CN203178399U - Cable detector - Google Patents
Cable detector Download PDFInfo
- Publication number
- CN203178399U CN203178399U CN 201320205025 CN201320205025U CN203178399U CN 203178399 U CN203178399 U CN 203178399U CN 201320205025 CN201320205025 CN 201320205025 CN 201320205025 U CN201320205025 U CN 201320205025U CN 203178399 U CN203178399 U CN 203178399U
- Authority
- CN
- China
- Prior art keywords
- cable
- electronic switch
- power supply
- indicator
- terminals
- 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
Links
- 238000012360 testing method Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 208000028659 discharge Diseases 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates a cable detector including a detection circuit, an indication circuit and a power source. The detection circuit includes two wiring terminals connected with the cable to be detected and a preset node, wherein one wiring terminal is connected with the preset node and the other wiring terminal is connected with the positive pole of the power source. The indication circuit includes an indicator and an electronic switch, wherein the indicator and the electronic switch are serially connected to the two poles of the power source and a control terminal of the electronic switch is connected with the preset node. When the cable is detected, the wiring terminals provide the electronic switch with a control signal through the cable to be detected to control the on-off state of the electronic switch so that whether the cable is normal or not can be judged according to according to the detection of the working state of the indication circuit. The cable detector is simple in structure, flexible in operation and applicable to different working environments and thus working efficiency is improved.
Description
Technical field
The utility model relates to a kind of cable detector.
Background technology
In process of production the break-make of core being detected at present is to adopt digital multimeter to realize mostly, goes measured resistance value to judge the cable core break-make with the resistance gear of digital multimeter; Often because there is not fixing testing platform in the production scene, need hand-held the measurement, measuring heart yearn will be connected with the test pencil of digital multimeter, one of every measurement will be watched the actual displayed numerical value on the multimeter, it is careless sometimes to work frequently, will cause digital multimeter to come off and fall on the ground, and causes instrument to damage, misjudgment phenomenon often appears, inefficiency.
The utility model content
The purpose of this utility model provides a kind of cable detector, uses multimeter to cause occurring easily erroneous judgement and ineffective problem to solve present cable detection.
The utility model provides a kind of cable detector for solving the problems of the technologies described above, this cable detector comprises testing circuit, indicating circuit and power supply, testing circuit comprises for two terminals that are connected with cable under test and sets node, terminals link to each other with the setting node, another terminals link to each other with the positive pole of power supply, indicating circuit comprises indicator and electronic switch, and indicator and electronic switch are connected on the two-stage of power supply, and the control end of electronic switch links to each other with the setting node.
Described electronic switch is transistor, and the emitter of transistor links to each other with the negative pole of power supply, and collector links to each other with indicator, and base stage links to each other with the setting node.
Described cable detector also comprises discharge resistance, and this discharge resistance one terminates to the positive pole of power supply, and the other end is received the base stage of transistor, forms discharge loop with two terminals and tested cable, is used for discharging to tested cable.
Described indicator comprises light emitting diode and/or hummer.
The beneficial effects of the utility model are: the comprising for two terminals that are connected with cable under test and set node of the utility model cable detector, terminals link to each other with the setting node, another terminals link to each other with the positive pole of power supply, indicating circuit comprises indicator and electronic switch, indicator and electronic switch are connected on the two-stage of power supply, and the control end of electronic switch links to each other with the setting node.During detection, terminals provide a control signal by cable to be detected to electronic switch, the conducting of control electronic switch, thus judge according to the duty that detects indicating circuit whether cable is normal.The utility model circuit structure is simple, and flexible operation can be applicable to the different operating environment, increases work efficiency.
Description of drawings
Fig. 1 is the circuit diagram of the utility model cable detector.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Cable detector of the present utility model comprises for two terminals that are connected with cable under test and sets node, terminals link to each other with the setting node, another terminals link to each other with the positive pole of power supply, indicating circuit comprises indicator and electronic switch, indicator and electronic switch are connected on the two-stage of power supply, and the control end of electronic switch links to each other with the setting node.We select transistor for use the electronic switch here, are operated on off state according to transistor, realize song (hummer) and light-emitting flash (light emitting diode) function.As shown in Figure 1, the emitter of transistor links to each other with the negative pole of power supply, one end of indicator links to each other with positive source, the other end is connected to the collector of transistor, terminals 1 link to each other with the positive pole of power supply, terminals 2 link to each other with the base stage of transistor by setting node, and terminals 1 and terminals 2 are respectively applied to the two ends with tested cable.Indicator comprises light emitting diode D1 and hummer LS1, light emitting diode D1 and hummer LS1 are attempted by between the collector of the positive pole of power supply and transistor, also be serially connected with a divider resistance R2 on the light emitting diode D1, circuit work power has 1.5 volts of dry cells of 4 joints to provide, transistor adopts 9103 types, its parameter is that collector emitter voltage is 25V, collector to-boase voltage is 45V, emitter base voltage is 0.7V, collector current Ic Max 0.5A dissipated power, cable under test cable core length is 2～4Km, resistance value is 2.4～5.8K Ω, the longest according to manufacturing technique requirent institute survey line core length is 4000 meters, and cable resistance is 5.8K Ω (being as the criterion with the calculating of 0.4mm copper cash).Tested core is connected on X1 and the X2 terminal, leans on the cable of tested certain-length as biasing resistor, when core is connected on X1 and the X2 terminal, provide a forward voltage to triode, make triode 9013 conductings, and make hummer send song, lumination of light emitting diode, judge that thus cable core is normal; If any not luminous or not have song be that core is disconnected.
Sometimes need core is carried out voltage-withstand test, after core carries out voltage-withstand test, generally all carry out earlier core is discharged, carrying out cable core after having discharged again detects, consider the existence that also has residual voltage on the core, in order not damage detecting device, in cable detector, increase by 1 discharge tube R1, discharge tube R1 one terminates to the positive pole of power supply, the other end is received the base stage of transistor, form discharge loop with two terminals and tested cable, be used for the discharging of tested cable, make when carrying out core when detecting if residual voltage is arranged, residual voltage is through discharge tube and detect core and form the closed-loop path and carry out secondary discharge, do not damage transistor 9013, guarantee the cable detector reliably working.
Claims (4)
1. cable detector, it is characterized in that: this cable detector comprises testing circuit, indicating circuit and power supply, testing circuit comprises for two terminals that are connected with cable under test and sets node, terminals link to each other with the setting node, another terminals link to each other with the positive pole of power supply, indicating circuit comprises indicator and electronic switch, and indicator and electronic switch are connected on the two-stage of power supply, and the control end of electronic switch links to each other with the setting node.
2. cable detector according to claim 1, it is characterized in that: described electronic switch is transistor, the emitter of transistor links to each other with the negative pole of power supply, collector links to each other with indicator, base stage with set node and link to each other.
3. cable detector according to claim 2, it is characterized in that: described cable detector also comprises discharge resistance, this discharge resistance one terminates to the positive pole of power supply, the other end is received the base stage of transistor, form discharge loop with two terminals and tested cable, be used for discharging to tested cable.
4. according to claim 1,2 or 3 described cable detectors, it is characterized in that: described indicator comprises light emitting diode and/or hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205025 CN203178399U (en) | 2013-04-22 | 2013-04-22 | Cable detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205025 CN203178399U (en) | 2013-04-22 | 2013-04-22 | Cable detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178399U true CN203178399U (en) | 2013-09-04 |
Family
ID=49075077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320205025 Expired - Fee Related CN203178399U (en) | 2013-04-22 | 2013-04-22 | Cable detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178399U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486965A (en) * | 2014-09-18 | 2016-04-13 | 国家电网公司 | Cable detector |
| CN109524160A (en) * | 2018-10-11 | 2019-03-26 | 赵云红 | Wear-resisting, the durable type cable of one kind and its detection circuit |
| CN116338523A (en) * | 2023-03-31 | 2023-06-27 | 中国二十二冶集团有限公司 | Quick Calibration Method of Transformer Secondary Side Remote Line |
-
2013
- 2013-04-22 CN CN 201320205025 patent/CN203178399U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486965A (en) * | 2014-09-18 | 2016-04-13 | 国家电网公司 | Cable detector |
| CN109524160A (en) * | 2018-10-11 | 2019-03-26 | 赵云红 | Wear-resisting, the durable type cable of one kind and its detection circuit |
| CN116338523A (en) * | 2023-03-31 | 2023-06-27 | 中国二十二冶集团有限公司 | Quick Calibration Method of Transformer Secondary Side Remote Line |
| CN116338523B (en) * | 2023-03-31 | 2025-06-10 | 中国二十二冶集团有限公司 | A fast calibration method for remote lines on the secondary side of a transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Henan Communications Engineering Co., Ltd. Assignor: Henan Communication Cable Co., Ltd. Contract record no.: 2014410000071 Denomination of utility model: Cable detector Granted publication date: 20130904 License type: Exclusive License Record date: 20140730 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |