CN204177832U - A kind of matching test fixture - Google Patents
A kind of matching test fixture Download PDFInfo
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- CN204177832U CN204177832U CN201420597292.7U CN201420597292U CN204177832U CN 204177832 U CN204177832 U CN 204177832U CN 201420597292 U CN201420597292 U CN 201420597292U CN 204177832 U CN204177832 U CN 204177832U
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- inductance value
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- electric capacity
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Abstract
The utility model is applicable to circuit board testing technical field, provides a kind of matching test fixture, and being intended to solve existing test fixture is definite value inductance, and its value is discontinuous, and the suitable definite value inductance of more difficult acquisition, makes product test not reach the problem of desirable index.This matching test fixture comprises fixed support and test circuit, described fixed support surface is provided with several gim pegs corresponding with through hole on test board, and conductive contact blade, described test circuit comprises the first adjustable electric inductance value module and the second adjustable electric inductance value module, both inductance value connect adjustable, wherein, the input end of the output terminal connecting test version of described first adjustable electric inductance value module, the output terminal of the input end connecting test version of described second adjustable electric inductance value module.
Description
Technical field
The utility model belongs to circuit board testing technical field, particularly relates to a kind of matching test fixture.
Background technology
Test fixture is the platform of a testing circuit board, and its principle of work utilizes testing needle by the tested point on circuit board and the corresponding point conducting in test machine, and then test machine can by calling corresponding program.
Existing product test method be directly sound table product is placed on fixed resistance value circuit board on directly test, as shown in Figure 1, resistance is specially 50 Ω, just can Complete test speak table product S parameter, sound table product mainly radio-frequency devices, and the S parameter that most intermediate frequency sound table product tests out on the circuit board of fixed resistance value can not meet customer demand, just need this time to increase outer match circuit, in addition existing test fixture can position, operating space less, should not operate during coupling, existing definite value inductance, the performance of product cannot be made to reach optimum, main cause is the value of definite value inductance is discontinuous, many times there is no suitable definite value inductance, product is made not reach desirable index.
Utility model content
The purpose of this utility model is to provide a kind of matching test fixture, and being intended to solve existing test fixture is definite value inductance, and its value is discontinuous, and the suitable definite value inductance of more difficult acquisition, makes product test not reach the problem of desirable index.
A kind of matching test fixture is provided, comprise fixed support and test circuit, described fixed support surface is provided with several gim pegs corresponding with through hole on test board, and conductive contact blade, described test circuit comprises the first adjustable electric inductance value module and the second adjustable electric inductance value module, and both inductance value connect adjustable, wherein, the input end of the output terminal connecting test plate of described first adjustable electric inductance value module, the output terminal of the input end connecting test plate of described second adjustable electric inductance value module.
Further, described first adjustable electric inductance value module is made up of the first controllable impedance and its both sides the first electric capacity in parallel respectively, the second electric capacity, other one end ground connection of described first electric capacity and the second electric capacity.
Further, described second adjustable electric inductance value module is made up of the second controllable impedance and its both sides the 3rd electric capacity in parallel respectively, the 4th electric capacity, other one end ground connection of described 3rd electric capacity, the 4th electric capacity.
Further, described first controllable impedance and the second controllable impedance are adjustable wire-wound inductor.
Further, described first controllable impedance and the second controllable impedance regulate inductance value by the diameter of the diameter of enameled wire, the number of turn, spiral winding and pitch.
The utility model embodiment, by adopting adjustable wire-wound inductor to increase, the test circuit for different product that can be a large amount of, generate corresponding special matching test fixture for different product, reliability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of the existing matching test fixture that background technology provides;
Fig. 2 is the structural representation of the test circuit of the matching test fixture that the utility model embodiment provides;
Fig. 3 is the structural representation of the matching test fixture that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Please with reference to Fig. 2, the matching test fixture that the utility model embodiment provides comprises fixed support and test circuit, described fixed support surface is provided with several gim pegs corresponding with through hole on test board, and conductive contact blade, it is characterized in that, described test circuit comprises the first adjustable electric inductance value module 1 and the second adjustable electric inductance value module 2, both inductance value connect adjustable, wherein, the input end of the output terminal connecting test plate of described first adjustable electric inductance value module 1, the output terminal of the input end connecting test plate of described second adjustable electric inductance value module 2.Concrete test macro as shown in Figure 3.
Further, described first adjustable electric inductance value module 1 is made up of the first electric capacity 12, second electric capacity 13 that the first controllable impedance 11 is in parallel respectively with its both sides, other one end ground connection of described first electric capacity 12 and the second electric capacity 13.
Further, described second adjustable electric inductance value module 2 is made up of the second controllable impedance 21 and its both sides the 3rd electric capacity 22 in parallel respectively, the 4th electric capacity 23, other one end ground connection of described 3rd electric capacity 22, the 4th electric capacity 23.
Further, described first controllable impedance 11 and the second controllable impedance 21 are adjustable wire-wound inductor.
Further, described first controllable impedance 11 and the second controllable impedance 21 regulate inductance value by the diameter of the diameter of enameled wire, the number of turn, spiral winding and pitch.
The utility model embodiment, by adopting adjustable wire-wound inductor to increase, the test circuit for different product that can be a large amount of, generate corresponding special matching test fixture for different product, reliability is strong.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a matching test fixture, comprise fixed support and test circuit, described fixed support surface is provided with several gim pegs corresponding with through hole on test board, and conductive contact blade, it is characterized in that, described test circuit comprises the first adjustable electric inductance value module and the second adjustable electric inductance value module, both inductance value connect adjustable, wherein, the input end of the output terminal connecting test plate of described first adjustable electric inductance value module, the output terminal of the input end connecting test plate of described second adjustable electric inductance value module.
2. matching test fixture as claimed in claim 1, is characterized in that, described first adjustable electric inductance value module is made up of the first controllable impedance and its both sides the first electric capacity in parallel respectively, the second electric capacity, other one end ground connection of described first electric capacity and the second electric capacity.
3. matching test fixture as claimed in claim 1, is characterized in that, described second adjustable electric inductance value module is made up of the second controllable impedance and its both sides the 3rd electric capacity in parallel respectively, the 4th electric capacity, other one end ground connection of described 3rd electric capacity, the 4th electric capacity.
4. matching test fixture as claimed in claim 1, it is characterized in that, described first controllable impedance and the second controllable impedance are adjustable wire-wound inductor.
5. matching test fixture as claimed in claim 4, is characterized in that, described first controllable impedance and the second controllable impedance regulate inductance value by the diameter of the diameter of enameled wire, the number of turn, spiral winding and pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597292.7U CN204177832U (en) | 2014-10-15 | 2014-10-15 | A kind of matching test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597292.7U CN204177832U (en) | 2014-10-15 | 2014-10-15 | A kind of matching test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204177832U true CN204177832U (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420597292.7U Active CN204177832U (en) | 2014-10-15 | 2014-10-15 | A kind of matching test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204177832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001500A (en) * | 2018-08-21 | 2018-12-14 | 淮阴师范学院 | A kind of radio-frequency devices test probe of embedded inductance |
-
2014
- 2014-10-15 CN CN201420597292.7U patent/CN204177832U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001500A (en) * | 2018-08-21 | 2018-12-14 | 淮阴师范学院 | A kind of radio-frequency devices test probe of embedded inductance |
| CN109001500B (en) * | 2018-08-21 | 2024-01-02 | 淮阴师范学院 | Radio frequency device test probe of embedded inductance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: No. 101, 201, 301, 401, building 2, phase I, intelligent manufacturing industrial park, high tech Zone, Wuxing District, Huzhou City, Zhejiang Province, 313000 Patentee after: Zhejiang Huayuan Micro Electronics Technology Co.,Ltd. Address before: 518000 floor 1 and 3, building e, No.5 Zhuangcun Road, xiner community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HUAYUAN MICRO ELECTRONIC TECHNOLOGY Co.,Ltd. |