CN201408238Y - Square wave cable wire breakage position indicator - Google Patents
Square wave cable wire breakage position indicator Download PDFInfo
- Publication number
- CN201408238Y CN201408238Y CN2009200850157U CN200920085015U CN201408238Y CN 201408238 Y CN201408238 Y CN 201408238Y CN 2009200850157 U CN2009200850157 U CN 2009200850157U CN 200920085015 U CN200920085015 U CN 200920085015U CN 201408238 Y CN201408238 Y CN 201408238Y
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- CN
- China
- Prior art keywords
- square wave
- wire breakage
- position indicator
- input end
- coupled circuit
- 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 - Fee Related
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- Locating Faults (AREA)
Abstract
A square wave cable wire breakage position indicator belongs to a cable tester, and mainly solves the shortcomings of big measurement errors, difficult position and points finding and big waste of anexisting capacitor comparative method which is used to measure wire breakage points of cables. The square wave cable wire breakage position indicator is characterized by comprising a square wave signal unit consisting of a square wave signal generator, a coupled circuit and a signal reshaping amplifier, and an ondoscope, wherein the output end of the square wave signal generator is connected withthe input end of the coupled circuit, the output end of the coupled circuit is connected with the input end of the signal reshaping amplifier through a testing head, and the output end of the signal reshaping amplifier is connected with the input end of the ondoscope. The test of the square wave cable wire breakage position indicator is not influenced by linear stability of a cable structure and an insulating layer, and has the advantages of high measurement precision, convenient operation and accurate positioning.
Description
Technical field
The utility model belongs to the wireline test instrument, specifically a kind of orientator that is used for test cable conductor broken string position.
Background technology
Existing location to cable conductor, power cable conductor broken string position is to adopt the electric capacity relative method to measure, because the measuring accuracy of this method is influenced by the Linear Stability of the construction of cable and insulation course directly, therefore, measuring error is big, few tens meters, many reaches up to a hundred meters, makes the location look for a difficulty.Especially for the cable of multiple spot broken string, measure owing to a cable can only be divided into multistage, therefore, not only can't directly measure, and measuring operation is loaded down with trivial details, waste is big.
Summary of the invention
The purpose of this utility model is the square wave cable break orientator that a kind of measuring accuracy height, easy to operate, accurate positioning are provided at above-mentioned deficiency.
The utility model is achieved in that and comprises square-wave signal unit and the oscillograph that is made of square wave signal generator, coupled circuit and signal shaping amplifier, wherein, the output terminal of square wave signal generator is connected with the input end of coupled circuit, the output terminal of coupled circuit head after tested is connected with the input end of signal shaping amplifier, and the output terminal of signal shaping amplifier is connected with oscillographic input end.
Because the utility model is only measured the conductor of cable, therefore, test is not influenced by the Linear Stability of the construction of cable and insulation course, and, cable to multiple spot broken string also can accurately position successively, has the advantage of measuring accuracy height, easy to operate, accurate positioning.
Description of drawings
Fig. 1 is the utility model structure and user mode synoptic diagram.
Fig. 2 is a construction of cable synoptic diagram.
Among the figure: 1--square-wave signal unit (1A--square wave signal generator, 1B--coupled circuit, 1C--signal shaping amplifier), 2--oscillograph, 3--measuring head, 4--cable (4A--fault conductor, 4B--fault conductor end points, 4C and 4D--fault conductor break point, 4E--normal conductor, 4F and 4G--normal conductor end points).
Embodiment
Further specify the utility model below in conjunction with drawings and Examples.
Embodiment: the output terminal of square wave signal generator 1A is connected with the input end of coupled circuit 1B, the output terminal of coupled circuit 1B 3 connects and composes square-wave signal unit 1 with the input end of signal shaping amplifier 1C after tested, and the output terminal of the signal shaping amplifier 1C in the square-wave signal unit 1 is connected with the input end of oscillograph 2 promptly becomes the utility model.
During measurement, the fault conductor end points 4B of fault conductor 4A in measuring head 3 and the cable 4 is connected, the square-wave signal that square wave signal generator 1A produces arrives fault conductor end points 4B through coupled circuit 1B, after square-wave signal propagates into fault conductor break point 4C along fault conductor 4A, square-wave signal is back to fault conductor end points 4B along former approach, and after signal shaping amplifier 1C shaping is amplified, be transported to oscillograph 2, can measure square-wave signal by oscillograph 2 and output to fault conductor break point 4C and turn back to time of fault conductor end points 4B from fault conductor break point 4C from fault conductor end points 4B.Output to normal conductor end points 4G by the square-wave signal that can measure normal conductor 4E with quadrat method from normal conductor end points 4F and reach the time that turns back to normal conductor end points 4F from normal conductor end points 4G.Can calculate the position of conductor break point in cable 4 by two time ratios.According to same quadrat method, can find out fault conductor break point 4D, can the cable of multiple spot broken string be positioned successively.
Claims (1)
1, a kind of square wave cable break orientator, it is characterized in that comprising the square-wave signal unit and the oscillograph that constitute by square wave signal generator, coupled circuit and signal shaping amplifier, wherein, the output terminal of square wave signal generator is connected with the input end of coupled circuit, the output terminal of coupled circuit head after tested is connected with the input end of signal shaping amplifier, and the output terminal of signal shaping amplifier is connected with oscillographic input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200850157U CN201408238Y (en) | 2009-04-17 | 2009-04-17 | Square wave cable wire breakage position indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200850157U CN201408238Y (en) | 2009-04-17 | 2009-04-17 | Square wave cable wire breakage position indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201408238Y true CN201408238Y (en) | 2010-02-17 |
Family
ID=41679176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200850157U Expired - Fee Related CN201408238Y (en) | 2009-04-17 | 2009-04-17 | Square wave cable wire breakage position indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201408238Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743999A (en) * | 2013-12-30 | 2014-04-23 | 中航华东光电有限公司 | Device and method for finding breakpoint position of electric wire/cable |
| CN108627727A (en) * | 2017-03-15 | 2018-10-09 | 南京梅山冶金发展有限公司 | The detection device and detection method of the disconnected core of electric LHD Randomized Cable |
-
2009
- 2009-04-17 CN CN2009200850157U patent/CN201408238Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743999A (en) * | 2013-12-30 | 2014-04-23 | 中航华东光电有限公司 | Device and method for finding breakpoint position of electric wire/cable |
| CN108627727A (en) * | 2017-03-15 | 2018-10-09 | 南京梅山冶金发展有限公司 | The detection device and detection method of the disconnected core of electric LHD Randomized Cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20170417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |