CN206460099U - Light current cable screen layer resistance meter - Google Patents
Light current cable screen layer resistance meter Download PDFInfo
- Publication number
- CN206460099U CN206460099U CN201620795435.4U CN201620795435U CN206460099U CN 206460099 U CN206460099 U CN 206460099U CN 201620795435 U CN201620795435 U CN 201620795435U CN 206460099 U CN206460099 U CN 206460099U
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- China
- Prior art keywords
- screen layer
- main frame
- test
- shielding
- light current
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- 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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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A kind of light current cable screen layer resistance meter, including test main frame and distal actuator, respectively there is a shielding RJ45 interface in the test main frame and distal actuator, the hard contact of shielding RJ45 interfaces can be connected with the screen layer of shielded cable, and main frame constitutes test access with distal actuator.The tester is based on resistance test circuit and single-chip microcomputer control display module design, the screen layer D.C. resistance for testing the shielding communications cable, to screen the instrument of cable shielding layer electric property.
Description
Technical field
The utility model belongs to the shielding testing field of shielding wire rod.
Background technology
So-called comprehensive wiring system refers to by standard, unified and simple structured way establishment and arranges various build
Build the communication line of various systems in thing (or groups of building), including network system, telephone system, monitoring system, power-supply system and
Illuminator etc..Therefore, comprehensive wiring system is a kind of information transmission system of standard universal.Comprehensive wiring system is intelligent
Office builds digital information system infrastructure, is that the systems such as all voices, data are carried out to unified planning and designing
Structured Cabling System, information-based, intelligentized material medium is provided for office, supports voice in future, data, picture and text, many matchmakers
The integrated applications such as body.
Current comprehensive wiring system in the market, there is numerous domestic and external brands, copper cable have surpass 5 classes, 6 classes and 7 classes it
Divide, also point of shielding and unmasked.6 classes, 7 classes for copper cable, everybody can know, numeral is bigger, and the performance of cable is got over
It is good, and be in the industry cycle long-standing for shielded cable and unmasked battle.In face of user for network security increasingly
Pay attention to, shielding harness develops into today, received and used by increasing user, and increasingly shows its vigor.That
, can select which type of user shielded cabling systemsGenerally, three class users select, a class is that have serious electricity
The factory building of the user of magnetic disturbance environment, such as industrial environment and Office Area, radio station, medical industry, airport and subway etc..It is another kind of
Security consideration is in order at, the unit of secrecy, such as national government office, financial industry, army etc. is strict with.
Shielding test of the prior art to shielding wire rod is only shown in the break-make of screen layer, it is impossible to more preferably performance shielding
It is routed in the shield effectiveness after termination.The quality of shield effectiveness directly influences the characteristic body of the electromagnetism interference of the shielding netting wire
It is existing, so the shield effectiveness of shielding wire rod needs an accurate test number to judge the quality of quality, and prior art
Temporarily this problem is solved without more preferable product.
Utility model content
The utility model is an electronic tester based on resistance test circuit and single-chip microcomputer control display module, is used for
The screen layer D.C. resistance of the test shielding communications cable, to screen the instrument of cable shielding layer electric property.
A kind of light current cable screen layer resistance meter, including test main frame and distal actuator, the test main frame and distal end
Respectively there is a shielding RJ45 interface on device, the hard contact of shielding RJ45 interfaces can be connected with the screen layer of shielded cable,
Main frame constitutes test access with distal actuator；
Further：The test main frame is opened the power supply and opened with being provided with battery case and power switch on distal actuator
Pass has green or red LED lamp to show power supply status；
Further：The test main frame is provided with testing button, presses testing button, the green at the test main frame end
LED test modes indicator lamp flashes, and completes after time test, indicator lamp Chang Liang, and described in resistance value test result is shown in
On the LCD liquid crystal displays of test main frame, for on-the-spot record cable shield DC resistance；
Further：The RJ45 interfaces can coordinate RJ45 turn 75 ohm of BNC coaxial cable interfaces, to regarding
Frequency monitors the test of coaxial cable shielding layer DC resistance；
Further：The test main frame carries test circuit and one-chip computer module, the screen for calculating and judging test
Whether the resistance value for covering layer meets parameter preset, and the whole structure of the shielding link is judged with this.
Advantage of the present utility model and the beneficial effect produced are：
The utility model is mainly used in the test of wire rod screen layer, can help the shielding wire rod of wire rod producer detection production
Quality it is whether qualified；In the engineering project that shielding wire rod is laid, workmen, can be direct to the termination quality of shielding wire rod
Have influence on the electromagnetism interference effect of shielding link, therefore the shielding link that the utility model clearly can be laid to completion exactly
Tested, to judge whether the performance of electromagnetism interference of its link is qualified.Its advantage is：
1. screen layer resistance readings can be tested out accurately, performance difference is embodied according to relevant readings；
2. being calculated using singlechip technology, data are accurate；
3. having filled up the blank of existing product, associated shield data can also be measured without a tester on the market at present；
4. small volume, is easy to carry.
Brief description of the drawings
Fig. 1 is the utility model light current cable screen layer resistance meter structural representation.
Embodiment
Description of reference numerals：Test main frame 1, distal actuator 2, screen layer 3, LED 4, testing button 5, calibration knob 6, LCD
Liquid crystal display 7, cable 8, inner insulating layer 9, cable sheath 10, cable shielding ground wire 11.
As shown in figure 1, a kind of light current cable screen layer resistance meter, including test main frame 1 and distal actuator 2, it is described to survey
Respectively there is a shielding RJ45 interface on examination main frame 1 and distal actuator 2, the hard contact of shielding RJ45 interfaces can be with shielded cable
Screen layer 3 connect, main frame and distal actuator constitute test access；
Further：The test main frame 1 opens the power supply with being provided with battery case and power switch on distal actuator 2
Switch has green or red LED lamp 4 to show power supply status；
Further：The test main frame 1 is provided with testing button 5, presses testing button, the green at the test main frame end
LED test modes indicator lamp 4 flashes, and completes after time test, indicator lamp Chang Liang, and described in resistance value test result is shown in
On the LCD liquid crystal displays 7 of test main frame, for on-the-spot record cable shield DC resistance；
Further：The RJ45 interfaces can coordinate RJ45 turn 75 ohm of BNC coaxial cable interfaces, to regarding
Frequency monitors the test of coaxial cable shielding layer DC resistance；
Further：The test main frame carries test circuit and one-chip computer module, the screen for calculating and judging test
Whether the resistance value for covering layer meets parameter preset, and the whole structure of the shielding link is judged with this.
Designed test circuit and the one-chip computer module of independent development, are capable of the resistance of the screen layer of precise quantification test
Whether value meets parameter preset, and the whole structure of the shielding link is judged with this.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong to the utility model technology.
Claims (6)
1. a kind of light current cable screen layer resistance meter, including test main frame and distal actuator, the test main frame and distal actuator
On respectively have one shielding RJ45 interfaces, shielding RJ45 interfaces hard contact can connect with the screen layer of shielded cable, main frame and
Distal actuator constitutes test access.
2. light current cable screen layer resistance meter as claimed in claim 1, it is characterised in that：The test main frame and distal end
Battery case and power switch are provided with device, opening the power switch has green or red LED lamp to show power supply status.
3. light current cable screen layer resistance meter as claimed in claim 1, it is characterised in that：The test main frame is provided with survey
Try button.
4. light current cable screen layer resistance meter as claimed in claim 1, it is characterised in that：The test main frame is provided with school
Quasi- button.
5. light current cable screen layer resistance meter as claimed in claim 1, it is characterised in that：The RJ45 interfaces can match somebody with somebody
Close RJ45 and turn 75 ohm of BNC coaxial cable interfaces, the test to video monitoring coaxial cable shielding layer DC resistance.
6. light current cable screen layer resistance meter as claimed in claim 1, it is characterised in that：The test main frame is with survey
Circuit and one-chip computer module are tried, for calculating and judging whether the resistance value of screen layer of test meets parameter preset, is come with this
Judge the whole structure of the shielding link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620795435.4U CN206460099U (en) | 2016-07-27 | 2016-07-27 | Light current cable screen layer resistance meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620795435.4U CN206460099U (en) | 2016-07-27 | 2016-07-27 | Light current cable screen layer resistance meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206460099U true CN206460099U (en) | 2017-09-01 |
Family
ID=59692131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620795435.4U Expired - Fee Related CN206460099U (en) | 2016-07-27 | 2016-07-27 | Light current cable screen layer resistance meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206460099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521278A (en) * | 2018-07-18 | 2019-03-26 | 宁波艾思科汽车音响通讯有限公司 | A kind of test fixture and method of coaxial cable internal and external conductor resistance |
| CN113764924A (en) * | 2021-07-28 | 2021-12-07 | 苏州浪潮智能科技有限公司 | Network cable type discrimination network port |
-
2016
- 2016-07-27 CN CN201620795435.4U patent/CN206460099U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521278A (en) * | 2018-07-18 | 2019-03-26 | 宁波艾思科汽车音响通讯有限公司 | A kind of test fixture and method of coaxial cable internal and external conductor resistance |
| CN109521278B (en) * | 2018-07-18 | 2021-04-16 | 宁波艾思科汽车音响通讯有限公司 | Test tool and method for resistance of inner conductor and outer conductor of coaxial cable |
| CN113764924A (en) * | 2021-07-28 | 2021-12-07 | 苏州浪潮智能科技有限公司 | Network cable type discrimination network port |
| CN113764924B (en) * | 2021-07-28 | 2023-07-21 | 苏州浪潮智能科技有限公司 | Network cable type screening network port |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 Termination date: 20190727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |