CN106353608B - Positioning device for measuring MIMO antenna directional pattern - Google Patents
Positioning device for measuring MIMO antenna directional pattern Download PDFInfo
- Publication number
- CN106353608B CN106353608B CN201610793549.XA CN201610793549A CN106353608B CN 106353608 B CN106353608 B CN 106353608B CN 201610793549 A CN201610793549 A CN 201610793549A CN 106353608 B CN106353608 B CN 106353608B
- Authority
- CN
- China
- Prior art keywords
- axis
- platform
- axis translation
- translation adjusting
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A positioning device for measuring MIMO antenna directional patterns comprises a supporting unit, wherein the supporting unit is positioned at the bottom of the device so that the device is horizontally placed on the ground; the X-axis translation adjusting table is positioned at the top of the supporting unit; a Y-axis translation adjusting table located at the top of the X-axis translation adjusting table; the scissor type lifting platform is positioned at the top of the Y-axis translation adjusting platform; the Z-axis rotating platform is positioned at the top of the scissor type lifting platform; and the antenna axial rotating mechanism is positioned at the top of the Z-axis rotating table. The antenna can be adjusted from all dimensions, and the directional diagram obtained by measurement through the device is higher in precision.
Description
Technical Field
The invention relates to a positioning device for measuring a directional diagram of a MIMO antenna.
Background
The prior art does not have a positioning device specially used for measuring a directional diagram of the MIMO antenna, generally adopts a turntable with a fixed antenna, and has a simpler structure and low measurement precision.
Disclosure of Invention
To overcome the deficiencies of the prior art, the present invention provides a positioning device for measuring MIMO antenna patterns.
The technical scheme provided by the invention is as follows:
a positioning device for measuring MIMO antenna directional patterns comprises a supporting unit, wherein the supporting unit is positioned at the bottom of the device so that the device is horizontally placed on the ground;
the X-axis translation adjusting table is positioned at the top of the supporting unit;
a Y-axis translation adjusting table located at the top of the X-axis translation adjusting table;
the scissor type lifting platform is positioned at the top of the Y-axis translation adjusting platform;
the Z-axis rotating platform is positioned at the top of the scissor type lifting platform;
the antenna axial rotating mechanism is positioned at the top of the Z-axis rotating table;
the antenna axial rotating mechanism comprises an X-axis translation adjusting platform, a Y-axis translation adjusting platform, a scissor-type lifting platform and a Z-axis rotating platform, wherein the X-axis translation adjusting platform and the Y-axis translation adjusting platform are used for adjusting the horizontal position of the antenna axial rotating mechanism; the antenna axial rotating mechanism is used for enabling the MIMO antenna to be located in a plane perpendicular to a horizontal plane to rotate.
Preferably, the X-axis translation adjustment stage and the Y-axis translation adjustment stage have the same structure and are perpendicular to each other in the moving direction of the horizontal plane.
Preferably, the bottom of the X-axis translation adjusting table is fixed to the top of the supporting unit, the X-axis translation adjusting table comprises an X-axis sliding lead screw, one end of the X-axis sliding lead screw is controlled by a shaft control motor to rotate, and the X-axis sliding lead screw drives the top platform of the X-axis translation adjusting table to move along the X-axis direction;
the bottom of the Y-axis translation adjusting platform is fixed on a top platform of the X-axis translation adjusting platform driven by the sliding lead screw, the Y-axis translation adjusting platform comprises a Y-axis sliding lead screw, one end of the Y-axis sliding lead screw is controlled to rotate by the shaft control motor, and the Y-axis sliding lead screw drives the top platform of the Y-axis translation adjusting platform to move along the Y-axis direction.
Preferably, the scissor type lifting platform comprises an X-shaped lifting mechanism, the centers of two straight rods of the X-shaped lifting mechanism are rotatably connected through pin shafts, and the top and the bottom of the X-shaped lifting mechanism are respectively rotatably connected with the platform of the scissor type lifting platform and the top platform of the Y-axis translation adjusting platform through pin shafts.
Preferably, the scissor-type lifting platform further comprises a lifting motor, a motor body of the lifting motor is fixed on the top platform of the Y-axis translation adjusting platform, a rotating shaft of the lifting motor is fixedly connected with a screw rod sleeve, a screw rod is arranged in the screw rod sleeve, one end of the screw rod is positioned in the screw rod sleeve, and the other end of the screw rod is fixed on the upper part of the X-type lifting mechanism through a pin shaft;
and the rotating shaft of the lifting motor drives the screw rod to move when rotating, so that the screw rod drives the X-shaped lifting mechanism to move in the vertical direction.
Preferably, the Z-axis rotating platform comprises a Z-axis control motor, the Z-axis control motor drives a vertical rotating shaft to rotate, and the top of the vertical rotating shaft is a platform of the Z-axis rotating platform.
Preferably, the antenna axial rotation mechanism comprises an antenna shaft control motor, the antenna shaft control motor is used for driving a planetary reducer, and the planetary reducer is used for driving the MIMO antenna to rotate.
Preferably, the Z-axis rotating table includes a horizontal scale thereon.
Preferably, the X-axis translation adjusting table and the Y-axis translation adjusting table respectively include an X-axis translation graduated scale and a Y-axis translation graduated scale thereon.
Preferably, a linear bearing guide rail capable of translating along the X axis is arranged between the X axis translation adjusting table and the supporting unit;
and a linear bearing guide rail capable of translating along the Y axis is arranged between the Y-axis translation adjusting table and the X-axis translation adjusting table.
The invention has the beneficial effects that:
the positioning device for measuring the directional diagram of the MIMO antenna has the function of quickly translating the X, Y shaft, can control the device to rotate along the Z shaft (wherein the X, Y shaft is positioned on the horizontal plane, and the Z shaft is in the direction vertical to the horizontal plane), can quickly lift the antenna by the scissor type lifting platform so as to reach the set height, and can drive the MIMO antenna at the top to rotate by the antenna axial rotating mechanism, so that the positioning device can adjust the antenna from all dimensions, and the directional diagram obtained by measurement through the positioning device is higher in precision.
Drawings
Fig. 1 is a schematic view illustrating a first view structure of a positioning apparatus for measuring a MIMO antenna pattern according to the present invention;
FIG. 2 is a schematic diagram of a second view structure of the positioning apparatus for measuring MIMO antenna directional patterns according to the present invention;
fig. 3 is a schematic structural diagram of a supporting unit of the positioning device for measuring MIMO antenna patterns according to the present invention;
FIG. 4 is a schematic view of a first view angle configuration of an X-axis translation adjustment stage and a Y-axis translation adjustment stage of the positioning apparatus for measuring MIMO antenna directional patterns according to the present invention;
FIG. 5 is a schematic diagram of a second view angle configuration of the X-axis translation adjustment stage and the Y-axis translation adjustment stage of the positioning apparatus for measuring MIMO antenna directional patterns according to the present invention;
FIG. 6 is a schematic structural diagram of a scissor lift platform of the positioning apparatus for measuring MIMO antenna patterns according to the present invention;
FIG. 7 is a schematic diagram of a Z-axis rotary stage of the positioning apparatus for measuring MIMO antenna patterns according to the present invention;
FIG. 8 is a cross-sectional view of a Z-axis turntable of the positioning apparatus for measuring MIMO antenna patterns of the present invention;
fig. 9 is a schematic structural diagram of an antenna axial rotation mechanism of the positioning apparatus for measuring a MIMO antenna pattern according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, 2 and 3, a positioning device for measuring MIMO antenna patterns comprises a support unit 1, wherein the support unit 1 is located at the bottom of the whole device, so that the device of the present invention can be horizontally placed on the ground. As shown in fig. 2, the supporting unit 1 of the present invention includes a supporting foot 11, the bottom of the supporting foot 11 includes an adjusting threaded foot 12, the adjusting threaded foot 12 is matched with the thread at the bottom of the supporting foot 11 to adjust the height of the supporting foot 11, and the table top 13 is used for carrying other devices.
As shown in fig. 4 and 5, an X-axis translation adjustment stage 2, the X-axis translation adjustment stage 2 being located on top of the support unit 1; a Y-axis translation adjusting table 3, wherein the Y-axis translation adjusting table 3 is positioned at the top of the X-axis translation adjusting table 2; the X-axis translation adjusting table 2 and the Y-axis translation adjusting table 3 are identical in structure and are perpendicular to each other in the moving direction of a horizontal plane, wherein the X axis and the Y axis are located on the horizontal plane and are perpendicular to each other. The invention uses a motor to control a sliding lead screw to carry out transmission, and realizes bidirectional high-precision rapid translation adjustment along X and Y double axes respectively along a linear bearing guide rail.
The bottom of the X-axis translation adjusting table 2 is fixed on a table top 13 at the top of the supporting unit 1, the X-axis translation adjusting table 2 comprises an X-axis sliding lead screw, one end of the X-axis sliding lead screw is controlled by a shaft control motor 21 to rotate through a rotating shaft 22, the rotating shaft 22 drives a moving member of the X-axis sliding lead screw to move, and the moving member drives a top platform 28 of the X-axis translation adjusting table 2 to move along the X-axis direction; one side of the top platform 28 includes an X-axis translation scale 25, and the scale pointer 24 and scale markings 23 are used to indicate the distance of movement of the X-axis translation adjustment stage 2. Two linear bearing guide rails positioned at two sides are further arranged between the supporting unit 1 and the top platform 28, each linear bearing guide rail comprises an outer slide rail 26, a groove is formed in each outer slide rail 26, an inner slide rail 27 is arranged in each groove, the inner slide rail 27 is integrally rectangular, and two sides of each rectangle are bent inwards; wherein, outer slide rail 26 is fixed in on mesa 13, and interior slide rail 27 is fixed in the bottom of top platform 28, and outer slide rail 26 is parallel with X axle slip lead screw, realizes the steady removal of X axle translation adjusting station 2 like this, and the precision of removal reaches 1mm.
The bottom of the Y-axis translation adjusting table 3 is fixed on the top platform 28, the Y-axis translation adjusting table 3 comprises a Y-axis sliding lead screw, one end of the Y-axis sliding lead screw is controlled by a shaft control motor 31 to rotate through a rotating shaft 32, the rotating shaft 32 drives a moving member of the X-axis sliding lead screw to move, and the moving member drives a top platform 38 of the Y-axis translation adjusting table 3 to move along the Y-axis direction; one side of the top platform 38 includes a Y-axis translational scale 35, and the scale pointer 34 and scale markings 33 are used to indicate the distance of movement of the Y-axis translational adjustment stage 3. The X-axis translation adjusting table 2 and the top platform 38 further comprise two linear bearing guide rails positioned on two sides, each linear bearing guide rail comprises an outer slide rail 36, each outer slide rail 36 is provided with a groove, each groove is internally provided with an inner slide rail 37, each inner slide rail 37 is integrally rectangular, and two sides of each rectangle are bent inwards; wherein, outer slide rail 36 is fixed in on top platform 28, and interior slide rail 37 is fixed in the bottom of top platform 38, and outer slide rail 26 is parallel with Y axle slip lead screw, realizes the stable removal of Y axle translation adjusting station 3 like this, and the precision of removal reaches 1mm.
As shown in fig. 6, a scissor lift platform 4, the scissor lift platform 4 being located on top of the Y-axis translation adjustment stage 3; the scissor lift platform 4 comprises an X-shaped lift mechanism, the centers of two straight rods of the X-shaped lift mechanism are rotatably connected through a pin 47, and the top and bottom of the X-shaped lift mechanism are respectively rotatably connected with a platform 49 of the scissor lift platform and a top platform 38 of the Y-axis translation adjusting platform through a pin 48. The scissor-type lifting platform 4 further comprises a lifting motor 41, a motor body of the lifting motor 41 is fixed on the top platform 38 of the Y-axis translation adjusting table, a rotating shaft of the lifting motor is fixedly connected with a screw rod sleeve 43 through a driving part 42, a screw rod 44 is arranged in the screw rod sleeve 43, one end of the screw rod 44 is positioned in the screw rod sleeve 43, and the other end of the screw rod 44 is fixed on the upper part of the X-type lifting mechanism through a pin shaft 45 and a connecting handle 46; the rotating shaft of the lifting motor 41 drives the screw rod 44 to move when rotating, so that the screw rod 44 drives the X-shaped lifting mechanism to move in the vertical direction. The height adjusting range of the scissor type lifting platform 4 is within +/-25 cm, so that the positioning device is more suitable for MIMO antennas of different types and styles.
As shown in fig. 7 and 8, a Z-axis rotating table 5, the Z-axis rotating table 5 being located on a top platform 49 of the scissor lift platform; the Z-axis rotating platform 5 comprises a Z-axis control motor 51, the Z-axis control motor 51 drives a vertical rotating shaft 52 to rotate, and the top of the vertical rotating shaft 52 is a platform 53 of the Z-axis rotating platform. The rotating shaft 54 of the Z-axis control motor 51 is connected to a planetary reducer 55, the planetary reducer 55 converts the driving force rotating along the horizontal direction into the driving force rotating along the vertical direction, and the planetary reducer 55 drives the vertical rotating shaft 52 to rotate. The scale of turned angle is located the edge of platform 53, simultaneously, still includes levelness scale 56 on the platform 53, and the rotation angle is 45, and the precision reaches 0.1.
As shown in fig. 9, the antenna axial rotation mechanism 6 is located on a platform 53 on top of the Z-axis rotation stage; the antenna axial rotating mechanism 6 comprises an antenna shaft control motor 61, a rotor shaft 62 of the antenna shaft control motor 61 drives a planetary reducer 65 to rotate, and an output shaft 63 of the planetary reducer is fixedly connected with a flange 64 and drives the flange 64 to rotate; the outer interface of the flange 64 is used to secure the MIMO antenna for rotation. Wherein pivoted positions such as pivot 63, ring flange 64 are fixed with the casing through thrust ball bearing, and thrust ball bearing plays the effect of bearing load, and the speed reducer edge includes antenna axis angle scale, and rotation angle is 360, and the precision reaches 0.1.
The X-axis translation adjusting table 2 and the Y-axis translation adjusting table 3 are used for adjusting the horizontal position of the antenna axial rotating mechanism 6, the scissor-type lifting platform 4 is used for adjusting the vertical height of the antenna axial rotating mechanism 6, and the Z-axis rotating table 5 is used for enabling the antenna axial rotating mechanism 6 to axially rotate by taking the vertical direction as an axis; the antenna axial rotating mechanism 6 is used for enabling the MIMO antenna to be positioned in a plane vertical to a horizontal plane to rotate, the central axes of the Z-axis rotating platform 5 and the antenna axial rotating mechanism 6 are ensured to be orthogonal, when the antenna axial rotating mechanism is used, leveling is firstly carried out, and the antenna axial rotating mechanism can load the weight of 10kg of the antenna.
Claims (7)
1. A positioning apparatus for measuring MIMO antenna patterns, characterized by:
the device comprises a supporting unit, wherein the supporting unit is positioned at the bottom of the device and enables the device to be horizontally placed on the ground;
the X-axis translation adjusting table is positioned at the top of the supporting unit;
a Y-axis translation adjusting table located at the top of the X-axis translation adjusting table;
the scissor type lifting platform is positioned at the top of the Y-axis translation adjusting platform;
the Z-axis rotating platform is positioned at the top of the scissor type lifting platform;
the antenna axial rotating mechanism is positioned at the top of the Z-axis rotating table;
the antenna axial rotating mechanism comprises an X-axis translation adjusting platform, a Y-axis translation adjusting platform, a scissor-type lifting platform and a Z-axis rotating platform, wherein the X-axis translation adjusting platform and the Y-axis translation adjusting platform are used for adjusting the horizontal position of the antenna axial rotating mechanism; the antenna axial rotating mechanism is used for enabling the MIMO antenna to be positioned in a plane vertical to a horizontal plane to rotate;
the scissor type lifting platform comprises an X-shaped lifting mechanism, the centers of two straight rods of the X-shaped lifting mechanism are rotatably connected through pin shafts, and the top and the bottom of the X-shaped lifting mechanism are respectively rotatably connected with a platform of the scissor type lifting platform and a top platform of a Y-axis translation adjusting platform through pin shafts;
the scissor-type lifting platform further comprises a lifting motor, a motor body of the lifting motor is fixed on the top platform of the Y-axis translation adjusting platform, a rotating shaft of the lifting motor is fixedly connected with a screw rod sleeve, a screw rod is arranged in the screw rod sleeve, one end of the screw rod is located in the screw rod sleeve, and the other end of the screw rod is fixed on the upper portion of the X-type lifting mechanism through a pin shaft;
the rotating shaft of the lifting motor drives the screw rod to move when rotating, so that the screw rod drives the X-shaped lifting mechanism to move in the vertical direction;
the antenna axial rotating mechanism comprises an antenna shaft control motor, the antenna shaft control motor is used for driving a planetary reducer, and the planetary reducer is used for driving the MIMO antenna to rotate.
2. The positioning apparatus for measuring MIMO antenna patterns of claim 1, wherein:
the X-axis translation adjusting table and the Y-axis translation adjusting table are identical in structure and are vertical to each other in the moving direction of the horizontal plane.
3. The positioning apparatus for measuring MIMO antenna patterns of claim 2, wherein:
the bottom of the X-axis translation adjusting platform is fixed to the top of the supporting unit, the X-axis translation adjusting platform comprises an X-axis sliding lead screw, one end of the X-axis sliding lead screw is controlled to rotate by a shaft control motor, and the X-axis sliding lead screw drives the top platform of the X-axis translation adjusting platform to move along the X-axis direction;
the bottom of the Y-axis translation adjusting table is fixed on a top platform of the X-axis translation adjusting table driven by the sliding lead screw, the Y-axis translation adjusting table comprises a Y-axis sliding lead screw, one end of the Y-axis sliding lead screw is controlled to rotate by the shaft control motor, and the Y-axis sliding lead screw drives the top platform of the Y-axis translation adjusting table to move along the Y-axis direction.
4. The positioning apparatus for measuring MIMO antenna patterns of claim 1, wherein:
the Z-axis rotating platform comprises a Z-axis control motor, the Z-axis control motor drives a vertical rotating shaft to rotate, and the top of the vertical rotating shaft is a platform of the Z-axis rotating platform.
5. Positioning apparatus for measuring MIMO antenna patterns according to any of claims 1 to 4, characterized in that:
the Z-axis rotating platform comprises a horizontal degree scale.
6. Positioning apparatus for measuring MIMO antenna patterns according to any of claims 1 to 4, characterized in that:
the X-axis translation adjusting platform and the Y-axis translation adjusting platform respectively comprise an X-axis translation scale and a Y-axis translation scale.
7. Positioning apparatus for measuring MIMO antenna patterns according to any of claims 1 to 4, characterized in that:
a linear bearing guide rail capable of translating along the X axis is arranged between the X axis translation adjusting table and the supporting unit;
and a linear bearing guide rail capable of translating along the Y axis is arranged between the Y-axis translation adjusting table and the X-axis translation adjusting table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793549.XA CN106353608B (en) | 2016-08-31 | 2016-08-31 | Positioning device for measuring MIMO antenna directional pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793549.XA CN106353608B (en) | 2016-08-31 | 2016-08-31 | Positioning device for measuring MIMO antenna directional pattern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106353608A CN106353608A (en) | 2017-01-25 |
| CN106353608B true CN106353608B (en) | 2023-03-17 |
Family
ID=57857013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610793549.XA Active CN106353608B (en) | 2016-08-31 | 2016-08-31 | Positioning device for measuring MIMO antenna directional pattern |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106353608B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275746A (en) * | 2017-06-12 | 2017-10-20 | 成都希塔科技有限公司 | Log-periodic antenna with concertina type device |
| CN107632209B (en) * | 2017-08-17 | 2020-05-29 | 北京无线电计量测试研究所 | Position and attitude adjusting mechanism and position and attitude adjusting method for antenna test |
| CN107492706A (en) * | 2017-08-23 | 2017-12-19 | 合肥同诺文化科技有限公司 | Antenna rotating base and its antenna |
| CN110244136A (en) * | 2018-03-07 | 2019-09-17 | 刘科宏 | Multi probe sweep test frame |
| CN109613525A (en) * | 2018-10-16 | 2019-04-12 | 上海无线电设备研究所 | The quick full airspace alarm method and system of the one-dimensional MIMO radar of one-dimensional rotation |
| CN109573892A (en) * | 2018-12-06 | 2019-04-05 | 广州高昌机电股份有限公司 | A kind of four-wheel aligner lifting machine side-slip apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770010A (en) * | 2008-12-30 | 2010-07-07 | 中国船舶重工集团公司七五○试验场 | GPS antenna positioning deviation adjusting device |
| JP2011128131A (en) * | 2009-06-22 | 2011-06-30 | Mitsubishi Electric Corp | Antenna position setting device of radiation emi measuring device |
| CN102931469A (en) * | 2012-11-20 | 2013-02-13 | 广州赛宝计量检测中心服务有限公司 | Locating device for standard gain horn antennae |
| CN103155283A (en) * | 2010-06-27 | 2013-06-12 | 西泰尔股份有限公司 | Three-axis pedestal having motion platform and piggy back assemblies |
| CN104897976A (en) * | 2015-05-14 | 2015-09-09 | 中国电子科技集团公司第四十一研究所 | On-chip antenna test device |
-
2016
- 2016-08-31 CN CN201610793549.XA patent/CN106353608B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770010A (en) * | 2008-12-30 | 2010-07-07 | 中国船舶重工集团公司七五○试验场 | GPS antenna positioning deviation adjusting device |
| JP2011128131A (en) * | 2009-06-22 | 2011-06-30 | Mitsubishi Electric Corp | Antenna position setting device of radiation emi measuring device |
| CN103155283A (en) * | 2010-06-27 | 2013-06-12 | 西泰尔股份有限公司 | Three-axis pedestal having motion platform and piggy back assemblies |
| CN102931469A (en) * | 2012-11-20 | 2013-02-13 | 广州赛宝计量检测中心服务有限公司 | Locating device for standard gain horn antennae |
| CN104897976A (en) * | 2015-05-14 | 2015-09-09 | 中国电子科技集团公司第四十一研究所 | On-chip antenna test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106353608A (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106353608B (en) | Positioning device for measuring MIMO antenna directional pattern | |
| CN106737279B (en) | Various dimensions are adjustable, and pincers fill workbench | |
| CN102931469B (en) | Locating device for standard gain horn antennae | |
| CN101726352B (en) | Six-degree-of-freedom (DOF) reset device for balance calibration system | |
| CN106644389A (en) | High precision five-freedom degree position and pose adjusting mechanism used for space environment test | |
| CN105652684A (en) | Novel large-size four-freedom attitude simulation structure | |
| CN111219579A (en) | Universal removal and stable base structure who supports level (l) ing | |
| CN105877771A (en) | Movable computer tomography device | |
| CN103353368A (en) | Torque test platform | |
| CN102102986B (en) | Roundness/cylindricality measurement workbench capable of automatically regulating center and inclination | |
| CN213145848U (en) | Real estate survey and drawing offset frame | |
| CN217515271U (en) | Satellite transfer apparatus | |
| CN203738787U (en) | Mechanical arm with testing heads controlled to accurately move and be positioned in XY plane | |
| CN103624776A (en) | Mechanical arm for precisely motion positioning control of testing head in XY plane | |
| CN103672328A (en) | Lifting device controlling measuring head to move and be positioned on Z axis | |
| CN106908094A (en) | A kind of Height Adjustable measurement apparatus | |
| CN101319876B (en) | Six-shaft test bench | |
| CN206114784U (en) | A positioner for measuring MIMO antenna directivity diagram | |
| CN204211424U (en) | A kind of lifting support | |
| CN210384611U (en) | Bed board angle adjusting device of radiotherapy bed | |
| CN108328333B (en) | Rotary workbench and panel detection device | |
| CN208012539U (en) | A kind of precision rotating body diameter of part automatic measuring instrument | |
| CN205968896U (en) | Manual moving platform of two dimension | |
| CN201548838U (en) | Circular degree/cylindrical degree measuring workbench capable of automatically adjusting center and inclination | |
| CN205466811U (en) | Single crystal silicon rod machinery bonding equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 511300 76 Zhu Cun road west, Zhu Cun street, Zengcheng District, Guangzhou, Guangdong. Applicant after: GUANGZHOU CEPREI CALIBRATION AND TESTING CENTER SERVICE Co.,Ltd. Address before: 510000 Dongguan Zhuang Road, Tianhe District, Guangzhou, Guangdong 110 Applicant before: GUANGZHOU CEPREI CALIBRATION AND TESTING CENTER SERVICE Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |