Communication Dans Un Congrès Année : 2023

Electro-optical Kerr effect in HFE-7100

Résumé

This work is an experimental study on electrooptical Kerr effect in hydrofluoroether HFE-7100. It is part of a scientific project aiming to better understand electrohydrodynamic (EHD) behavior and hence optimize EHD systems. The electro-optical Kerr effect is a nonintrusive method that allows to study the development of charged layers at the electrode/liquid interface. In this paper, the authors examine the applicability of the Kerr effect method on HFE-7100, a dielectric liquid that has proven to be very efficient in EHD applications. The system consists of a monochromatic green laser source and a rectilinear polariscope. The Kerr cell has two planar electrodes on which a high sinusoidal voltage is applied. The light intensity of the obtained images is then analyzed. The Kerr coefficient value B of the HFE-7100 is deduced to be B = 2.7×10-14 V/m², a value that is comparable to that of purified water. Kerr images are presented, and their qualitative analysis demonstrates the presence of space charge. This work proves that HFE has a good sensitivity to the Kerr effect.
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Dates et versions

hal-04428695 , version 1 (31-01-2024)

Identifiants

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Michelle Nassar, Michel Daaboul, Anny Michel, Christophe Louste. Electro-optical Kerr effect in HFE-7100. 2023 IEEE 22nd International Conference on Dielectric Liquids (ICDL), Jun 2023, Worcester, United States. pp.1-4, ⟨10.1109/ICDL59152.2023.10209331⟩. ⟨hal-04428695⟩
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