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Wyszukujesz frazę "52.75.Kq" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Gas-Insulated Self-Breakdown Spark Gaps: Aspects on Low-Scattering and Long-Lifetime Switching
Autorzy:
Frey, W.
Sack, M.
Wuestner, R.
Mueller, G.
Powiązania:
https://bibliotekanauki.pl/articles/1807888.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.75.Kq
52.80.Mg
Opis:
The influence of the electric field distribution between the electrodes and the seed electron generation rate on the scattering of the breakdown voltage of $SF_{6}$-insulated spark gaps was investigated. The breakdown voltage scattering considerably can be reduced by applying large-gap-volume, uniform-field electrode profiles instead of spherical shaped electrodes. Moreover, uniform field electrode profiles exhibit an uniform discharge probability in the entire gap volume and following an almost uniform erosion of electrode material along the electrode's surface. This preserves electrode shape and switching performance of the spark gap for a long maintenance-free lifetime. Breakdown voltage scattering further can be reduced by increasing the seed electron generation in the gap by an auxiliary corona discharge adjacent to the main gap. The experimental observations are discussed on the basis of the volume time law for discharge initiation.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1016-1018
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical Characteristics of the Output Voltage in Compact Marx Generators
Autorzy:
Razi Kazemi, A.
Niayesh, K.
Powiązania:
https://bibliotekanauki.pl/articles/1807968.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.75.Kq
41.20.Gz
Opis:
Compact Marx generators are widely used as portable pulse generator in different industrial applications, where high power pulses with rise times of order of some tens of nanoseconds are needed. For those applications, closing switches with very short delay and jitter times have to be used. Considering the fact that the breakdown of spark gap is a statistical process, the delay times of the closing switches are statistical voltage-dependent parameters. As a result, the characteristics of the output voltage of the Marx generator, i.e. its amplitude and rise time, are also statistical parameters. In this paper, taking the statistical behaviour of the breakdown process in spark gaps into consideration, the statistical characteristics of the output voltage have been studied in detail.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1158-1159
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving Triggering Characteristics for a Surface-Flashover Triggered Vacuum Switch
Autorzy:
He, Z.
Wang, L.
Li, F.
Yao, W.
Dong, M.
Zhao, C.
Powiązania:
https://bibliotekanauki.pl/articles/1807889.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.80.Vp
52.75.Kq
52.25.Mq
Opis:
A surface-breakdown triggered vacuum switch with parallel disk electrodes and semiconductor surface flashover trigger electrode has many advantages, it is easy to be triggered and machined. The resistance of the trigger gap has been increased in terms of modifying the thickness of the semiconductor layer and improving coating process technology. The trigger gap resistance, trigger voltage and trigger waveforms were experimentally tested. The results show that the triggering characteristics can be improved by increasing the trigger resistance.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1019-1021
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SN-series Pseudospark Switches, Operating Completely without Permanent Heating. New Prospects of Application in Pulsed Power
Autorzy:
Bochkov, V.
Bochkov, D.
Dyagilev, V.
Ushich, V.
Powiązania:
https://bibliotekanauki.pl/articles/1807864.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.75.-d
52.77.Fv
84.32.Dd
52.75.Kq
Opis:
Since 1990s the process of exclusion of gas-discharge and vacuum switches (GDSs and VSs) from pulsed power systems has been conditioned by two major factors - insufficient service time and necessity to supply filament circuits of GDSs and VSs. In the report, design and long-term test results of pseudospark switches (PSSs) are presented. The PSSs are to a great extent free of the mentioned shortcomings; in particular, the switches are capable of operating without filament, providing a wide variety of perspective applications of the tubes in pulsed power.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 980-982
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Design and the First Test Results of a Fast LTD Stage
Autorzy:
Chen, L.
Zhou, L.
Zou, W.
Ren, J.
Li, Y.
Wu, S.
Xie, W.
Feng, S.
Deng, J.
Powiązania:
https://bibliotekanauki.pl/articles/1807988.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
84.70.+p
52.75.Kq
84.60.Ve
Opis:
Linear transformer driver stages are designed to be used as a primary energy storage in high power pulsed generators. In this report, the design and test results of the linear transformer driver stage prototype that delivers ≈100 kA fast pulse with 133 ns FWHM into a ≈0.87 Ω resistive load are described. This stage consists of 20 (100 kV, 20 nF) storage capacitors that are arranged in 10 identical bricks located evenly around the axis of the stage. Each brick contains two capacitors, a multi-gap switch, and the output connector that transfers the energy to the resistive load. The outer diameter of the stage is ≈1.5 m, at a length of ≈20 cm. The stage is developed to demonstrate the possibility of the fast linear transformer driver technology to create high power pulsed generators.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1186-1188
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pulsed Power Application of TDI-Type Pseudospark Switches
Autorzy:
Bochkov, V.
Bochkov, D.
Gnedin, I.
Panov, P.
Powiązania:
https://bibliotekanauki.pl/articles/1807939.pdf
Data publikacji:
2009-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.35.Bj
52.35.Lv
52.75.Kq
52.77.-j
47.35.-i
Opis:
The module of pulsed power electrohydraulic installation equipped with a technological tank having 2 working electrodes, storing energy up to 3 kJ at average power of 10 kW was constructed and tested. As power switching elements pseudospark switches of TDI-type were used. During the tests organic materials (flax straw) were processed. In the paper various factors, affecting PSS electrodes erosion, are considered. Valuable recommendations on providing the best service time of the switches are summarized. The major object of the investigations is the development of technological system capable of providing a continuous production process with power consumption up to hundreds of kWh with large volumes (up to several tons) processed materials transportation. The process continuity substantially reduces cost of processing, simplifies design, and improves operational characteristics of the device and finally increases competitiveness of the production.
Źródło:
Acta Physica Polonica A; 2009, 115, 6; 1118-1121
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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