Coaxial structure capacitive divider for measuring ns high voltage pulse

A technology of high-voltage pulse and structural capacitance, applied in the direction of voltage divider, etc., can solve the problems of large structural inductance, limiting the response bandwidth of voltage divider, etc., and achieve the effect of improving the response frequency

Inactive Publication Date: 2009-05-06
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned voltage divider is mainly composed of lumped parameter elements, and due to structural limitat...

Method used

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  • Coaxial structure capacitive divider for measuring ns high voltage pulse
  • Coaxial structure capacitive divider for measuring ns high voltage pulse
  • Coaxial structure capacitive divider for measuring ns high voltage pulse

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Embodiment Construction

[0011] Refer to the attached image 3 Introduce the embodiment of the present invention:

[0012] A coaxial distributed capacitance voltage divider for measuring high-voltage ns pulses. The high-voltage electrode 1, the middle electrode 6, and the ground electrode 7 can be made of materials with good conductivity such as brass. The high-voltage sealing pressure cap 3, the main insulating column 5, The outer protective cover 8, the insulating ring 10, and the low-voltage sealing cap 12 can be made of plexiglass insulating material, the sealing rubber ring 2, the sealing rubber ring 9, and the sealing rubber ring 11 can be made of O-rings made of fluorine rubber, and the insulating oil 4 Use insulating oil with good performance such as capacitor oil, connect the high-voltage electrode 1 to the point to be tested, connect the ground electrode 7 to the ground potential of the point to be tested, connect the middle electrode 6 to a matching network, and then connect it to the oscil...

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Abstract

The invention relates to a coaxial capacitive divider for measuring a nanosecond high-voltage pulse, which belongs to the structural design of a divider for a high-voltage pulse device. The divider comprises high voltage electrodes, airproof rubber rings, a high-voltage seal cavity cap, insulating oil, a main insulated column, an intermediate electrode, a ground electrode, an external protective cover, an insulating ring and a low-voltage seal cavity cap and adopts the connection proposal that the high voltage electrodes are installed in the main insulated column by screw threads, the main insulated column is connected with the intermediate electrode by screw threads, the intermediate electrode is installed in the ground electrode by screw threads, the ground electrode is installed in the low-voltage seal cavity cap by screw threads, and the external protective cover is installed in the high-voltage seal cavity cap by screw threads. The invention has the advantages that as capacitors are distributed by the coaxial structure and are used as voltage division members, the electrical inductance of lead-in wires on both ends of one lumped parameter capacitor is reduced, and the electrical inductance of four lead-in wires of the two capacitors is reduced, thus the invention can increase the response frequency of the divider to a great extent.

Description

technical field [0001] The invention relates to a coaxial capacitor voltage divider for measuring high-voltage nanosecond pulses, belonging to a voltage divider structure among high-voltage pulse devices. Background technique [0002] Various high-voltage pulse voltage dividers have been widely used in related fields, including resistive voltage divider, capacitive voltage divider, and resistance-capacitance voltage divider. In order to improve their response frequency, they are usually made into a coaxial structure. However, the above-mentioned voltage divider is mainly composed of lumped parameter elements, and due to structural limitations, the lumped parameter element has a large structural inductance, which limits the response bandwidth of the voltage divider. No record identical or similar to the present invention has been found after consulting relevant materials. Contents of the invention [0003] The purpose of the present invention is to provide a coaxial distri...

Claims

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Application Information

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IPC IPC(8): G01R15/04
Inventor 孟范江郭劲李世明
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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