CN108132386A - A kind of 10km long ranges low-resistance TCH test channel expansion system and method - Google Patents

A kind of 10km long ranges low-resistance TCH test channel expansion system and method Download PDF

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Publication number
CN108132386A
CN108132386A CN201611089075.7A CN201611089075A CN108132386A CN 108132386 A CN108132386 A CN 108132386A CN 201611089075 A CN201611089075 A CN 201611089075A CN 108132386 A CN108132386 A CN 108132386A
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CN
China
Prior art keywords
voltage sample
channel array
channel
constant
current source
Prior art date
Application number
CN201611089075.7A
Other languages
Chinese (zh)
Inventor
孙德冲
蔡惠华
张莉莉
贾丰锴
葛萌
孟翔宇
Original Assignee
北京航天计量测试技术研究所
中国运载火箭技术研究院
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Application filed by 北京航天计量测试技术研究所, 中国运载火箭技术研究院 filed Critical 北京航天计量测试技术研究所
Priority to CN201611089075.7A priority Critical patent/CN108132386A/en
Publication of CN108132386A publication Critical patent/CN108132386A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/14Measuring resistance by measuring current or voltage obtained from a reference source

Abstract

A kind of 10km long ranges low-resistance TCH test channel expansion system, including test terminal A1, test terminal B2, wherein test terminal A1 includes the first master cpu 3, constant-current source A4, channel array A5, voltage sample modules A 6, and constant-current source A4, channel array A5, voltage sample modules A 6 are all connected with the first master cpu 3;And test terminal B2 and include the second master cpu 7, constant-current source B8, channel array B9, voltage sample module B10, constant-current source B8, channel array B9, voltage sample module B10 are all connected with the second master cpu 7;It is connected between first master cpu 3 and the second master cpu 7 by can buses.

Description

A kind of 10km long ranges low-resistance TCH test channel expansion system and method

Technical field

The technology belongs to channel extension field, and in particular to a kind of 10km long ranges low-resistance TCH test channel expansion system.

Background technology

The long cable (> 100m) that pylon or underground are fixed on for transmitting target range is tested, using traditional approach by cable two Terminate extremely difficult into tester forming circuit test, existing tester measuring distance is usually no more than 100m at present.It is and large-scale The on-line testing of weapon system such as aircraft, carrier rocket cable, because its cable network system is huge, core point up to hundreds of thousands point, And the TCH test channel that common cable system tester is included cannot meet testing requirement, this is just needed to cable system tester not It can only realize extensive channel extension, and be required to realize and test over long distances, meeting cable system detection will be completely covered The quality objective requirement of all core points.And existing cable net tester, such as the PMD-CTI of Beijing Aerospace Measurement & Control Technology Developmennt Company Serial cable tester, TCH test channel points are 128 points;The high property of DIT-MCO 2650.MTA types of Nuo Dian Science and Technology Ltd.s Can cable tester be configured with 1500 test points, and MK companies cable/harness/rear-panel testing system number of test points:32. -26 Wan Dian, but long range switching tooling is needed for long range test, testing cost is huge, it is impossible to which the multicore point for meeting long range is big The testing requirement of type cable system.

Invention content

It is an object of the invention to:A kind of 10km long ranges low-resistance TCH test channel expansion system meets the multicore of long range The testing requirement of point large-sized cable net

Technical scheme is as follows:A kind of 10km long ranges low-resistance TCH test channel expansion system, including testing terminal A, terminal B is tested, wherein test terminal A includes the first master cpu, constant-current source A, channel array A, voltage sample modules A, constant current Source A, channel array A, voltage sample modules A are all connected with the first master cpu;And it tests terminal B and includes the second master cpu, constant current Source B, channel array B, voltage sample module B, constant-current source B, channel array B, voltage sample module B are all connected with the second master cpu; It is connected between first master cpu and the second master cpu by can buses;Tested electricity is connect with channel array B in channel array A Cable.

The channel array A and channel array B switchable currents output terminal, current input terminal, voltage sample anode, voltage Negative terminal is sampled to the not same core point of tested cable.

A kind of 10km long ranges low-resistance TCH test channel method, includes the following steps,

S1:Tested cable is connected between channel array A and channel array B, and channel array A and channel array can be passed through The not same core point of the tested cable of B switchings;

S2:Voltage sample anode V+, voltage sample negative terminal are obtained by voltage sample modules A 6 and voltage sample module B10 V-

S3:By current output terminal I+, current input terminal I- according to constant-current source A and constant-current source B, according in S2 Voltage sample anode V+, voltage sample negative terminal V-, can must be tested cable resistance value.

Cable resistance value can must be tested using " the four lines measuring method ".

The remarkable result of the present invention is:Testing cost is low, can meet the test of the multicore point large-sized cable net of long range Demand..

Description of the drawings

Fig. 1 is a kind of 10km long ranges low-resistance TCH test channel expansion system schematic diagram of the present invention

In figure:1 test terminal A, 2 test terminal B, 3 first master cpus, 4 constant-current source A, 5 channel array A, 6 voltage samples Modules A, 7 second master cpus, 8 constant-current source B, 9 channel array B, 10 voltage sample module B,

Specific embodiment

Below in conjunction with the accompanying drawings and specific embodiment is described in further detail the present invention.

A kind of 10km long ranges low-resistance TCH test channel expansion system, including test terminal A1, test terminal B2, wherein testing Terminal A1 includes the first master cpu 3, constant-current source A4, channel array A5, voltage sample modules A 6, constant-current source A4, channel array A5, voltage sample modules A 6 are all connected with the first master cpu 3;And it tests terminal B2 and includes the second master cpu 7, constant-current source B8, leads to Channel array B9, voltage sample module B10, constant-current source B8, channel array B9, voltage sample module B10 are all connected with the second master control CPU7;It is connected between first master cpu 3 and the second master cpu 7 by can buses;Connect in channel array A5 and channel array B9 Tested cable is connect, and channel array A5 and channel array B9 switchable currents output terminal, current input terminal and voltage sample are just End, the not same core point of voltage sample negative terminal to tested cable;Pass through current output terminal, current input terminal, voltage sample anode, electricity Pressure sampling negative terminal, cable resistance value can must be tested using " the four lines measuring method ";

A kind of 10km long ranges low-resistance TCH test channel method, includes the following steps:

S1:Tested cable is connected between channel array A5 and channel array B9, and channel array A5 and channel can be passed through The not same core point of the tested cable of array B9 switchings;

S2:Voltage sample anode V+, voltage sample negative terminal are obtained by voltage sample modules A 6 and voltage sample module B10 V-

S3:By current output terminal I+, current input terminal I- according to constant-current source A4 and constant-current source B8, according in S2 Voltage sample anode V+, voltage sample negative terminal V-, cable resistance value can must be tested using " the four lines measuring method ".

Claims (4)

1. a kind of 10km long ranges low-resistance TCH test channel expansion system, it is characterised in that:Including test terminal A (1), test terminal B (2), wherein test terminal A (1) includes the first master cpu 3, constant-current source A (4), channel array A (5), voltage sample modules A (6), constant-current source A (4), channel array A (5), voltage sample modules A (6) are all connected with the first master cpu (3);And test terminal B (2) including the second master cpu (7), constant-current source B (8), channel array B (9), voltage sample module B (10), constant-current source B (8), lead to Channel array B (9), voltage sample module B (10) are all connected with the second master cpu (7);First master cpu (3) and the second master cpu (7) it is connected between by can buses;Tested cable is connect with channel array B (9) in channel array A (5).
2. a kind of 10km long ranges low-resistance TCH test channel expansion system according to claim 1, it is characterised in that:It is described logical Channel array A (5) and channel array B (9) switchable current output terminal, current input terminal, voltage sample anode, voltage sample negative terminal To the not same core point of tested cable.
A kind of 3. 10km long ranges low-resistance TCH test channel method, it is characterised in that:Include the following steps,
S1:Tested cable is connected between channel array A (5) and channel array B (9), and can be by channel array A (5) with leading to The not same core point of the tested cable of channel array B (9) switchings;
S2:Voltage sample anode V+, voltage sample negative terminal are obtained by voltage sample modules A (6) and voltage sample module B (10) V-;
S3:It is understood according to constant-current source A (4) and constant-current source B (8) by current output terminal I+, current input terminal I-, according in S2 Voltage sample anode V+, voltage sample negative terminal V-, can must be tested cable resistance value.
4. a kind of 10km long ranges low-resistance TCH test channel method according to claim 1, it is characterised in that:Using " four lines Mensuration " can must be tested cable resistance value.
CN201611089075.7A 2016-11-30 2016-11-30 A kind of 10km long ranges low-resistance TCH test channel expansion system and method CN108132386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611089075.7A CN108132386A (en) 2016-11-30 2016-11-30 A kind of 10km long ranges low-resistance TCH test channel expansion system and method

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CN201611089075.7A CN108132386A (en) 2016-11-30 2016-11-30 A kind of 10km long ranges low-resistance TCH test channel expansion system and method

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CN108132386A true CN108132386A (en) 2018-06-08

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU892318A1 (en) * 1980-04-29 1981-12-23 Всесоюзный научно-исследовательский проектно-конструкторский и технологический институт кабельной промышленности Device for automatic measuring of cable wire resistance
CN203054094U (en) * 2013-01-09 2013-07-10 李涛 Cable tester
CN103560810A (en) * 2013-11-15 2014-02-05 哈尔滨工业大学 Cable testing controller based on CAN bus communication
CN103675586A (en) * 2013-09-26 2014-03-26 北京电子工程总体研究所 Testing method and system for long-distance multi-core cable
CN103698663A (en) * 2012-09-28 2014-04-02 北京航天计量测试技术研究所 Cable network tester based on tree-type channel expansion
CN204228872U (en) * 2013-10-22 2015-03-25 重庆成瑞光电科技有限公司 A kind of testing lines device being suitable for long distance network wiring
CN104569719A (en) * 2014-12-31 2015-04-29 贝兹维仪器(苏州)有限公司 Multicore cable testing system
CN104569730A (en) * 2015-01-30 2015-04-29 航天东方红卫星有限公司 Cable testing system applied to minisatellite
CN105116293A (en) * 2015-09-14 2015-12-02 中国空间技术研究院 Conduction and insulation automatic test method of aerospace low frequency cable network
CN105158575A (en) * 2015-08-19 2015-12-16 湘潭大学 Automatic low resistance test device
CN105988066A (en) * 2015-02-09 2016-10-05 华北电力大学(保定) Double-end partial discharging positioning method of long-distance cable based on correction pulses
CN206331045U (en) * 2016-11-30 2017-07-14 北京航天计量测试技术研究所 A kind of 10km long ranges low-resistance TCH test channel extends system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU892318A1 (en) * 1980-04-29 1981-12-23 Всесоюзный научно-исследовательский проектно-конструкторский и технологический институт кабельной промышленности Device for automatic measuring of cable wire resistance
CN103698663A (en) * 2012-09-28 2014-04-02 北京航天计量测试技术研究所 Cable network tester based on tree-type channel expansion
CN203054094U (en) * 2013-01-09 2013-07-10 李涛 Cable tester
CN103675586A (en) * 2013-09-26 2014-03-26 北京电子工程总体研究所 Testing method and system for long-distance multi-core cable
CN204228872U (en) * 2013-10-22 2015-03-25 重庆成瑞光电科技有限公司 A kind of testing lines device being suitable for long distance network wiring
CN103560810A (en) * 2013-11-15 2014-02-05 哈尔滨工业大学 Cable testing controller based on CAN bus communication
CN104569719A (en) * 2014-12-31 2015-04-29 贝兹维仪器(苏州)有限公司 Multicore cable testing system
CN104569730A (en) * 2015-01-30 2015-04-29 航天东方红卫星有限公司 Cable testing system applied to minisatellite
CN105988066A (en) * 2015-02-09 2016-10-05 华北电力大学(保定) Double-end partial discharging positioning method of long-distance cable based on correction pulses
CN105158575A (en) * 2015-08-19 2015-12-16 湘潭大学 Automatic low resistance test device
CN105116293A (en) * 2015-09-14 2015-12-02 中国空间技术研究院 Conduction and insulation automatic test method of aerospace low frequency cable network
CN206331045U (en) * 2016-11-30 2017-07-14 北京航天计量测试技术研究所 A kind of 10km long ranges low-resistance TCH test channel extends system

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Application publication date: 20180608