CN2757136Y - Probe contact head for carbon product resistivity detection - Google Patents
Probe contact head for carbon product resistivity detection Download PDFInfo
- Publication number
- CN2757136Y CN2757136Y CN 200420055161 CN200420055161U CN2757136Y CN 2757136 Y CN2757136 Y CN 2757136Y CN 200420055161 CN200420055161 CN 200420055161 CN 200420055161 U CN200420055161 U CN 200420055161U CN 2757136 Y CN2757136 Y CN 2757136Y
- Authority
- CN
- China
- Prior art keywords
- copper
- resistivity
- utility
- model
- probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000523 sample Substances 0.000 title claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000010949 copper Substances 0.000 claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 claims abstract description 43
- 238000005259 measurement Methods 0.000 claims description 7
- 150000001879 copper Chemical class 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 239000011343 solid material Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
Images
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- Measuring Leads Or Probes (AREA)
Abstract
The utility model relates to a probe contact head for testing the resistivity of the carbon product, particularly an improved probe structure of a testing instrument for testing the resistance and the resistivity of the solid material. The utility model is particularly suitable for measuring the resistance and the resistivity of the carbon product. The utility model is characterized in that a probe contact head comprises an electric conduction copper plate, a flexible copper net, an elastic cushion and a pressing ring. The utility model can make the contact of the electric conduction plate and the carbon block changed into the soft contact, so that the contact become more close and the current is evenly led in. The utility model can reduce surface errors caused by the insufficient machine work and can realize the purpose of accurately measuring the resistivity under little pressure.
Description
Technical field
A kind of probe contacts that is used for the carbon product resistivity measurement relates to the architecture advances of probe of the testing tool of a kind of solid material resistance, resistivity, is specially adapted to the resistance of carbon product and the mensuration of resistivity.
Background technology
In the carbon element industry, resistivity is an important indicator of its carbonaceous product.It is related to Iron and Steel Production, and therefore particularly the aluminium energy resource consumption of producing and other performances of product often will measure the resistivity of goods.The mensuration of resistivity all adopts voltammetry both at home and abroad at present.Promptly lead to certain electric current at the two ends of sample, the voltage drop with voltage probe records certain distance calculates resistivity value according to sectional area again.Therefore, the factor that influences the determination of resistivity accuracy is a lot: the diameter of sample, and length, the distance between two probes, apart from the distance of sample end, the distribution of electric current in test etc. all can impact the mensuration of resistivity.
In the present domestic and international standard to the diameter of sample, length, the distance between two probes has all been made regulation apart from the distance of sample end.For electric current being evenly distributed in sample, the excellent contact mode is extremely important, therefore the sample machining precision is had higher requirements, and in order to make its contact good, needs pressurization.Sample processing out-of-flatness contacts when bad, easily causes electric current skewness on sample, causes measuring error big.Therefore general standard has been stipulated mismachining tolerance and the measurement point distance apart from the sample end.
Excellent contact depends on the smooth degree on two surfaces, if and a surface irregularity is arranged wherein, will have influence on the contact effect of surface of contact, measuring the current-carrying plate that resistivity uses generally speaking uses copper coin to make, can well the controller machining precision, and all the other its inner grain size differences of carbon material, processing personnel's level difference, the depth of parallelism at its machining precision and two ends will be affected.Therefore, when measuring resistivity, often on copper coin, impose severe pressure, make its contact closely.In fact, if when the depth of parallelism of charcoal piece and machining precision surpass the scope of regulation, big again pressure is difficult to also guarantee that its contact is good, and this just certainly will have influence on the comprehensive of electric current, influences the accuracy of determination of resistivity.
Summary of the invention
The purpose of this utility model is the deficiency that exists at above-mentioned prior art, and a kind of probe contacts that is used for the carbon product resistivity measurement that can effectively make specimen contact well, effectively improve the test accuracy rate with the tester probe is provided.
The purpose of this utility model is achieved through the following technical solutions.
A kind of probe contacts that is used for the carbon product resistivity measurement is characterized in that this probe contacts is made up of following structure:
Conductive copper plate-this conductive copper plate is a copper garden sheet, and this copper coin connects with the probe of tester;
Flexible copper mesh-this flexibility copper mesh wire side is a dome, and its outer is mutually neat with the copper coin outer of conduction;
Cushion-this cushion is rubber-like rubber blanket or sponge, is filled in the copper coin of conduction and the space that flexible copper mesh surrounds;
Pressure ring-this pressure ring is the copper ring sheet, adds that to be pressed in flexible copper online, and will be used for flexible copper by bolt and press conductive copper plate.
The utility model, the surface that contacts with the test carbon product is the flexible copper mesh by densification, by the buffering of cushion, can eliminate because the error that the machining precision deficiency causes realizes the soft surface of contact with sample when exerting pressure; Improved the accuracy of test.This device can make current-carrying plate become soft contact with contacting of charcoal piece, makes contact tightr, imports electric current uniformly, reduces the surface error that causes owing to the machine work deficiency, realizes the accurate mensuration of resistivity under very little pressure.
Description of drawings
Fig. 1 is a novel conductive apparatus structure synoptic diagram of the present utility model.
Fig. 2 is a novel conductive apparatus structure cut-open view of the present utility model.
Embodiment
A kind of probe contacts that is used for the carbon product resistivity measurement, this probe contacts comprise array structure down: this conductive copper plate of conductive copper plate 1-is a copper garden sheet, and this copper coin connects with the probe of tester; Flexible copper mesh 2-should flexibility copper mesh wire side be a dome, and its outer is mutually neat with the copper coin outer of conduction; This cushion of cushion 3-is rubber-like rubber blanket or sponge, is filled in the copper coin of conduction and the space that flexible copper mesh surrounds; This pressure ring of pressure ring 4-is the copper ring sheet, adds that to be pressed in flexible copper online, and will be used for flexible copper by bolt and press conductive copper plate.
During use this probe contacts is installed on the probe, flexible copper mesh contacts with specimen, and test signal by conductive copper plate and probe transmission, is finished test process.
Claims (1)
1. probe contacts that is used for the carbon product resistivity measurement is characterized in that this probe contacts is made up of following structure:
Conductive copper plate-this conductive copper plate is a copper garden sheet, and this copper coin connects with the probe of tester;
Flexible copper mesh-this flexibility copper mesh wire side is a dome, and its outer is mutually neat with the copper coin outer of conduction;
Cushion-this cushion is rubber-like rubber blanket or sponge, is filled in the copper coin of conduction and the space that flexible copper mesh surrounds;
Pressure ring-this pressure ring is the copper ring sheet, adds that to be pressed in flexible copper online, and will be used for flexible copper by bolt and press conductive copper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055161 CN2757136Y (en) | 2004-12-28 | 2004-12-28 | Probe contact head for carbon product resistivity detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055161 CN2757136Y (en) | 2004-12-28 | 2004-12-28 | Probe contact head for carbon product resistivity detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757136Y true CN2757136Y (en) | 2006-02-08 |
Family
ID=35965523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055161 Expired - Lifetime CN2757136Y (en) | 2004-12-28 | 2004-12-28 | Probe contact head for carbon product resistivity detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757136Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975890A (en) * | 2010-10-28 | 2011-02-16 | 哈尔滨工业大学 | Measuring method of electrician contact micro-resistance |
| CN102854223A (en) * | 2012-07-30 | 2013-01-02 | 中国人民公安大学 | Black handwriting authentication instrument |
| CN106996995A (en) * | 2016-01-22 | 2017-08-01 | 国网智能电网研究院 | A kind of flexible stylet |
-
2004
- 2004-12-28 CN CN 200420055161 patent/CN2757136Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975890A (en) * | 2010-10-28 | 2011-02-16 | 哈尔滨工业大学 | Measuring method of electrician contact micro-resistance |
| CN102854223A (en) * | 2012-07-30 | 2013-01-02 | 中国人民公安大学 | Black handwriting authentication instrument |
| CN106996995A (en) * | 2016-01-22 | 2017-08-01 | 国网智能电网研究院 | A kind of flexible stylet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141228 Granted publication date: 20060208 |