Pulse high-voltage measuring device
A pulse high voltage and measuring device technology, which is applied in the direction of measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve the problems of low efficiency in troubleshooting error devices, high cost of pulse high voltage measurement and measurement, and save a lot of time and materials Effect of cost and efficiency improvement
Pending Publication Date: 2020-08-14
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology
[0003] Aiming at the deficiencies in the prior art, the present invention proposes a pulse high-voltage measurement method, aiming to solve the problems of high cost of pulse high-voltage measurement and low efficiency of checking wrong devices in the prior art
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Embodiment 1
[0028] A measurement method of pulsed high voltage, see figure 1 and figure 2 , including a high-voltage pulse source 1; the output voltage of the high-voltage pulse source 1 is 160kV, the rise time of the voltage wave is not more than 30ns, and the pulse width of the voltage wave is 100ns (the pulse power source 1 here is the prior art, so it will not be repeated). The pulse high-voltage source 1 and the metal flange (2-1, 2-2) are hermetically sealed, the metal flange (2-1, 2-2) and the load 6 are vacuum-sealed, and the ring electrode 3 adopts Made of pure copper, the insulating partition 5 is made of polytetrafluoroethylene. Between the ring electrode 3 and the high-voltage electrode 4, the high-voltage terminal capacitance C is formed by an insulating partition 5 HV , In the formula, ε 1 =2.04×10 -13 F / cm is polytetrafluoroethylene dielectric constant; l is the thickness of ring electrode 3; r a and r b are the outer diameter and inner diameter of the insulating p...
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The invention discloses a pulse high-voltage measuring device comprising an annular electrode used as a common electrode and a measuring electrode of two series capacitors in a loop; two sides of theannular electrode are respectively provided with annular end faces, one annular end face side is provided with a pulse high-voltage source, the other annular end face side is provided with a load; a high-voltage electrode and an insulating partition plate axially penetrate through the inner diameter of the annular electrode to be connected with the pulse high-voltage source and the load at two ends; and the insulating partition plate surrounds the outer surface of the high-voltage electrode. The inner diameter surface of the annular electrode and the high-voltage electrode form a high-voltageend capacitor through an insulating partition plate; insulating films and metal flanges are arranged on the annular end faces on the two sides of the annular electrode, so that the two side end facesof the annular electrode and the metal flanges form a series-connected low-voltage end capacitor through the annular films. And the outer sides of the annular electrode and the two flanges are surrounded by an annular metal loop disc equivalent to a metal sealing ring, so that the annular electrode has a voltage division function, and an unexpected effect is achieved.
Description
technical field [0001] The invention relates to the field of high voltage measurement, more specifically, it relates to a pulse high voltage measuring device. Background technique [0002] In pulse high voltage measurement technology, an oscilloscope is generally used for measurement, but the range of the oscilloscope is limited, which is not enough to measure hundreds or even thousands of times the pulse high voltage. If the oscilloscope is used to measure the high voltage directly, the oscilloscope will be burned. In order to accurately measure the high voltage output by the system, it is often used to connect an attenuator in series at the front end of the oscilloscope to meet its range. For example, it is necessary to measure a 160KV high voltage. According to the attenuation of 10 times of the attenuator, more than 1,000 attenuators need to be connected in series. This is not only troublesome in construction, but also the internal circuit components of the attenuator ar...
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IPC IPC(8): G01R19/00G01R15/16G01R15/04G01R13/00
CPCG01R19/0084G01R15/16G01R15/04G01R13/00
Inventor 邹俭郑侠王川张天爵
Owner CHINA INSTITUTE OF ATOMIC ENERGY