CN204086403U - A kind of conductor resistance and resistivity test device thereof - Google Patents
A kind of conductor resistance and resistivity test device thereof Download PDFInfo
- Publication number
- CN204086403U CN204086403U CN201420489127.XU CN201420489127U CN204086403U CN 204086403 U CN204086403 U CN 204086403U CN 201420489127 U CN201420489127 U CN 201420489127U CN 204086403 U CN204086403 U CN 204086403U
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- China
- Prior art keywords
- resistance
- sample
- measured conductor
- acquisition module
- chip
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- 239000004020 conductor Substances 0.000 title claims abstract description 62
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound data:image/svg+xml;base64,<?xml version='1.0' encoding='iso-8859-1'?>
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000000034 methods Methods 0.000 description 2
- 238000010586 diagrams Methods 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solids Substances 0.000 description 1
Abstract
The utility model discloses a kind of conductor resistance and resistivity test device thereof, it is characterized in that it comprises constant current source (1), input-output unit (3), AD acquisition module (2) comprises single-chip microcomputer (2-1), sample resistance (2-2), measured conductor (2-3), sample resistance AD acquisition module (2-4), measured conductor AD acquisition module (2-5); Sample resistance AD acquisition module (2-4) comprises sampling first divider resistance (2-4-1), samples the second divider resistance (2-4-2), sample resistance comparison amplifier (2-4-3), sample resistance A/D chip (2-4-4); Measured conductor AD acquisition module (2-5) comprises tested first divider resistance (2-5-1), tested second divider resistance (2-5-2), measured conductor comparison amplifier (2-5-3), measured conductor A/D chip (2-5-4), the utility model reduces labour intensity, lightweight, volume is little, singlely to complete, powerful, operable automatically, can accurate analysis and judge measured conductor material situation.
Description
Technical field:
The utility model relates to a kind of conductor resistance and resistivity test device thereof, belongs to electric system substation equipment maintenance and repair technical field.
Background technology:
In power equipment handing-over and repair based on condition of component, the resistance of the conductor circuit such as transformer, switch and the measurement of resistivity are the effective means of checkout equipment state, and whether it can exist the defects such as Design and manufacture by discovering device, the problem such as to adulterate.But still adopt classic method and current and voltage method to measure to the measurement of conductor resistance and resistivity at present, on-the-spot to calculate, workload is very large, and owing to being subject to the table meter impact of precision and the error of personnel's eyes, cause measuring error comparatively large and work efficiency is very low.
Utility model content:
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and provides one to greatly reduce labour intensity, significantly reduce the weight and volume of measuring equipment, singlely can to complete, powerful, can automatic operation be carried out, can accurate analysis and judge the conductor resistance of material situation and the resistivity test device thereof of transformer, switch conductor.
The purpose of this utility model can be reached by following measure: a kind of conductor resistance and resistivity test device thereof, it is characterized in that it comprises constant current source, constant current source connects AD acquisition module, AD acquisition module connects input-output unit, and AD acquisition module comprises single-chip microcomputer, sample resistance, measured conductor, sample resistance AD acquisition module, measured conductor AD acquisition module; Sample resistance AD acquisition module comprises sampling first divider resistance, samples the second divider resistance, sample resistance comparison amplifier, sample resistance A/D chip; Measured conductor AD acquisition module comprises tested first divider resistance, tested second divider resistance, measured conductor comparison amplifier, measured conductor A/D chip; Sample resistance connects constant current source and sampling the first divider resistance respectively, samples the second divider resistance, and sample the first divider resistance, sample the second divider resistance connection sample resistance comparison amplifier, sample resistance comparison amplifier connects sample resistance A/D chip; Measured conductor connects constant current source and tested first divider resistance, tested second divider resistance respectively, tested first divider resistance, tested second divider resistance connect measured conductor comparison amplifier, measured conductor comparison amplifier connects measured conductor A/D chip, and sample resistance A/D chip, measured conductor A/D chip are connected with single-chip microcomputer respectively.
In order to realize the purpose of this utility model further, described input-output unit comprises printer, storer, display unit, button, and single-chip microcomputer connects printer, storer, display unit, button respectively.
The utility model can produce following good effect compared with the prior art: the utility model adopts integrated design, greatly reduce labour intensity, significantly reduce the weight and volume of measuring equipment, singlely measurement can be completed, powerful, automatic operation can be carried out, can accurate analysis and judge transformer, the material situation situation of switch conductor, be more suitable for onsite application, complicated loaded down with trivial details conductive material test is made to become more simple and convenient, substantially increase the efficiency of related work, thus be the defect of Timeliness coverage transformer, guarantee that solid foundation is established in device security stable operation.
Accompanying drawing illustrates:
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the circuit theory diagrams of AD acquisition module.
Embodiment: preferred forms of the present utility model is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of conductor resistance and resistivity test device (see Fig. 1-Fig. 2) thereof, it comprises constant current source 1, AD acquisition module 2 and input-output unit 3.AD acquisition module 2 comprises single-chip microcomputer 2-1, sample resistance 2-2, measured conductor 2-3, sample resistance AD acquisition module 2-4, measured conductor AD acquisition module 2-5; Sample resistance AD acquisition module 2-4 comprises sampling first divider resistance 2-4-1, samples the second divider resistance 2-4-2, sample resistance comparison amplifier 2-4-3, sample resistance A/D chip (ICL7135) 2-4-4; Measured conductor AD acquisition module 2-5 comprises tested first divider resistance 2-5-1, tested second divider resistance 2-5-2, measured conductor comparison amplifier 2-5-3, measured conductor A/D chip (ICL7135) 2-5-4.Sample resistance 2-2 connects constant current source 1 and sampling the first divider resistance 2-4-1 respectively, samples the second divider resistance 2-4-2, sample the first divider resistance 2-4-1, sample the second divider resistance 2-4-2 connection sample resistance comparison amplifier 2-4-3, sample resistance comparison amplifier 2-4-3 connects sample resistance A/D chip (ICL7135) 2-4-4; Measured conductor 2-3 connects constant current source 1 and tested first divider resistance 2-5-1, tested second divider resistance 2-5-2 respectively, tested first divider resistance 2-5-1, tested second divider resistance 2-5-2 connect measured conductor comparison amplifier 2-5-3, and measured conductor comparison amplifier 2-5-3 connects measured conductor A/D chip (ICL7135) 2-5-4.Input-output unit 3 comprises thermal printer 3-1, storer 3-2, display unit 3-3, button 3-4, and single-chip microcomputer 2-1 connects sample resistance A/D chip (ICL7135) 2-4-4, measured conductor A/D chip (ICL7135) 2-5-4, thermal printer 3-1, storer 3-2, display unit 3-3, button 3-4 respectively.
The utility model adopts 50A, 100A constant current source, and constant current source 1 electric current stable output is reliable, ripple and noise little, be convenient to Single-chip Controlling, power volume be little, perfect heat-dissipating.Be provided with stable sample resistance, connect measured conductor, sample resistance and measured conductor are connected in constant-current circuit, the voltage signal both being gathered by two-way A/D module, then pass through sectional area S (the unit mm of key-press input measured conductor
2), the temperature coefficient of length L (unit m), temperature T (unit ° C) and material (copper or aluminium), single-chip microcomputer calculates resistance and the resistivity of measured conductor according to the voltage signal values of above-mentioned parameter and collection, again this measurement data is stored in the storer that power down not easily loses, and is shown by display unit.The printable current measurement data of thermal printer and historical measurement data, be convenient to check and saving result.
As shown in Figure 2, constant current source 1 exports 50A or 100A electric current, flows through the sample resistance 2-2 of device internal stability and the measured conductor 2-3 of device outside, and both are relations of series connection.The voltage of sample resistance 2-2 is through sampling first divider resistance 2-4-1 and sampling the second divider resistance 2-4-2 dividing potential drop, achieve the decay of voltage signal, sampling the second divider resistance 2-4-2 both end voltage signal makes signal be amplified to 0.65V-1.9V through sample resistance comparison amplifier 2-4-3, then sample resistance A/D chip (ICL7135) 2-4-4 is inputed to, in like manner the voltage of measured conductor 2-3 is through tested first divider resistance 2-5-1 and tested second divider resistance 2-5-2 dividing potential drop, the voltage signal at tested second divider resistance 2-5-2 two ends makes signal be amplified to 0.65V-1.9V through measured conductor comparison amplifier 2-5-3, then measured conductor A/D chip (ICL7135) 2-5-4 is inputed to, now single-chip microcomputer (2-1) sends enabling signal to sample resistance A/D chip (ICL7135) 2-4-4 and measured conductor A/D chip (ICL7135) 2-5-4, sample resistance A/D chip ICL71352-4-4 and measured conductor A/D chip (ICL7135) 2-5-4 starts working, the analog voltage signal of input is converted to digital quantization value, then single-chip microcomputer 2-1 process is exported to respectively, the work overall process of Here it is AD acquisition module 2.
Input-output unit 3 comprises thermal printer 3-1, storer 3-2, display unit 3-3, button 3-4.Display unit 3-3 shows the interface information such as parameter, result that will input, and button 3-4 coordinates display unit 3-3 to complete sectional area S (unit mm
2), the isoparametric input of temperature coefficient of length L (unit m), temperature T (unit ° C) and material (copper or aluminium), single-chip microcomputer 2-1 gathers the resistivity when voltage signal values exported calculates conductor resistance and 20 ° of C according to these parameters and sample resistance A/D chip 2-4-4, measured conductor A/D chip 2-5-4, single-chip microcomputer 2-1 is stored into result in storer 3-2 again, now operation push-button 3-4, the printable current measurement data of thermal printer and historical measurement data, be convenient to check and saving result.Storer 3-2 is AT24C512, and it is power down not drop-out, after measurement mechanism powers on, historical measurement data query interface is entered by button 3-4 and display module 3-3, can be leafed through historical measurement data, now operation push-button 3-4, and thermal printer 3-1 still can print result.
Claims (2)
1. a conductor resistance and resistivity test device thereof, it is characterized in that it comprises constant current source (1), constant current source (1) connects AD acquisition module (2), AD acquisition module (2) connects input-output unit (3), and AD acquisition module (2) comprises single-chip microcomputer (2-1), sample resistance (2-2), measured conductor (2-3), sample resistance AD acquisition module (2-4), measured conductor AD acquisition module (2-5); Sample resistance AD acquisition module (2-4) comprises sampling first divider resistance (2-4-1), samples the second divider resistance (2-4-2), sample resistance comparison amplifier (2-4-3), sample resistance A/D chip (2-4-4); Measured conductor AD acquisition module (2-5) comprises tested first divider resistance (2-5-1), tested second divider resistance (2-5-2), measured conductor comparison amplifier (2-5-3), measured conductor A/D chip (2-5-4); Sample resistance (2-2) connects constant current source (1) and sampling the first divider resistance (2-4-1) respectively, samples the second divider resistance (2-4-2), sample the first divider resistance (2-4-1), sample the second divider resistance (2-4-2) and connect sample resistance comparison amplifier (2-4-3), sample resistance comparison amplifier (2-4-3) connects sample resistance A/D chip (2-4-4); Measured conductor (2-3) connects constant current source (1) and tested first divider resistance (2-5-1), tested second divider resistance (2-5-2) respectively, tested first divider resistance (2-5-1), tested second divider resistance (2-5-2) connect measured conductor comparison amplifier (2-5-3), measured conductor comparison amplifier (2-5-3) connects measured conductor A/D chip (2-5-4), and sample resistance A/D chip (2-4-4), measured conductor A/D chip (2-5-4) are connected with single-chip microcomputer (2-1) respectively.
2. a kind of conductor resistance according to claim 1 and resistivity test device thereof, it is characterized in that described input-output unit (3) comprises printer (3-1), storer (3-2), display unit (3-3), button (3-4), single-chip microcomputer (2-1) connects printer (3-1), storer (3-2), display unit (3-3), button (3-4) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489127.XU CN204086403U (en) | 2014-08-28 | 2014-08-28 | A kind of conductor resistance and resistivity test device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489127.XU CN204086403U (en) | 2014-08-28 | 2014-08-28 | A kind of conductor resistance and resistivity test device thereof |
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| CN204086403U true CN204086403U (en) | 2015-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198819A (en) * | 2014-08-28 | 2014-12-10 | 国家电网公司 | Conductor resistance and resistivity measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198819A (en) * | 2014-08-28 | 2014-12-10 | 国家电网公司 | Conductor resistance and resistivity measurement device |
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| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150828 |
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| EXPY | Termination of patent right or utility model |