CN218675079U

CN218675079U - Third-order intermodulation test fixture

Info

Publication number: CN218675079U
Application number: CN202222858136.9U
Authority: CN
Inventors: 李燕禄; 汪有超; 黄月桂
Original assignee: Fujian Quanyou Information Technology Co ltd
Current assignee: Fujian Quanyou Information Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-21
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a third-order intermodulation test fixture, belong to third-order intermodulation test equipment technical field, pass through cable junction with right cable junction in advance on the passive intermodulation interference analysis appearance, place the standing groove with the device to be tested in, the advancing mechanism through both sides makes the left side board and the right side board on both sides remove to placing the platform, make left cable junction and right cable junction insert the spread groove in the articulate of the device to be tested of joint in the draw-in groove, test, the test finishes the back left side board and the right side board returns, take out the device to be tested, it can retest to change the device to be tested. And all the work of connection, detection, replacement and the like can be completed rapidly by only one person. The test fixture has the advantages of simple and reasonable structure, convenience in use, rapidness in connection and disassembly, good contact of a switch and the like, and is most suitable for carrying out third-order intermodulation detection on a large number of microwave devices.

Description

Third-order intermodulation test fixture

Technical Field

The utility model relates to a third-order intermodulation test equipment technical field especially relates to a third-order intermodulation test fixture.

Background

The third-order intermodulation distortion generated by two frequencies is a common problem in a modern communication system, the performance of the communication system can be reduced by the third-order intermodulation distortion, other receivers can be interfered by an overlarge third-order intermodulation product in a transmitting signal, and finally the receivers can not work normally, the maximum intermodulation product generated by passive devices such as a filter, a duplexer, a coupler, a power distributor and the like is the third-order intermodulation distortion, along with the rapid development of the communication system and the improvement of the system quality, the third-order intermodulation distortion is more and more emphasized, and the third-order intermodulation index is required to be tested on the passive devices from the beginning of 2008.

The domestic product also requires that the third-order intermodulation test is carried out on all the passive device products in 2009. The traditional intermodulation test is completed by matching three to four persons, and the cable, the microwave device, the test instrument and the test load are respectively connected in a threaded connection mode and then are tested by the passive intermodulation interference analyzer.

At least a plurality of cable connectors are required to be completely unscrewed from the connector of the tested device one by one and then screwed to the socket of the tested device one by one when replacing one product. The surface of the device is easily scratched in the operation process, the socket of the device is easily damaged by a threaded connection mode, the cable is also easily damaged, and the biggest defects are that the connection speed is too low, the time is too long, and the testing efficiency is very low.

For example, a microstrip four-power divider is manually installed for four to five minutes once, and the actual test is enough for thirty seconds, so that the detection time is obviously long, the efficiency is low, a test instrument is not fully utilized, and the requirement of detecting mass products cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a third-order intermodulation test fixture.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a three-order intermodulation test fixture, which comprises a workbench, wherein a placing table for placing a device to be tested is arranged at the top end of the workbench, and a movable left side plate and a movable right side plate are respectively arranged at two sides of the placing table; and a left cable connector is arranged on the left side plate, and a right cable connector is arranged on the right side plate.

The utility model discloses preferred technical scheme lies in, it is equipped with the standing groove to place the bench top, the standing groove both sides are equipped with the draw-in groove, but the joint of device under test in the draw-in groove.

The utility model discloses preferred technical scheme lies in, it all is equipped with the spread groove to place a top both sides, the spread groove with the draw-in groove intercommunication.

The utility model discloses preferred technical scheme lies in, left side board and right side board are kept away from one side of placing the platform all is equipped with advancing mechanism.

The utility model discloses preferred technical scheme lies in, advancing mechanism is including propelling the cylinder, the flexible serving of propelling the cylinder is equipped with the mounting panel, left side board or right side board demountable installation in on the mounting panel.

The utility model discloses preferred technical scheme lies in, it is equipped with the apron of liftable to place the bench side.

The utility model has the advantages that:

the utility model provides a pair of third-order intermodulation test fixture, in advance with left cable joint and right cable joint through cable junction to passive intermodulation interference analysis appearance, place the standing groove with the device under test in, the advancing mechanism through both sides makes the left side board and the right side board on both sides remove to placing the platform, make left cable joint and right cable joint insert in the spread groove in the joint connection of the device under test of joint in the draw-in groove, test, the test finishes back left side board and right side board and returns, take out the device under test, it can retest to change the device under test. And all the work of connection, detection, replacement and the like can be completed rapidly by only one person. The test fixture has the advantages of simple and reasonable structure, convenience in use, rapidness in connection and disassembly, good contact of the switch and the like, and is the test fixture which is most suitable for carrying out third-order intermodulation detection on large-batch microwave devices.

Drawings

FIG. 1 is a schematic structural view of the present invention when untested;

FIG. 2 is a schematic structural view of the utility model during testing after connection;

in the figure:

1. a work table; 2. a placing table; 3. a left side plate; 4. a right side plate; 5. a left cable connector; 6. a right cable connector; 7. a placement groove; 8. a card slot; 9. connecting grooves; 10. a propulsion mechanism; 11. propelling the cylinder; 12. mounting a plate; 13. a cover plate; 14. a device.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in the figure, the third-order intermodulation test fixture provided by the embodiment comprises a workbench 1, wherein a placing table 2 for placing a device to be tested is arranged at the top end of the workbench 1, the device to be tested 14 can be clamped on the placing table 2 and cannot move, and a movable left side plate 3 and a movable right side plate 4 are respectively arranged on two sides of the placing table 2; be equipped with left cable joint 5 on the left side board 3, be equipped with right cable joint 6 on the right side board 4, make left cable joint 5 and right cable joint 6 connect the interconnect of joint on the device 14 that awaits measuring through removing left side board 3 and right side board 4, detect the completion back, left side board 3 and right side board 4 reset, change device 14.

The top end of the placing table 2 is provided with a placing groove 7, the two sides of the placing groove 7 are provided with clamping grooves 8, and the joint of the device to be tested 14 can be clamped in the clamping grooves 8, so that the device to be tested 14 can be placed conveniently, and the device 14 can not move. Place 2 top both sides of platform and all be equipped with spread groove 9, spread groove 9 with draw-in groove 8 intercommunication. When left cable joint 5 and right cable joint 6 were close to, alignment spread groove 9 inserted to with the articulate in the corresponding draw-in groove 8, thereby realize the accurate quick butt joint of seeing.

And a propelling mechanism 10 is arranged on one side of the left side plate 3 and one side of the right side plate 4 far away from the placing table 2. The propulsion mechanism 10 comprises a propulsion cylinder 11, a mounting plate 12 is arranged at the telescopic end of the propulsion cylinder 11, and the left side plate 3 or the right side plate 4 is detachably mounted on the mounting plate 12. After the device to be tested is placed in the placing groove 7, the propulsion cylinder 11 pushes the left side plate 3 and the right side plate 4, so that the left cable connector 5 and the right cable connector 6 are in butt joint with the device, the left side plate 4 and the right side plate 4 are detachably mounted on the mounting plate 12, the left side plate 4 and the right side plate 4 are convenient to replace differently, and different devices 14 are detected.

A liftable cover plate 13 is arranged above the placing table 2. After the device under test 14 is placed, the device is pressed from above by the cover plate 13 so that the device 14 does not move during docking.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a third order intermodulation test fixture which characterized in that:

the device comprises a workbench (1), wherein a placing table (2) for placing a device to be tested (14) is arranged at the top end of the workbench (1), and a movable left side plate (3) and a movable right side plate (4) are respectively arranged on two sides of the placing table (2);

the cable connector is characterized in that a left cable connector (5) is arranged on the left side plate (3), and a right cable connector (6) is arranged on the right side plate (4).

2. The third order intermodulation test fixture of claim 1, wherein:

the device to be tested is characterized in that a placing groove (7) is formed in the top end of the placing table (2), clamping grooves (8) are formed in two sides of the placing groove (7), and a connector of the device to be tested (14) can be clamped in the clamping grooves (8).

3. The third order intermodulation test fixture of claim 2 wherein:

place platform (2) top both sides and all be equipped with spread groove (9), spread groove (9) with draw-in groove (8) intercommunication.

4. The third order intermodulation test fixture of claim 1, wherein:

and a propelling mechanism (10) is arranged on one side of the left side plate (3) and one side of the right side plate (4) far away from the placing table (2).

5. The third order intermodulation test fixture of claim 4, wherein:

the propulsion mechanism (10) comprises a propulsion cylinder (11), a mounting plate (12) is arranged at the telescopic end of the propulsion cylinder (11), and the left side plate (3) or the right side plate (4) is detachably mounted on the mounting plate (12).

6. The third order intermodulation test fixture of claim 1, wherein:

a liftable cover plate (13) is arranged above the placing table (2).