effects
Ethylene glycol
Charge transfer
Electrodes
Water
Voltage measurement
Brass
Electric potential
Electric current measurement
Electric breakdown
Electric space charge
Shielding
Stainless steel
Electric fields
Copper
Aluminum

ASJC Scopus subject areas

  • Engineering(all)

Cite this

ELECTRO-OPTIC CHARGE INJECTION AND TRANSPORT MEASUREMENTS IN HIGHLY PURIFIED WATER AND WATER/ETHYLENE GLYCOL MIXTURES. / Zahn, M.; Ohki, Yoshimichi; Rhoads, K.; LaGasse, M.; Matsuzawa, H.

In: IEEE Transactions on Electrical Insulation, Vol. EI-20, No. 2, 05.1985, p. 199-211.

Research output: Contribution to journalArticle

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