Space-charge influence on non-linear beam defocusing

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

Some of the investigations in the past few years have shown that organic liquid dielectric, containing space charge have structuralized regions. The report contains results of experimental investigation of nonlinear optoelectrohydrodynamics (OEGD) effect, which appears under the transmission of a helium-neon laser beam through low-conducting liquids as a result the light absorption and heating of translucent liquid leads to spontaneous defocusing of laser beam, a laser power exceeding 1 mVt. Effect is non-excited liquid is isotropic. Effect has threshold tension being 1 kV/sm. Under the effect of the electric field of 1 kV/sm, on liquid, defocusing is decreasing, space anisotropism arises due to the space electric charge and electrohydrodynamic currents. This influence of electrohydrodynamic (EHD) currents is very significant and is brought about by connective heat conduction. The separate hydrodynamic and charge effects specific experiments were carried out in the system of partially isolated electrodes. Anisotropism of OEGD-effects has been established under these conduction. It has been shown that liquid acquires anisotropic properties due to structured molecules in the ionic field, forming space charge. Anisotropic properties of low-conducting liquids, in the absence of EHD-currents are being preserved during several hours after voltage is off.

Язык оригиналаанглийский
Название основной публикацииProceedings of the 1999 68th Annual Conference on Electrical Insulation and Dielectric Phenomena
Страницы170-173
Число страниц4
Том1
СостояниеОпубликовано - 1 дек 1998
Событие67th IEEE Annual Conference on Electrical Insulation and Dielectric Phenomena - Atlanta, GA, USA
Продолжительность: 25 окт 199828 окт 1998

Серия публикаций

НазваниеConference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report
ISSN (печатное издание)0084-9162

конференция

конференция67th IEEE Annual Conference on Electrical Insulation and Dielectric Phenomena
ГородAtlanta, GA, USA
Период25/10/9828/10/98

Предметные области Scopus

  • Электротехника и электроника
  • Промышленная технология и станкостроение
  • Строительство

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