The Experts below are selected from a list of 243 Experts worldwide ranked by ideXlab platform
Vitaly B. Voloshinov - One of the best experts on this subject based on the ideXlab platform.
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Acousto-optic Modulation of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
Journal of Infrared Millimeter and Terahertz Waves, 2020Co-Authors: P. A. Nikitin, Vasily V. Gerasimov, Vitaly B. VoloshinovAbstract:Acousto-optic modulation of terahertz free-electron laser radiation was investigated using diffraction on an acoustic wave in liquefied Sulfur Hexafluoride at room temperature. At the wavelength 130 μ m, the diffraction efficiency in Bragg regime of interaction 1% was obtained at 75 V driving electrical signal applied to the transducer terminals.
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Observation of Acousto-Optic Diffraction of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
IEEE Transactions on Terahertz Science and Technology, 2019Co-Authors: P. A. Nikitin, Boris A. Knyazev, Vitaly B. Voloshinov, Michael A. ScheglovAbstract:Diffraction of terahertz radiation on ultrasound in liquefied Sulfur Hexafluoride at room temperature was observed for the first time. The dependences of the diffraction efficiency on the sound frequency, angle of incidence, and amplitude of radio-frequency electrical signal applied to a piezo-transducer were studied. Deflection of diffracted radiation by an angle of $\text{10}^\circ$ was observed. It was found that the diffraction efficiency at room temperature is significantly (four times) higher than the one at 14 $^\circ$ C known from the literature. The obtained and published data on the acousto-optic diffraction in liquefied Sulfur Hexafluoride contradict the well-known theory.
P. A. Nikitin - One of the best experts on this subject based on the ideXlab platform.
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Acousto-optic Modulation of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
Journal of Infrared Millimeter and Terahertz Waves, 2020Co-Authors: P. A. Nikitin, Vasily V. Gerasimov, Vitaly B. VoloshinovAbstract:Acousto-optic modulation of terahertz free-electron laser radiation was investigated using diffraction on an acoustic wave in liquefied Sulfur Hexafluoride at room temperature. At the wavelength 130 μ m, the diffraction efficiency in Bragg regime of interaction 1% was obtained at 75 V driving electrical signal applied to the transducer terminals.
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Observation of Acousto-Optic Diffraction of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
IEEE Transactions on Terahertz Science and Technology, 2019Co-Authors: P. A. Nikitin, Boris A. Knyazev, Vitaly B. Voloshinov, Michael A. ScheglovAbstract:Diffraction of terahertz radiation on ultrasound in liquefied Sulfur Hexafluoride at room temperature was observed for the first time. The dependences of the diffraction efficiency on the sound frequency, angle of incidence, and amplitude of radio-frequency electrical signal applied to a piezo-transducer were studied. Deflection of diffracted radiation by an angle of $\text{10}^\circ$ was observed. It was found that the diffraction efficiency at room temperature is significantly (four times) higher than the one at 14 $^\circ$ C known from the literature. The obtained and published data on the acousto-optic diffraction in liquefied Sulfur Hexafluoride contradict the well-known theory.
Hermann Koch - One of the best experts on this subject based on the ideXlab platform.
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Sulfur Hexafluoride SF 6
2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008Co-Authors: M. Etter, Hermann KochAbstract:This article deals with the Sulfur Hexafluoride in high voltage applications for electrical insulation and electrical arc distinguishing when circuit breakers, ground switches, and disconnectors are operated. Sulfur Hexafluoride (SF6) is a colorless, odorless, non-toxic and non flammable gas. It is an extremely stable gas with high dielectric strength and excellent arc quenching properties making it an ideal for use in gas insulated substations (GIS). Virtually all substations being built today use SF6for circuit breakers and every GIS station relies on SF6 for insulation. At the same time, SF6 has been identified as a potent greenhouse gas, 22,500 times more effective at trapping infra-red radiation than an equivalent amount of CO2. There are no statutory requirements in the U.S. limiting the usage of SF6, but there are voluntary governments and private corporate program initiatives to better manage SF6 with the aim of reducing emissions.
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Sulfur Hexafluoride SF 6
2008 IEEE PES Transmission and Distribution Conference and Exposition, 2008Co-Authors: W. Degen, Hermann KochAbstract:Sulfur Hexafluoride (SF6) is a colorless, odorless, non-toxic and non flammable gas. The chemical and physical properties of SF6 as well as the environmental programs are discussed in greater detail in the following sections.
Vasily V. Gerasimov - One of the best experts on this subject based on the ideXlab platform.
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Acousto-optic Modulation of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature
Journal of Infrared Millimeter and Terahertz Waves, 2020Co-Authors: P. A. Nikitin, Vasily V. Gerasimov, Vitaly B. VoloshinovAbstract:Acousto-optic modulation of terahertz free-electron laser radiation was investigated using diffraction on an acoustic wave in liquefied Sulfur Hexafluoride at room temperature. At the wavelength 130 μ m, the diffraction efficiency in Bragg regime of interaction 1% was obtained at 75 V driving electrical signal applied to the transducer terminals.
Jian Zhang - One of the best experts on this subject based on the ideXlab platform.
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Experimental research on sealing performance of Sulfur Hexafluoride electrical equipment under low-temperature environment
IOP Conference Series: Materials Science and Engineering, 2018Co-Authors: R Zhang, Z. Q. Jiang, X. C. Zhu, Z. W. Gao, H. D. Zhang, Jian ZhangAbstract:It is discovered that the sealing performance of the Sulfur Hexafluoride electrical equipment worsens under low temperature, but research in the aspect is reported rarely when corresponding measures are adopted for improving the sealing performance of electrical equipment. Therefore, sealing and leakage test of Sulfur Hexafluoride electrical equipment was implemented under low-temperature environment according to the analysis on gas sealing methods of Sulfur Hexafluoride electrical equipment. Causes of gas leakage of Sulfur Hexafluoride electrical equipment under low temperature environment were analyzed according to test results. Effective measures were proposed for improving the gas sealing performance of the equipment, thereby providing valuable reference for gas sealing design, installation, operation maintenance and failure analysis of Sulfur Hexafluoride electrical equipment under low - temperature environment.
