CN105548768B - A kind of device and method for testing millimeter wave rotary joint variable quantity - Google Patents
A kind of device and method for testing millimeter wave rotary joint variable quantity Download PDFInfo
- Publication number
- CN105548768B CN105548768B CN201610020344.8A CN201610020344A CN105548768B CN 105548768 B CN105548768 B CN 105548768B CN 201610020344 A CN201610020344 A CN 201610020344A CN 105548768 B CN105548768 B CN 105548768B
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- Prior art keywords
- millimeter wave
- rotary joint
- wave rotary
- variable quantity
- connector
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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
Abstract
The present invention relates to rotary joint to survey field, and in particular to a kind of device and method for testing millimeter wave rotary joint variable quantity.The calibration port of the device and vector network analyzer is connected to test the variable quantity of millimeter wave rotary joint, including the first millimeter wave rotary joint and the second millimeter wave rotary joint, described the first millimeter wave rotary joint and the second millimeter wave rotary joint is connected with each other by connector, one end of described connector is fixedly connected with the round end of the first millimeter wave rotary joint, the other end of connector is fixedly connected with the second millimeter wave rotary joint round end, pass through rotary connector, first millimeter wave rotary joint and the second millimeter wave rotary joint and connector synchronous rotary.The device effectively solves the inaccurate problem of millimeter wave rotary joint test variable quantity, make test result more can accurately reactor product truth.
Description
【Technical field】
The present invention relates to rotary joint testing field, and in particular to a kind of device for testing millimeter wave rotary joint variable quantity
And method.
【Background technology】
The characteristics of rotary joint is by constantly rotating transmission high-frequency signal during use, and requires its high frequency
Energy (voltage standing wave ratio, insertion loss, phase etc.) variable quantity is small, so can be only achieved the purpose of the stable transmission of high-frequency signal.
The change magnitude of the relatively good millimeter wave rotary joint of performance parameter is very small at present, in order to test this
Variable quantity can not introduce other variable quantities in a device at all, and otherwise, test result can not embody millimeter wave rotation and close
The running parameter of section.The handling characteristics of rotary joint determine that it is required for detection to revolve in links such as production and processing, test, examinations
Turn high frequency performance of the joint under rotating environment, so could more intuitively observe that can rotary joint reach that client uses will
Ask.
So problem just comes out, and often manufacturing enterprise uses the device of the real use state of enterprise, Zhi Neng
Tested on vector network analyzer, and vector network analyzer can not carry out rotary test in itself, can only be by the device of auxiliary
The effect for reaching similar rotation is tested.
As shown in Figures 1 and 2, currently used method of testing is to add survey in two calibration ports of vector network analyzer
CA cable assembly 4 is tried, the test cable component needs special make, it is desirable to CA cable assembly one end model and vector network analyzer
It is identical, and can use inserting, the round end of threeth millimeter wave rotary joint 3 of the other end model with being tested is identical, and can be with
Use inserting.And it is required that the CA cable assembly has flexibility good, bending radius is small, high frequency performance index stability waits well spy
Point.Testing the principle of rotary joint in this way is：Closed during test using rotary test CA cable assembly to drive
Section rotation.
It is not difficult to find out from the test philosophy of the method for testing, not only rotary joint rotates in test process, test cable
Component is also rotating.High frequency performance variable quantity of the last rotary joint drawn under rotational case not only includes rotary joint
The variable quantity of itself is also inaccurate comprising converted quantity test cable component when rotated, data.Under this test device, only
Have that the variable quantity of test cable component is small as far as possible, can just make test result more accurate.
But current present situation is, in millimeter wave frequency band, without the rotationally-varying amount ratio of the electric property of a CA cable assembly
Rotary joint is small, and CA cable assembly bending is often, and electricity function index change can be bigger.The result so tested out
The real variable quantity of rotary joint can not be reflected.Here we find a kind of method and can solve this problem.
【The content of the invention】
In order to solve problems of the prior art, it is an object of the invention to provide one kind test millimeter wave rotation to close
The device and method of variable quantity is saved, to solve the problems, such as that prior art test is inaccurate.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of device for testing millimeter wave rotary joint variable quantity, is connected to the calibration port of vector network analyzer
The variable quantity of millimeter wave rotary joint, including the first millimeter wave rotary joint 5 and the second millimeter wave rotary joint 6 are tested, it is described
The first millimeter wave rotary joint 5 and the second millimeter wave rotary joint 6 be connected with each other by connector 7, described connector 7
One end is fixedly connected with the round end of the first millimeter wave rotary joint 5, the other end of connector 7 and the second millimeter wave rotary joint
6 round ends are fixedly connected, and by rotary connector 7, the first millimeter wave rotary joint 5 and the second millimeter wave rotary joint 6 are with connecting
Connect the synchronous rotary of device 7.
The first described millimeter wave rotary joint 5 is identical with the type of the second millimeter wave rotary joint 6.
The fixing end of the first described millimeter wave rotary joint 5 and the fixing end of the second millimeter wave rotary joint 6 are and school
Quasi- port rotatable connection.
The reflectance factor of described connector 7 is not more than 0.015.
A kind of method for testing millimeter wave rotary joint variable quantity, comprises the following steps：
Step 1：Selection at least three type identical millimeter wave rotary joint difference combination of two, by every group of rotation
Joint connects and composes millimeter wave rotary joint test device and is connected respectively with vector network analyzer and surveyed with connector 7
Amount；
Step 2：By the both ends of same group of two millimeter wave rotary joint test devices in step 1 respectively with vector net
First calibration port 1 of network analyzer is connected with the second calibration port 2；
Step 3：Rotary connector 7, obtained by vector network analyzer measurement to be measured with two of group in step 2
The total variation of millimeter wave rotary joint；
Step 4：The total variation of at least three groups millimeter wave rotary joints is obtained by step 2 and step 3 measurement；
Step 5：The change of every millimeter wave rotary joint to be measured is calculated in the total variation measured by step 4
Amount.
In described step five, the variable quantity of every millimeter wave rotary joint is calculated by equation below
Wherein：X, y and z is respectively variable quantity corresponding to any three millimeter wave rotary joints difference to be measured；A, before B and C is respectively
The total variation measured respectively during any three millimeter waves rotary joint combination of two is stated, the solution of the formula is respectively to be measured appoints
The variable quantity of three millimeter wave rotary joints of meaning.
Compared with prior art, the present invention has technique effect beneficial below：
A kind of device and method of test millimeter wave rotary joint variable quantity of the present invention will be to be measured by using connector
Two millimeter wave rotary joints connect to be formed test millimeter wave rotary joint variable quantity device, the connector with it is to be measured
Millimeter wave rotary joint between relative to not rotating, to be rotatably connected between millimeter wave rotary joint and calibration port to be measured,
Rotary connector can drive two millimeter wave rotary joints to be measured to synchronize and rotate and measure changing value, due to even
It is synchronous axial system to connect device and two millimeter wave rotary joints to be measured, the test device that connector forms with millimeter wave rotary joint
Overall internal structure is relatively indeclinable, therefore whole test system will not be given to introduce extra variable quantity, passes through test
Go out total variation.
Further, the present invention completely can be brought into connector by testing multigroup millimeter wave rotary joint to be measured
Influence factor eliminates, and by testing out the total variation of multigroup millimeter wave rotary joint, obtains each millimeter wave rotation to be measured
The variable quantity in joint, the test result most can accurately react the change of rotary joint each high-frequency parameter during rotation
Change situation, most accurate information is provided for user to judge whether product can reach the requirement of system, this method is simple to operate,
Expense is low, and data are accurately credible.
【Brief description of the drawings】
Fig. 1 is the schematic device that prior art method of testing uses；
Fig. 2 is the device to test process schematic that prior art method of testing uses；
Fig. 3 is the schematic diagram of the device of present invention test millimeter wave rotary joint variable quantity；
Fig. 4 is the device to test process schematic of present invention test millimeter wave rotary joint variable quantity；
Fig. 5 is the structural representation of present invention millimeter wave rotary joint to be measured.
Wherein, the 1, first calibration port；2nd, the second calibration port；3rd, the 3rd millimeter wave rotary joint；4th, test cable group
Part；5th, the first millimeter wave rotary joint；6th, the second millimeter wave rotary joint；7th, connector.
【Embodiment】
It is next below in conjunction with the accompanying drawings that the present invention is further illustrated.
As shown in Figures 3 to 5, a kind of device for testing millimeter wave rotary joint variable quantity, with vector network analyzer
Calibration port is connected to test the variable quantity of millimeter wave rotary joint, including the first millimeter wave rotary joint 5 and second millimeter
Ripple rotary joint 6, the first described millimeter wave rotary joint 5 and the second millimeter wave rotary joint 6 are mutually interconnected by connector 7
Connect, one end of described connector 7 is fixedly connected with the round end of the first millimeter wave rotary joint 5, the other end of connector 7 with
The round end of second millimeter wave rotary joint 6 is fixedly connected, by rotary connector 7, the first millimeter wave rotary joint 5 and the second milli
Metric wave rotary joint 6 and the synchronous rotary of connector 7.
The first described millimeter wave rotary joint 5 is identical with the type of the second millimeter wave rotary joint 6.
The fixing end of the first described millimeter wave rotary joint 5 and the fixing end of the second millimeter wave rotary joint 6 are and school
Quasi- port rotatable connection.
The reflectance factor of described connector 7 is not more than 0.015.
A kind of method for testing millimeter wave rotary joint variable quantity, comprises the following steps：
Step 1：Selection at least three type identical millimeter wave rotary joint difference combination of two, by every group of rotation
Joint connects and composes millimeter wave rotary joint test device and is connected respectively with vector network analyzer and surveyed with connector 7
Amount；
Step 2：By the both ends of same group of two millimeter wave rotary joint test devices in step 1 respectively with vector net
First calibration port 1 of network analyzer is connected with the second calibration port 2；
Step 3：Rotary connector 7, obtained by vector network analyzer measurement to be measured with two of group in step 2
The total variation of millimeter wave rotary joint；
Step 4：The total variation of at least three groups millimeter wave rotary joints is obtained by step 2 and step 3 measurement；
Step 5：The change of every millimeter wave rotary joint to be measured is calculated in the total variation measured by step 4
Amount.
In described step five, the variable quantity of every millimeter wave rotary joint is calculated by equation below
Wherein：X, y and z is respectively variable quantity corresponding to any three millimeter wave rotary joints difference to be measured；A, before B and C is respectively
The total variation measured respectively during any three millimeter waves rotary joint combination of two is stated, the solution of equation group is respectively to be measured
The variable quantity of any three millimeter wave rotary joints.
Further, specific test philosophy of the invention and method are as follows：
Two type identical millimeter wave rotary joints are tested simultaneously in test, by two rotary joints with one and it
Mutually static connector 7 link together, pass through milli of the connector 7 with the both ends of movement connector 7 among rotating after connection
Metric wave rotary joint synchronous rotary, the result of such rotary test are total embodiments of two millimeter wave rotary joint variable quantities.Though
So in test process, middle connector 7 is also rotating, but its millimeter wave rotary joint simply with both ends is doing 360
The rotation of degree, the millimeter wave rotary joint at both ends change with the internal structure of the test device of the composition of connector 7 without relative,
Will not thus whole test system be given to introduce extra variable quantity.
The device of the test millimeter wave rotary joint variable quantity of the present invention is when in use, it is desirable to which the first calibration port 1 is connected to
The fixing end of first millimeter wave rotary joint 5, the second calibration port 2 is connected to the fixing end of the second millimeter wave rotary joint 6.Will
The rotation with the first millimeter wave rotary joint 5 and the second millimeter wave rotary joint 6 respectively of the both ends of the connector 7 used during test
End connection.After being connected, the first millimeter wave rotary joint 5 and the second millimeter wave is driven to rotate and close by rotary connector 7
6 synchronous rotaries are saved, so as to test the total variation for drawing the first millimeter wave rotary joint 5 and the second millimeter wave rotary joint 6.It is logical
Cross calculating and draw 6 respective variable quantity of the first millimeter wave rotary joint 5 and the second millimeter wave rotary joint respectively.
In test：
The first step：Select the millimeter wave rotary joint of at least three same types, numbering is X, Y and Z respectively, and this set this three
The variable quantity of millimeter wave rotary joint is respectively x, y and z.
Second step：From a even machine 7, it is desirable to which the high frequency performance of itself is very good in millimeter wave band, at least instead
Coefficient is penetrated within 0.015, and two ports of the connector 7 may be coupled to the fixing end of millimeter wave rotary joint.
3rd：It is that the first calibration port 1 and the second calibration port 2 are equal by two input ports of vector network analyzer
The port type of millimeter wave rotary joint fixing end can be directly connected to by being connected into.
4th step：By any two millimeter waves rotary joint combination of two, then with the test device that connector 7 is formed with
The calibration port connection of vector network analyzer is tested, and combination is respectively (X, Y), (X, Z) and (Y, Z), according to this
Combined test show that the total variation of two millimeter wave rotary joints is respectively A, B and C.
5th step：Pass through below equation：
X+y=A
X+z=B
Y+z=C
Draw：
X=(A+B-C)/2
Y=(C-B+A)/2
Z=(B-A+C)/2
The influence factor that connector is brought into can be eliminated completely by testing multigroup millimeter wave rotary joint to be measured, most
Most accurate test result is drawn eventually, most can accurately react the change of rotary joint each high-frequency parameter during rotation
Change situation, most accurate information is provided for user to judge whether product can reach the requirement of system, this method is simple to operate,
Expense is low, and data are accurately credible.It is effective to solve the inaccurate problem of single channel rotary joint test variable quantity, make test result
More can accurately reactor product truth.
Claims (5)
1. a kind of device for testing millimeter wave rotary joint variable quantity, is connected to survey with the calibration port of vector network analyzer
Try the variable quantity of millimeter wave rotary joint, it is characterised in that rotate including the first millimeter wave rotary joint (5) and the second millimeter wave
Joint (6), the first described millimeter wave rotary joint (5) are mutually interconnected with the second millimeter wave rotary joint (6) by connector (7)
Connect, one end of described connector (7) is fixedly connected with the round end of the first millimeter wave rotary joint (5), connector (7) it is another
One end is fixedly connected with second millimeter wave rotary joint (6) round end, and by rotary connector (7), the rotation of the first millimeter wave is closed
Save (5) and the second millimeter wave rotary joint (6) and connector (7) synchronous rotary；The first described millimeter wave rotary joint (5)
Fixing end and the fixing end of the second millimeter wave rotary joint (6) are rotatably connected with calibration port.
2. a kind of device for testing millimeter wave rotary joint variable quantity according to claim 1, it is characterised in that described
First millimeter wave rotary joint (5) is identical with second millimeter wave rotary joint (6) type.
3. a kind of device for testing millimeter wave rotary joint variable quantity according to claim 1, it is characterised in that described
The reflectance factor of connector (7) is not more than 0.015.
A kind of 4. method for testing millimeter wave rotary joint variable quantity, it is characterised in that comprise the following steps：
Step 1：Selection at least three type identical millimeter wave rotary joint difference combination of two, by every group of rotary joint
Connect and compose millimeter wave rotary joint test device with connector (7) and be connected respectively with vector network analyzer and measure；
Step 2：The both ends of same group of two millimeter wave rotary joint test devices in step 1 are divided with vector network respectively
The first calibration port (1) of analyzer is connected with the second calibration port (2)；
Step 3：Rotary connector (7), obtained by vector network analyzer measurement in step 2 with two millis to be measured of group
The total variation of metric wave rotary joint；
Step 4：The total variation of at least three groups millimeter wave rotary joints is obtained by step 2 and step 3 measurement；
Step 5：The variable quantity of every millimeter wave rotary joint to be measured is calculated in the total variation measured by step 4.
5. a kind of method for testing millimeter wave rotary joint variable quantity according to claim 4, it is characterised in that described
In step 5, the variable quantity of every millimeter wave rotary joint is calculated by equation belowWherein：X, y and z points
Variable quantity corresponding to any three millimeter wave rotary joints difference that Wei be not to be measured；A, B and C is respectively foregoing any three millimeters
The total variation measured respectively during ripple rotary joint combination of two, the solution of the formula is respectively any three millimeter waves rotation to be measured
Turn the variable quantity in joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020344.8A CN105548768B (en) | 2016-01-13 | 2016-01-13 | A kind of device and method for testing millimeter wave rotary joint variable quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020344.8A CN105548768B (en) | 2016-01-13 | 2016-01-13 | A kind of device and method for testing millimeter wave rotary joint variable quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105548768A CN105548768A (en) | 2016-05-04 |
| CN105548768B true CN105548768B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020344.8A Active CN105548768B (en) | 2016-01-13 | 2016-01-13 | A kind of device and method for testing millimeter wave rotary joint variable quantity |
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| CN (1) | CN105548768B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308334B (en) * | 2019-05-31 | 2021-04-13 | 西安空间无线电技术研究所 | Rotating joint standing wave ratio and insertion loss testing method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995837A (en) * | 1989-08-30 | 1991-02-26 | Amp Incorporated | Precision test connector |
| US5824953A (en) * | 1995-12-26 | 1998-10-20 | Electronics And Telecommunications Research Institute | Coaxial connector for vacuum chamber for microwave and millimeter wave measurement |
| CN201773921U (en) * | 2010-08-04 | 2011-03-23 | 杨春 | Waveguide coaxial microwave converter |
| CN201993421U (en) * | 2010-11-18 | 2011-09-28 | 四川九洲电器集团有限责任公司 | System for automatically testing front ends of millimeter waves |
| CN202018486U (en) * | 2011-03-07 | 2011-10-26 | 中国电子科技集团公司第十三研究所 | Testing device for microwave surface-mounting component |
| CN202471767U (en) * | 2012-02-23 | 2012-10-03 | 深圳市速联连接器有限公司 | Quick point test connector |
| CN204517073U (en) * | 2015-04-22 | 2015-07-29 | 陕西华达科技股份有限公司 | A kind of RF coaxial adapters with spinfunction |
| CN205484590U (en) * | 2016-01-13 | 2016-08-17 | 西安艾力特电子实业有限公司 | Device of test millimeter wave rotary joint change volume |
-
2016
- 2016-01-13 CN CN201610020344.8A patent/CN105548768B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995837A (en) * | 1989-08-30 | 1991-02-26 | Amp Incorporated | Precision test connector |
| US5824953A (en) * | 1995-12-26 | 1998-10-20 | Electronics And Telecommunications Research Institute | Coaxial connector for vacuum chamber for microwave and millimeter wave measurement |
| CN201773921U (en) * | 2010-08-04 | 2011-03-23 | 杨春 | Waveguide coaxial microwave converter |
| CN201993421U (en) * | 2010-11-18 | 2011-09-28 | 四川九洲电器集团有限责任公司 | System for automatically testing front ends of millimeter waves |
| CN202018486U (en) * | 2011-03-07 | 2011-10-26 | 中国电子科技集团公司第十三研究所 | Testing device for microwave surface-mounting component |
| CN202471767U (en) * | 2012-02-23 | 2012-10-03 | 深圳市速联连接器有限公司 | Quick point test connector |
| CN204517073U (en) * | 2015-04-22 | 2015-07-29 | 陕西华达科技股份有限公司 | A kind of RF coaxial adapters with spinfunction |
| CN205484590U (en) * | 2016-01-13 | 2016-08-17 | 西安艾力特电子实业有限公司 | Device of test millimeter wave rotary joint change volume |
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| CN105548768A (en) | 2016-05-04 |
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