CN105182198A - Electrode device capable of measuring thin film electric breakdown performance at variable temperature - Google Patents
Electrode device capable of measuring thin film electric breakdown performance at variable temperature Download PDFInfo
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- CN105182198A CN105182198A CN201510581410.4A CN201510581410A CN105182198A CN 105182198 A CN105182198 A CN 105182198A CN 201510581410 A CN201510581410 A CN 201510581410A CN 105182198 A CN105182198 A CN 105182198A
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Abstract
The invention relates to an electrode device capable of measuring thin film electric breakdown performance at variable temperature. The electrode device is characterized by comprising a high-voltage electrode, a ground electrode, a temperature sensor, an electric heating plate, a feedback type precise temperature controller, a micrometer thickness gauge and a lever switch, wherein the temperature sensor is arranged inside the high-voltage electrode, the electric heating plate is sealed in the ground electrode, and the lever switch is connected with the high-voltage electrode and used for controlling height of the high-voltage electrode. The electrode device can obtain thickness information of a thin film while testing thin film electric breakdown performance, is more accurate in temperature control, and has the advantages of simple operation, high experimental precision and high efficiency.
Description
Technical field
The present invention relates to a kind of electrode assembly, be specifically related to the electrode assembly that a kind of temperature-changeable measures thin-film electro breakdown performance.
Background technology
At present, the method of testing film electric breakdown performance is placed on by film between two metal electrodes, be placed on by whole electrode system in the medium of dimethyl silicon oil or the insulation of cable wet goods, then to two electrodes, one of them applies high voltage, another one ground connection; When applying voltage and reaching certain value, film breakdown, draws the voltage breakdown of film thus, then divided by the thickness of film, is the electric breakdown field strength of film.When testing alternating temperature electric breakdown performance, usually whole electrode system being placed in electric heating constant-temperature water-bath tank, utilizing electric heating constant-temperature water-bath tank to heat it, be heated to and temperature requiredly carry out electric breakdown performance test again.
The shortcoming of this kind of method is: first, alternating temperature electric breakdown performance test is owing to being utilize electric heating constant-temperature water-bath tank to heat dimethyl silicon oil or cable wet goods insulating medium, and then conduct heat to electrode system, but the heat conduction rate of these insulating mediums is comparatively slow, can not be sensitive the temperature of electrode system is reflected on electric heating constant-temperature water-bath tank; Temperature when this just causes experiment controls out of true, brings error, affect experimental result to experiment; Secondly, doing Caloric test needs whole electrode system to be placed in electric heating constant-temperature water-bath tank, and rely on water bath to heat, also want its thickness of manual test after film breakdown, experimental implementation is cumbersome, not easy.
Summary of the invention
The present invention, in order to solve above-mentioned deficiency, devises the electrode assembly that a kind of temperature-changeable measures thin-film electro breakdown performance.
The present invention is that to solve the problems of the technologies described above the electrode assembly of design as follows:
A kind of temperature-changeable measures the electrode assembly of thin-film electro breakdown performance, it comprises high-field electrode, ground electrode, temperature sensor, electric heating sheets, the accurate temperature controller of reaction type, thousand points of thicknessmeters, lever switches, described high-field electrode built-in temperature sensor, described electric heating sheets is encapsulated in ground electrode, described lever switch is connected with high-field electrode, for controlling the height of high-field electrode.
Wherein:
High-field electrode adopts heatproof, oil resistant, the stainless steel material of high heat conduction is made, and surface finish is smooth, and specification is the right cylinder of diameter 25mm, high 30mm, inner embedding temperature sensor.
Ground electrode adopts heatproof, oil resistant, the stainless steel material of high heat conduction is made, and surface finish is smooth, and specification is diameter 75mm, thickness is the right cylinder of 10mm, inner embedding heating arrangement.
Temperature sensor: adopt high heat conduction, heatproof material is packaged in high-field electrode inside.Temperature sensor error is less than 0.01 degree Celsius.
Thousand points of thicknessmeter measuring accuracy 0.001mm, measurement range 0 ~ 10mm.
the electrode assembly advantage that temperature-changeable of the present invention measures thin-film electro breakdown performance is as follows:
The present invention has following beneficial effect: first, and alternating temperature electric breakdown experiment utilizes electrode directly to film heating, and the temperature reflecting film that can be sensitive, improves the accuracy of test result; Secondly, do not need whole electrode system to be placed in electric heating constant-temperature water-bath tank, also without the need to its thickness of manual test after film breakdown, therefore experimental implementation is simple, and conventional efficient obtains and improves.
Accompanying drawing explanation
Fig. 1 is the electrode assembly schematic diagram that temperature-changeable of the present invention measures thin-film electro breakdown performance.
Embodiment
See Fig. 1, the present invention relates to the electrode assembly that a kind of temperature-changeable measurement thin-film electro punctures, it comprises high-field electrode 1, ground electrode 2, temperature sensor 3, electric heating sheets 4, the accurate temperature controller of reaction type 5, thousand points of thicknessmeters 6, lever switches 7, described high-field electrode 1 built-in temperature sensor 3, described electric heating sheets 4 is encapsulated in ground electrode 2, described lever switch 7 is connected with high-field electrode 2, for controlling high-field electrode 2 height.
When testing film electric breakdown field strength, the high-field electrode 1 of device and ground electrode 2 are immersed in dimethyl silicon oil or cable wet goods insulating medium, liquid level exceeds high-field electrode 1; Press lever switch 7 and lift high-field electrode 1, be placed on by surveyed film between two electrodes 1 and 2, put down high-field electrode 1, the registration now on thousand points of thicknessmeters 6 is the thickness of film; The accurate temperature controller 5 of use reaction type arranges the temperature needed for experiment, now electric heating sheets 4 starts heating, after temperature reaches, by ground electrode 2 ground connection, high-field electrode 1 and high-pressure side are connected, film sample is pressurizeed, uniform speed slow boosts, until film breakdown, records the voltage puncturing the moment, divided by the thickness of film, i.e. the breakdown field strength of film for this reason.
High-field electrode adopts heatproof, oil resistant, the stainless steel material of high heat conduction is made, and surface finish is smooth, and specification is the right cylinder of diameter 25mm, high 30mm, inner embeds temperature sensor, during in order to test temperature Real-time Collection and feed back to temperature controller.
Ground electrode adopts heatproof, oil resistant, the stainless steel material of high heat conduction is made, and surface finish is smooth, and specification is diameter 75mm, thickness is the right cylinder of 10mm, and inner embedding heating arrangement, is heated to the temperature of accurate temperature controller setting to film style.
Temperature sensor: adopt high heat conduction, heatproof material is packaged in high-field electrode inside.Temperature sensor error is less than 0.01 degree Celsius, as the input end of the accurate temperature controller of reaction type, realizes Real-time Collection and the feedback of temperature during experiment.
It is inner that electric heating sheets is placed in electric level, evenly places, and realizes electric level homogeneous heating over the ground.
The accurate temperature controller of reaction type shows experimental temperature and design temperature in real time, and have and add gentle constant temperature adjusting function, temperature control scope is 0 ~ 180 degree Celsius.
Thousand points of thicknessmeter measuring accuracy 0.001mm, measurement range 0 ~ 10mm.Thicknessmeter test thickness two contacts respectively with high-field electrode and ground electric level compact siro spinning technology, ensure test thickness accuracy.
Lever switch is insulating bar, presses lever switch in order to lift high-field electrode, controls two electrode distances.
Temperature sensor and electric heating sheets are before being packaged in electrode interior, and the insulating material of employing oil resistant, high temperature resistant, high heat conduction is tightly coated by it, avoid temperature sensor and electric heating sheets being destroyed when applying high pressure to electrode.The connecting link of high-field electrode and thicknessmeter adopts oil resistant, resistant to elevated temperatures insulating material, avoids thickness measuring instrument being destroyed when applying high pressure to electrode.
Claims (4)
1. the present invention relates to the electrode assembly that a kind of temperature-changeable measures thin-film electro breakdown performance, it is characterized in that, it comprises high-field electrode (1), ground electrode (2), temperature sensor (3), electric heating sheets (4), the accurate temperature controller (5) of reaction type, thousand points of thicknessmeters (6), lever switch (7), described high-field electrode (1) built-in temperature sensor (3), described electric heating sheets (4) is encapsulated in ground electrode (2), described lever switch (7) is connected with high-field electrode (2), for controlling the height of high-field electrode (2).
2. high-field electrode as claimed in claim 1, it is characterized in that, it adopts heatproof, oil resistant, the stainless steel material of high heat conduction makes, surface finish is smooth, and specification is the right cylinder of diameter 25mm, high 30mm, innerly embeds temperature sensor.
3. ground electrode as claimed in claim 1, it is characterized in that, it adopts heatproof, oil resistant, the stainless steel material of high heat conduction makes, surface finish is smooth, and specification is diameter 75mm, thickness is the right cylinder of 10mm, innerly embeds heating arrangement.
4. temperature sensor as claimed in claim 1, it is characterized in that, it adopts high heat conduction, heatproof material is packaged in high-field electrode inside, temperature sensor error is less than 0.01 degree Celsius, as claimed in claim 1 thousand points of thicknessmeters, it is characterized in that, its measuring accuracy 0.001mm, measurement range 0 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510581410.4A CN105182198A (en) | 2015-09-14 | 2015-09-14 | Electrode device capable of measuring thin film electric breakdown performance at variable temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510581410.4A CN105182198A (en) | 2015-09-14 | 2015-09-14 | Electrode device capable of measuring thin film electric breakdown performance at variable temperature |
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| CN105182198A true CN105182198A (en) | 2015-12-23 |
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| CN201510581410.4A Pending CN105182198A (en) | 2015-09-14 | 2015-09-14 | Electrode device capable of measuring thin film electric breakdown performance at variable temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358224A (en) * | 2018-09-30 | 2019-02-19 | 天津大学 | Polypropylene film flashover voltage measuring device and method under a kind of temperature gradient |
| CN110389286A (en) * | 2018-12-20 | 2019-10-29 | 哈尔滨理工大学 | A kind of measurement method for solid dielectric test print disruptive field intensity |
-
2015
- 2015-09-14 CN CN201510581410.4A patent/CN105182198A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358224A (en) * | 2018-09-30 | 2019-02-19 | 天津大学 | Polypropylene film flashover voltage measuring device and method under a kind of temperature gradient |
| CN110389286A (en) * | 2018-12-20 | 2019-10-29 | 哈尔滨理工大学 | A kind of measurement method for solid dielectric test print disruptive field intensity |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |
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| WD01 | Invention patent application deemed withdrawn after publication |