CN101493492A - Cable test device - Google Patents
Cable test device Download PDFInfo
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- CN101493492A CN101493492A CNA2009101054794A CN200910105479A CN101493492A CN 101493492 A CN101493492 A CN 101493492A CN A2009101054794 A CNA2009101054794 A CN A2009101054794A CN 200910105479 A CN200910105479 A CN 200910105479A CN 101493492 A CN101493492 A CN 101493492A
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Abstract
The invention relates to a cable testing device, which is used for testing a cable with a plurality of cores and comprises a first testing connector and a second testing connector which are respectively connected at two ends of the cable so as to connect a plurality of cores of the cable in series into a testing circuit, thus being connected with a positive interface and a negative interface of a multimeter, thereby forming a testing loop. The technical proposal adopts passive design, i.e. an external power supply is not required, the multimeter is directly used for detection, the testing efficiency is high and the testing time is second-magnitude; the cable testing device can prevent judging a failure cable as a good cable under multi-failure condition (i.e. wire breakage and continuous pin occur simultaneously); therefore, the testing items are complete and any problems during the processing of the cable can be found.
Description
Technical field
The present invention relates to proving installation, more particularly, relate to a kind of cable test device.
Background technology
Wireline test needs special circuit at present, implement more complicated, and testing efficiency is lower.
Summary of the invention
The technical problem to be solved in the present invention is, needs special circuit at the above-mentioned wireline test of prior art, implements more complicated, and defective such as testing efficiency is lower, and a kind of cable test device is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of cable test device, be used to test cable with many heart yearns, it comprises first test splice and second test splice that is connected to described cable two ends, to be used for that many heart yearns of described cable are connected into measurement circuit, thereby be used for being connected, to form test loop with the positive and negative interface of testing tool.
In cable test device of the present invention, described testing tool is multimeter or resistance meter.
In cable test device of the present invention, between two adjacent heart yearns, be serially connected with at least one resistance.
In cable test device of the present invention, in described measurement circuit, be respectively the parallel branch that the corresponding setting of every heart yearn has certain resistance, and the resistance of each parallel branch has nothing in common with each other.
In cable test device of the present invention, described cable has 9 heart yearns, and described first test splice and second test splice have 9 interfaces respectively, and each interface has external port and inner port respectively; Wherein, an inner port correspondence of first test splice the inner port and second test splice is connected the two ends of a heart yearn; The external port of the external port of first interface of described first test splice and the 9th interface of second test splice is respectively applied for the positive and negative interface of multimeter and is connected; The external port of second interface of described first test splice and the external port of the 3rd interface, the external port of the external port of the 4th interface and the 5th interface, the external port of the external port of the 6th interface and the 7th interface, and the external port of the external port of the 8th interface and the 9th interface is connected respectively, and with the external port of first interface of described second test splice and the external port of second interface, the external port of the external port of the 3rd interface and the 4th interface, the external port of the external port of the 5th interface and the 6th interface, and the external port of the external port of the 7th interface and the 8th interface is connected respectively, thereby form eight series arms, and at least one series arm series resistor.
In cable test device of the present invention,, the resistance of each series arm is all identical.
In cable test device of the present invention, the difference of the resistance between parallel branch and the series arm is at least 8800 ohm.
Implement cable test device of the present invention, has following beneficial effect: be connected with each root heart yearn of cable by the inner port of using first test splice and second test splice, again with the adjacent external port of first test splice and second test splice, series connection in twos, thereby the heart yearn of cable is together in series, form measurement circuit, again this measurement circuit is connected with multimeter at last, form test loop, thereby whether the heart yearn that can detect in this cable exists broken string, the technical program adopts passive design, promptly do not need external power source, directly utilize multimeter to detect, the testing efficiency height, the test duration is a second level; Further, when forming measurement circuit, promptly in cascade process, add resistance with a preset value size, thereby feasible resistance with this measurement circuit is defined as a preset value, therefore when cable is tested, compare with this preset value by the resistance value of read test, thereby can judge whether exist heart yearn to connect tin in this cable; Again further, in measurement circuit, be provided with the parallel branch of certain resistance for every heart yearn, and the resistance difference of each branch road, therefore when carrying out cable detection,, can judge further that there is the broken string situation in which root heart yearn by the resistance of read test resistance; Again further, by being provided with the resistance in parallel branch and the series arm to such an extent that differ bigger, thereby can prevent in the multiple faults situation, promptly break and when connecting tin and taking place simultaneously, the cable that failure cable is judged as, to sum up, the test event of cable test device of the present invention is very complete, can find any problem of cable processing.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of cable test device first embodiment of the present invention;
Fig. 2 is the structural representation of cable test device second embodiment of the present invention.
Embodiment
Technical scheme of the present invention is to be used to test the cable with many heart yearns, as shown in Figure 1, in first embodiment of cable test device of the present invention, it comprises first test splice 21 and second test splice 22 that is connected to cable 1 two ends, this first test splice 21 and second test splice 22 are with after the two ends of cable 1 are connected, to be together in series each root heart yearn of cable 1, constitute a measurement circuit, then the measurement circuit that will connect is with after the positive and negative interface of testing tool is connected, promptly form test loop, wherein, multimeter will be set to the resistance measurement pattern, therefore, if there is certain reading in multimeter, just can judge that this measurement circuit is communicated with this moment, and promptly all there is not the broken string situation in each root heart yearn of cable 1.When specific design, this testing tool can be multimeter or resistance meter, but and the instrument of other test resistance, in technical scheme of the present invention, preferably use multimeter.
In actual use, the defective of cable 1 is generally broken string and connects two kinds of situations of tin, therefore whether there is the tin situation that connects for the heart yearn in the energy detection streamer, when heart yearn is connected into measurement circuit, by adding the resistance of a preset value size, promptly between two adjacent heart yearns, be serially connected with at least one this resistance, thereby the heart yearn of cable 1 can be connected into measurement circuit with a definite resistance, after again this measurement circuit and multimeter being connected and composed test loop, by reading the measured value of multimeter to the resistance of this measurement circuit, and with it and should determine that resistance compared, if this measured value is when this determines in the error range of resistance, the heart yearn in this cable does not promptly exist broken string not exist yet and connects tin; If this measured value determines that with this resistance differ bigger, then there is not broken string in the heart yearn of this cable, connects the tin situation between heart yearn but exist.
Two above-mentioned technical schemes can only judge that all there is broken string in cable, but broken string appears in which root heart yearn that can not point out with precision, therefore, when there is broken string in the heart yearn in the cable 1, in order to judge that there is the broken string situation in which root heart yearn, the further technical scheme of the present invention: in measurement circuit, be respectively the parallel branch that the corresponding setting of every heart yearn has certain resistance, and the resistance of each parallel branch has nothing in common with each other.When using multimeter that cable 1 is detected, when if there is not broken string in the heart yearn in the cable, electric current will flow through from heart yearn, and the every corresponding parallel branch of heart yearn flows through no current, therefore, the resistance size that multimeter is measured is the resistance of series arm, can show that at this moment cable 1 there is no broken string; And when certain root heart yearn broken string, electric current will flow through from the parallel branch of this heart yearn, adds the resistance of this parallel branch thereby the resistance value that multimeter is measured is the resistance of series arm, and therefore can judge is which root heart yearn exists the broken string situation.In order to prevent that under the multiple faults situation failure cable erroneous judgement is good cable, promptly break and the situation that connects tin takes place simultaneously, it is bigger that the resistance that need parallel branch and the resistance of series arm are set to difference.
Among first embodiment as shown in Figure 1, this cable 1 has 9 heart yearns, first test splice 21 and second test splice 22 have 9 interfaces respectively, i.e. first interface, second interface, the 3rd interface, the 4th interface, the 5th interface, the 6th interface, the 7th interface, the 8th interface and the 9th interface; Each interface has external port and inner port respectively; Wherein, inner port is used for being connected with heart yearn, in this embodiment, the inner port of first interface of the inner port of first interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 1, the inner port of second interface of the inner port of second interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 2, the inner port of the 3rd interface of the inner port of the 3rd interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 3, the inner port of the 4th interface of the inner port of the 4th interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 4, the inner port of the 5th interface of the inner port of the 5th interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 5, the inner port of the 6th interface of the inner port of the 6th interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 9, the inner port of the 7th interface of the inner port of the 7th interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 7, the inner port of the 8th interface of the inner port of the 8th interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 8, the inner port of the 9th interface of the inner port of the 9th interface of first test splice 21 and second test splice 22 is connected to the two ends of heart yearn 1, then with the external port of second interface of first test splice 21 and the external port of the 3rd interface, the external port of the external port of the 4th interface and the 5th interface, the external port of the external port of the 6th interface and the 7th interface, the external port of the external port of the 8th interface and the 9th interface is connected respectively, and the resistance that the interpolation resistance equates in the process of two adjacent external port of series connection, this in an embodiment, the resistance of this resistance is 1k ohm; In like manner, with the external port of first interface of second test splice 22 and the external port of second interface, external port and the external port of the 4th interface, the external port of the 5th interface and the external port of the 6th interface of the 3rd interface, the external port of the external port of the 7th interface and the 8th interface is connected respectively, and adds the resistance of 1k ohm in the process of two adjacent external port of series connection; At this moment, the heart yearn of cable 1 can be together in series, and the resistance of the measurement circuit of this series connection is 8k ohm, and the external port of first interface of first test splice 21 will link to each other with the positive interface of multimeter, the external port of the 9th interface of second test splice 22 will link to each other with the negative interface of multimeter, be the external port inflow of electric current from first interface of first test splice 21, and flow out from the external port of the 9th interface of second test splice 22, measured value by the observation multimeter just can judge whether cable is correct, if promptly the measured value of multimeter arrives between 8.1K ohm at 7.9K, cable is qualified cable, otherwise is failure cable.Understandable, above-mentioned connected mode is a special case, as long as can realize these nine heart yearns are together in series, also can adopt other connected mode.
Among second embodiment as shown in Figure 2, for every heart yearn is provided with a branch road in parallel, and each parallel branch all is in series with the resistance that resistance has nothing in common with each other, be that resistance R 1 to R9 is set to 10K ohm, 11K ohm, 12K ohm, 13K ohm, 14K ohm, 15K ohm, 16K ohm, 17K ohm and 18K ohm respectively, and 8 resistance R are set to 500 ohm, 600 ohm, 700 ohm, 800 ohm, 900 ohm, 1000 ohm, 1100 ohm and 1200 ohm respectively in the series arm.Therefore, under the single failure condition, if the result of test is bigger than the value of expectation, illustrate that cable has the situation of broken string, and can judge that root line is disconnected, for example according to the resistance of test, if test result than expectation value big 11K ohm, the 8th heart yearn of tested cable broken string is described.If the result of test is littler than expectation value, the situation that connects tin is described, and can be according to the test value fault location.In this embodiment, be provided with the difference of the resistance between parallel branch and the series arm bigger, promptly be at least 8800 ohm.
The present invention describes by several specific embodiments, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, at particular condition or concrete condition, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall in the claim scope of the present invention.
Claims (7)
1, a kind of cable test device, be used to test cable with many heart yearns, it is characterized in that, comprise first test splice and second test splice that are connected to described cable two ends, to be used for that many heart yearns of described cable are connected into measurement circuit, thereby be used for being connected, to form test loop with the positive and negative interface of testing tool.
2, cable test device according to claim 1 is characterized in that, described testing tool is multimeter or resistance meter.
3, cable test device according to claim 1 is characterized in that, is serially connected with at least one resistance between two adjacent heart yearns.
4, cable test device according to claim 1 is characterized in that, in described measurement circuit, be respectively the parallel branch that the corresponding setting of every heart yearn has certain resistance, and the resistance of each parallel branch has nothing in common with each other.
According to the arbitrary described cable test device of claim 1～4, it is characterized in that 5, described cable has 9 heart yearns, described first test splice and second test splice have 9 interfaces respectively, and each interface has external port and inner port respectively; Wherein, an inner port correspondence of first test splice the inner port and second test splice is connected the two ends of a heart yearn; The external port of the external port of first interface of described first test splice and the 9th interface of second test splice is respectively applied for the positive and negative interface of multimeter and is connected; The external port of second interface of described first test splice and the external port of the 3rd interface, the external port of the external port of the 4th interface and the 5th interface, the external port of the external port of the 6th interface and the 7th interface, and the external port of the external port of the 8th interface and the 9th interface is connected respectively, and with the external port of first interface of described second test splice and the external port of second interface, the external port of the external port of the 3rd interface and the 4th interface, the external port of the external port of the 5th interface and the 6th interface, and the external port of the external port of the 7th interface and the 8th interface is connected respectively, thereby form eight series arms, and at least one series arm series resistor.
6, cable test device according to claim 5 is characterized in that, the resistance of each series arm is all identical.
7, cable test device according to claim 6 is characterized in that, the difference of the resistance between parallel branch and the series arm is at least 8800 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910105479A CN101493492B (en) | 2009-02-19 | 2009-02-19 | Cable test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910105479A CN101493492B (en) | 2009-02-19 | 2009-02-19 | Cable test device |
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| Publication Number | Publication Date |
|---|---|
| CN101493492A true CN101493492A (en) | 2009-07-29 |
| CN101493492B CN101493492B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910105479A Expired - Fee Related CN101493492B (en) | 2009-02-19 | 2009-02-19 | Cable test device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103760476A (en) * | 2013-12-24 | 2014-04-30 | 兰州空间技术物理研究所 | Device, system and method for testing internal discharge of cables for satellite |
| CN104820158A (en) * | 2015-04-30 | 2015-08-05 | 国家电网公司 | Direct-current broken-line fault determination method of flexible direct-current power transmission system |
| CN106597207A (en) * | 2016-12-08 | 2017-04-26 | 山东航天电子技术研究所 | Integrated electronic equipment cable plugging state passive detection system and detection method |
| CN107894557A (en) * | 2017-12-05 | 2018-04-10 | 中国船舶重工集团公司第七0五研究所 | A kind of equipment cable insulating properties quick determination method |
| CN108061837A (en) * | 2017-12-31 | 2018-05-22 | 上海南洋-藤仓电缆有限公司 | A kind of elevator cable is horizontal to accelerate bending life test equipment and test method |
| CN109358269A (en) * | 2018-12-11 | 2019-02-19 | 上海裕达实业有限公司 | Cable on-off and device for testing resistance and method |
| CN109406924A (en) * | 2017-08-17 | 2019-03-01 | 上海卓亚医疗科技有限公司 | A kind of medical accelerator cable fault maintenance unit and method |
| CN109741875A (en) * | 2019-01-10 | 2019-05-10 | 临沂矿业集团有限责任公司 | A kind of cross-linked polyethylene insulated cable terminal structure and its test method |
| CN112485724A (en) * | 2019-08-21 | 2021-03-12 | 泰科电子(上海)有限公司 | Flexible flat cable test system |
| CN113411994A (en) * | 2021-05-11 | 2021-09-17 | 深圳市八达晟电子有限公司 | Quick test display device of multicore connecting wire |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2409525Y (en) * | 2000-01-04 | 2000-12-06 | 本溪钢铁公司机电安装工程公司 | Cable tester |
| CN2586166Y (en) * | 2002-11-28 | 2003-11-12 | 杨一勤 | Intelligence fast line inspection instrument |
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2009
- 2009-02-19 CN CN200910105479A patent/CN101493492B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760476B (en) * | 2013-12-24 | 2017-02-01 | 兰州空间技术物理研究所 | Device, system and method for testing internal discharge of cables for satellite |
| CN103760476A (en) * | 2013-12-24 | 2014-04-30 | 兰州空间技术物理研究所 | Device, system and method for testing internal discharge of cables for satellite |
| CN104820158A (en) * | 2015-04-30 | 2015-08-05 | 国家电网公司 | Direct-current broken-line fault determination method of flexible direct-current power transmission system |
| CN104820158B (en) * | 2015-04-30 | 2017-11-21 | 国家电网公司 | A kind of flexible direct current power transmission system direct current disconnection fault determination methods |
| CN106597207B (en) * | 2016-12-08 | 2019-02-19 | 山东航天电子技术研究所 | A kind of integronics cable connector state passive detection system and detection method |
| CN106597207A (en) * | 2016-12-08 | 2017-04-26 | 山东航天电子技术研究所 | Integrated electronic equipment cable plugging state passive detection system and detection method |
| CN109406924A (en) * | 2017-08-17 | 2019-03-01 | 上海卓亚医疗科技有限公司 | A kind of medical accelerator cable fault maintenance unit and method |
| CN107894557A (en) * | 2017-12-05 | 2018-04-10 | 中国船舶重工集团公司第七0五研究所 | A kind of equipment cable insulating properties quick determination method |
| CN108061837A (en) * | 2017-12-31 | 2018-05-22 | 上海南洋-藤仓电缆有限公司 | A kind of elevator cable is horizontal to accelerate bending life test equipment and test method |
| CN109358269A (en) * | 2018-12-11 | 2019-02-19 | 上海裕达实业有限公司 | Cable on-off and device for testing resistance and method |
| CN109741875A (en) * | 2019-01-10 | 2019-05-10 | 临沂矿业集团有限责任公司 | A kind of cross-linked polyethylene insulated cable terminal structure and its test method |
| CN112485724A (en) * | 2019-08-21 | 2021-03-12 | 泰科电子(上海)有限公司 | Flexible flat cable test system |
| CN113411994A (en) * | 2021-05-11 | 2021-09-17 | 深圳市八达晟电子有限公司 | Quick test display device of multicore connecting wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101493492B (en) | 2012-09-19 |
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Owner name: POWER SUPPLY PRODUCTS (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: AIMOSHENG NETWORK ENERGY SOURCE CO LTD Effective date: 20140903 |
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Effective date of registration: 20140903 Address after: 518101 Guangdong city of Shenzhen province Baoan District Xin'an road two North 68 Street office Honglang District Industrial Park plant Patentee after: Astec power supply (Shenzhen) Co., Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: Aimosheng Network Energy Source Co., Ltd. |
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