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Pocket sized tester for high voltage vacuum tube

A vacuum tube and tester technology, applied in vacuum gauges using ionization effect, the manufacture of discharge tubes/lamps, electrical components, etc. Questions over 10,000 yuan

Inactive Publication Date: 2005-11-09
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of mining electromechanical products, users of vacuum tubes do not have equipment to measure the quality of vacuum tubes, and cannot regularly test the quality of vacuum tubes
Only when there is a problem with the quality of the vacuum tube, it will be repaired and replaced. For safety reasons, the method of regularly scrapping the vacuum tube is usually used to ensure the reliability of the electrical equipment. Many good-quality vacuum tubes are virtually eliminated, causing a lot of waste.
The vacuum instrument produced by Chengdu Instrument Factory, (see China Instrument Equipment Information Website: www.instrument.com.cn ), the models are ZDZ-1A (Leibao regulation) and ZDZ-52 (domestic regulation), the measuring range is 0.1-100000Pa, they are all designed by measuring the gas pressure, and the finished vacuum tube cannot be detected
The models of vacuum tube leak detectors include ZLS-23, ZLS-24, ZLS-26, etc., which use helium gas penetration for indirect measurement. more than 100,000 yuan)
The existing "intelligent ultra-high vacuum cold cathode ionization gauge controller" patented technology, the high voltage level is too low (only 3300V), and due to the limitations of the formula for calculating the relationship between discharge current and vacuum degree, its applicable measurement field is limited. big limit

Method used

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  • Pocket sized tester for high voltage vacuum tube
  • Pocket sized tester for high voltage vacuum tube
  • Pocket sized tester for high voltage vacuum tube

Examples

Experimental program
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Effect test

Embodiment Construction

[0008] Such as figure 1 As shown, after the AC voltage is input, the DC voltage V is output through the regulated power supply 1 0 After passing through the isolation circuit 2, the pulse signal generation circuit 3 is sent to generate a high-voltage pulse with a steep rising edge. After passing through the boost rectification circuit 4 and the filter circuit 5, it is output to the output voltage division sampling circuit 6, and its sampling voltage output is connected to the display circuit 7. and display the DC high voltage V 1 (or DC voltage V 2 ).

[0009] The vacuum tube to be tested is connected to V 1 (or V 2 ) and the ground. After the power is turned on, the voltage indicated by the display voltmeter is the breakdown voltage value of the vacuum tube under test. The higher the breakdown voltage value, the higher the vacuum degree or the fewer conductive ions, the better the quality of the vacuum tube. When the measured breakdown voltage value is less than the s...

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Abstract

A pocketable high-voltage vacuum tube tester based on high-voltage breakdown characteristics to measure the breakdown voltage of vacuum tube is composed of voltage-stabilized power supply, isolating circuit, pulse signal generator, step-up rectification circuit, filter, output sampling circuit and display circuit. Its advantage is high speed and efficiency.

Description

(1) Technical field [0001] The invention relates to a vacuum tube measuring device, in particular to a pocket high-voltage vacuum tube tester for testing the quality of the vacuum tube by utilizing the high-voltage electric breakdown characteristic. (2) Background technology [0002] At present, to detect the quality of the vacuum tube, only when the vacuum tube is produced, the vacuum pump is used to pump air, and the vacuum degree of the vacuum tube is measured with an air pressure vacuum degree measuring instrument. For the vacuum tube that has been formed, it is impossible to measure the vacuum degree in the airtight container except for the complicated leak detection method. There is no report about an instrument that can detect the quality of formed vacuum tube products. In terms of mining electromechanical products, users of vacuum tubes do not have equipment to measure the quality of vacuum tubes, so they cannot regularly test the quality of vacuum tubes. Only when...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L21/30H01J9/00
Inventor 张清辨
Owner XIAMEN UNIV
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