CN113740637A - Cable test fixture - Google Patents
Cable test fixture Download PDFInfo
- Publication number
- CN113740637A CN113740637A CN202110857950.6A CN202110857950A CN113740637A CN 113740637 A CN113740637 A CN 113740637A CN 202110857950 A CN202110857950 A CN 202110857950A CN 113740637 A CN113740637 A CN 113740637A
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- 238000012360 testing method Methods 0.000 title claims abstract description 252
- 239000000523 sample Substances 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a cable test fixture, which comprises a signal test board, a plurality of signal test points arranged on the surface of the signal test board, a support bracket movably arranged above the signal test board in a spanning manner, test probes arranged on the support bracket and used for being abutted against the signal test points, and a network analyzer used for analyzing test results, wherein a test cable is connected between the test probes and a network test port of the network analyzer. Therefore, when the signal test is required to be carried out on the test cable, only one end of the test cable is required to be connected with the test probe, and then the other end of the test cable is connected with the network test port of the network analyzer, so that the test signal can be sent to the signal test board through the signal connection between the test probe and the corresponding signal test point, and the signal test on the test cable is completed. Compared with the prior art, the cable signal testing device can conveniently and quickly complete cable signal testing, improve testing efficiency, simplify testing operation process and reduce manual labor load.
Description
Technical Field
The invention relates to the technical field of servers, in particular to a cable test fixture.
Background
With the development of the electronic technology in China, more and more electronic devices have been widely used.
Servers are important components in electronic devices, and are devices that provide computing services. Since the server needs to respond to and process the service request, the server generally has the capability of assuming and securing the service. The server is divided into a file server, a database server, an application server, a WEB server and the like according to different service types provided by the server. The main components of the server include a processor, a hard disk, a memory, a system bus, etc., similar to a general computer architecture.
In the big data era, a large number of IT devices are centrally located in a data center. These data centers include various types of servers, storage, switches, and a large number of cabinets and other infrastructure. Each type of IT equipment is composed of various hardware boards, such as a computing module, a memory module, a chassis, a fan module, and the like. At present, carriers of high-speed signals in a server mainly comprise board cards and cables, and for the cables, line Loss (Cable Loss) is a crucial parameter. The line loss reflects the quality of a transmission signal of a signal carrier, and the line loss test requirement of a tester is higher and higher.
In the prior art, a conventional testing method is to calibrate a test cable used in an NA (Network Analyzer) with a calibrator, connect the test cable to a cable tester, calibrate a plurality of connection cables of the cable tester with the calibrator, screw the connection cables to a signal testing board, and connect the connection cables to connectors of the signal testing board respectively for testing. Because the types of the signal testing boards are many, the connectors configured on each type of signal testing board may be different, for example, the connector types include SMA, SMP, Slim SAS, MiniSAS, Oculink, Gen Z, MCIO, and the like, so that one signal testing board must be replaced after each signal cable is tested, and each cable and each connector need to be screwed and plugged again during each replacement operation, which results in a very complicated and tedious operation flow, low testing efficiency, and large manual labor load.
Therefore, how to conveniently and quickly complete the cable signal test, improve the test efficiency, simplify the test operation process and reduce the manual labor load is a technical problem faced by technicians in the field.
Disclosure of Invention
The invention aims to provide a cable test fixture which can conveniently and quickly complete cable signal test, improve test efficiency, simplify test operation process and reduce manual labor load.
In order to solve the technical problem, the invention provides a cable test fixture, which comprises a signal test board, a plurality of signal test points arranged on the surface of the signal test board, a support bracket movably arranged above the signal test board in a spanning manner, test probes arranged on the support bracket and used for being abutted against the signal test points, and a network analyzer used for analyzing test results, wherein a test cable is connected between the test probes and a network test port of the network analyzer.
Preferably, the signal test points are distributed on the surface of the signal test board in a plurality of rows according to a preset interval.
Preferably, the supporting bracket includes supporting longitudinal rods distributed on both sides of the signal testing board in the width direction, supporting cross beams connected between the supporting longitudinal rods, and slide rails disposed at the bottoms of the supporting longitudinal rods, and the testing probe is vertically connected to the bottom of the supporting cross beam.
Preferably, the length direction of the slide rail is parallel to the length direction of the signal test board.
Preferably, the test probes are movably connected to the bottom of the supporting beam, and the moving direction of the test probes is parallel to the width direction of the signal testing board.
Preferably, the supporting beam is provided with a long slide hole along the length direction thereof, and the test probe is slidably disposed in the long slide hole.
Preferably, the test probe comprises a needle cylinder arranged in the long slide hole and a needle head vertically and telescopically arranged at the bottom end of the needle cylinder.
Preferably, springs which are distributed along the vertical direction and are connected with the needle head are arranged in the needle cylinder.
The cable test fixture provided by the invention mainly comprises a signal test board, a signal test point, a support bracket, a test probe and a network analyzer. The signal test board is mainly used for testing the cable to perform signal test, a plurality of signal test points are arranged on the surface of the signal test board, and each signal test point is mainly used for forming signal connection with the test cable so as to complete the signal test according to test contents. The support bracket is arranged over the signal test board in a straddling mode and can move relative to the signal test board. The test probes are arranged on the support bracket and are mainly used for forming physical butt joint with each signal test point and simultaneously forming signal connection. The network analyzer is mainly used for analyzing a test result, and the test cable is connected between the test probe and a network test port of the network analyzer and connects the network analyzer, the test probe and the signal test board in series. Therefore, when the signal test is required to be carried out on the test cable, only one end of the test cable is required to be connected with the test probe, and then the other end of the test cable is connected with the network test port of the network analyzer, so that the test signal can be sent to the signal test board through the signal connection between the test probe and the corresponding signal test point, and the signal test on the test cable is completed. In the period, the signal connection between the test cable and the signal test board is realized through the point contact of the test probe and the signal test point, and in addition, the support bracket can move relative to the signal test board, so the signal connection between the test probe and the signal test point can be conveniently realized, and the signal connection between the test cable and different signal test points can be adjusted. Compared with the prior art, an operator does not need to screw and plug a connector plug or consider the problem of connector model matching, the cable signal test can be conveniently and quickly completed, the test efficiency is improved, the test operation process is simplified, and the manual labor load is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Wherein, in fig. 1:
testing the cable-a;
the system comprises a signal test board-1, a signal test point-2, a support bracket-3, a test probe-4 and a network analyzer-5;
a supporting longitudinal rod-31, a supporting beam-32, a sliding rail-33, a syringe-41 and a needle head-42;
long slide hole-321.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
In one embodiment of the present invention, the cable testing fixture mainly includes a signal testing board 1, a signal testing point 2, a supporting bracket 3, a testing probe 4 and a network analyzer 5.
The signal test board 1 is mainly used for testing a cable a to perform signal testing, a plurality of signal test points 2 are arranged on the surface of the signal test board 1, and each signal test point 2 is mainly used for forming signal connection with the cable a to complete signal testing according to testing contents.
The support frame 3 straddles over the signal testing board 1 and is movable relative to the signal testing board 1. The test probes 4 are arranged on the support carrier 3 and are mainly used for making physical contact with the respective signal test points 2 and simultaneously making signal connections.
The network analyzer 5 is mainly used for analyzing a test result, and the test cable a is connected between the test probe 4 and a network test port of the network analyzer 5, and connects the network analyzer 5, the test probe 4 and the signal test board 1 in series.
Therefore, when the signal test is required to be performed on the test cable a, only one end of the test cable a needs to be connected with the test probe 4, and then the other end of the test cable a is connected with the network test port of the network analyzer 5, so that the test signal can be sent to the signal test board 1 through the signal connection between the test probe 4 and the corresponding signal test point 2, and the signal test on the test cable a is completed.
In the meantime, since the signal connection between the test cable a and the signal test board 1 is realized by the point contact of the test probe 4 and the signal test point 2, and the support bracket 3 can move relative to the signal test board 1, the signal connection between the test probe 4 and the signal test point 2 can be conveniently realized, and the signal connection between the test cable a and different signal test points 2 can be adjusted.
Compared with the prior art, an operator does not need to screw and plug a connector plug or consider the problem of connector model matching, the cable signal test can be conveniently and quickly completed, the test efficiency is improved, the test operation process is simplified, and the manual labor load is reduced.
In a preferred embodiment of the signal test points 2, the signal test points 2 are arranged in parallel at a predetermined pitch on the surface of the signal test board 1, and are generally arranged in several rows at the same time. Typically, the rows of signal test points 2 are distributed on the surface of the signal test board 1 along the length direction or the width direction thereof. So set up, be convenient for when carrying out signal test, equidistance removal test probe 4 to different signal test point 2 equidistance. Certainly, the specific distribution of the signal test points 2 is not fixed, and the number and the positions of the signal test points 2 may be adjusted according to different test contents, for example, each signal test point 2 may also be distributed circumferentially on the surface of the signal test board 1.
In a preferred embodiment with respect to the support frame 3, the support frame 3 mainly comprises a support longitudinal bar 31, a support cross bar 32 and a slide rail 33.
The two vertical supporting rods 31 are vertically erected on the ground or the mounting surface, and are generally arranged at the same time and specifically distributed at two sides of the signal testing board 1 in the width direction. The supporting beam 32 is connected between the supporting longitudinal rods 31 at two sides, is generally horizontal, and entirely spans the surface upper position of the signal testing board 1 and keeps a certain vertical height interval with the signal testing board 1. The test probe 4 is vertically connected to the bottom of the supporting beam 32, and can automatically keep a vertical state under the action of gravity. Slide rail 33 sets up in the bottom of each support vertical pole 31, and mainly used makes support vertical pole 31 and support crossbeam 32 wholly remove along the length direction of slide rail 33, and then realizes the concrete test position adjustment of test probe 4, is convenient for form physical butt and signal connection with different signal test point 2.
Generally, the length direction of the slide rail 33 is parallel to the length direction of the signal testing board 1, so that the supporting longitudinal bar 31 and the supporting cross bar 32 can slide along the length direction of the signal testing board 1 as a whole, and further the testing probe 4 is driven to adjust the testing position along the length direction of the signal testing board 1.
Of course, the length direction of the slide rail 33 can also be parallel to the width direction of the signal testing board 1, so that the supporting longitudinal bar 31 and the supporting cross bar 32 can slide along the width direction of the signal testing board 1 as a whole, and further the testing probe 4 is driven to adjust the testing position along the width direction of the signal testing board 1.
Further, on the basis that the length direction of the sliding rail 33 is parallel to the length direction of the signal testing board 1, in order to improve the flexibility of adjusting the testing position of the testing probe 4, in this embodiment, the testing probe 4 is specifically movably connected to the bottom of the supporting beam 32, and the moving direction of the testing probe 4 is parallel to the width direction of the signal testing board 1. Generally, the length direction of the supporting beam 32 is the width direction of the signal test board 1. With such an arrangement, the test position of the test probe 4 can be adjusted along the width direction of the signal test board 1 by the sliding of the test probe 4 on the supporting beam 32. Thus, the two-dimensional position adjustment of the test probe 4 in the length and width directions of the signal test board 1 can be realized simultaneously by combining the sliding of the supporting vertical bar 31 on the sliding rail 33.
In order to facilitate the sliding of the test probe 4 on the supporting beam 32, the supporting beam 32 is provided with a long sliding hole 321 in the embodiment. Specifically, the length direction of the long sliding hole 321 is the length direction of the supporting beam 32, and the head of the test probe 4 is sleeved in the long sliding hole 321 and can slide along the inner wall of the long sliding hole 321.
In a preferred embodiment with respect to the test probe 4, the test probe 4 essentially comprises a barrel 41 and a tip 42. The needle cylinder 41 is a main body structure, is connected to the supporting beam 32, is sleeved in the long sliding hole 321, can slide along the long sliding hole 321, and has a top end mainly used for being connected to one end of the test cable a, for example, connected through a wire clamp or other parts. The needle 42 is disposed at the bottom of the syringe 41 and is mainly used for forming physical contact and signal connection with the signal test point 2 disposed on the surface of the signal test board 1, and transmitting the test signal to the signal test point 2. Typically, the bottom end of the tip 42 remains perpendicular to the surface of the signal test site 2 during testing.
Further, considering that a certain pretightening force is required to be kept between the bottom end of the needle 42 and the signal test point 2 during the test, so as to ensure good contact and prevent deviation, in this embodiment, the needle 42 specifically can perform vertical telescopic motion at the bottom of the needle cylinder 41. Specifically, a spring is provided in the cylinder 41, and the spring is elastically deformed in a vertical direction, and a bottom end of the spring is connected to the needle 42. So set up, when syringe needle 42 and signal test point 2 contact, can form the pretightning force to syringe needle 42 through the compression of spring to guarantee that syringe needle 42 can stably compress tightly at the surface of signal test point 2, and keep perpendicular.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The cable test fixture is characterized by comprising a signal test board (1), a plurality of signal test points (2) arranged on the surface of the signal test board (1), a supporting bracket (3) movably arranged above the signal test board (1) in a spanning mode, test probes (4) arranged on the supporting bracket (3) and used for being abutted to the signal test points (2), and a network analyzer (5) used for analyzing test results, wherein test cables (a) are connected between the test probes (4) and a network test port of the network analyzer (5).
2. The cable testing fixture according to claim 1, wherein the signal testing points (2) are distributed on the surface of the signal testing board (1) in a plurality of rows at predetermined intervals.
3. The cable testing jig according to claim 1, wherein the supporting bracket (3) includes supporting longitudinal rods (31) distributed on both sides of the signal testing board (1) in the width direction, supporting cross beams (32) connected between the supporting longitudinal rods (31), and slide rails (33) arranged at the bottoms of the supporting longitudinal rods (31), and the testing probes (4) are vertically connected to the bottoms of the supporting cross beams (32).
4. The cable test fixture according to claim 3, wherein the length direction of the slide rail (33) is parallel to the length direction of the signal test board (1).
5. The cable testing fixture according to claim 4, wherein the testing probes (4) are movably connected to the bottom of the supporting beam (32), and the moving direction of the testing probes (4) is parallel to the width direction of the signal testing board (1).
6. The cable testing jig according to claim 5, wherein the supporting beam (32) is provided with a long sliding hole (321) along a length direction thereof, and the testing probe (4) is slidably disposed in the long sliding hole (321).
7. The cable testing fixture according to claim 6, wherein the testing probe (4) comprises a needle cylinder (41) disposed in the long sliding hole (321), and a needle head (42) vertically telescopically disposed at a bottom end of the needle cylinder (41).
8. The cable testing jig according to claim 7, wherein springs are disposed in the cylinder (41) and connected to the needle (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857950.6A CN113740637B (en) | 2021-07-28 | 2021-07-28 | Cable test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857950.6A CN113740637B (en) | 2021-07-28 | 2021-07-28 | Cable test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113740637A true CN113740637A (en) | 2021-12-03 |
| CN113740637B CN113740637B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110857950.6A Active CN113740637B (en) | 2021-07-28 | 2021-07-28 | Cable test fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117471182A (en) * | 2023-12-21 | 2024-01-30 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | System, method and storage medium for testing dielectric property of circuit board |
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| Publication number | Publication date |
|---|---|
| CN113740637B (en) | 2023-11-03 |
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