CN105509782A - Base station antenna ice load test method and test system - Google Patents
Base station antenna ice load test method and test system Download PDFInfo
- Publication number
- CN105509782A CN105509782A CN201510042402.2A CN201510042402A CN105509782A CN 105509782 A CN105509782 A CN 105509782A CN 201510042402 A CN201510042402 A CN 201510042402A CN 105509782 A CN105509782 A CN 105509782A
- Authority
- CN
- China
- Prior art keywords
- base station
- antenna
- liquid storage
- ice
- freezing
- 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.)
- Granted
Links
Abstract
The invention provides a base station antenna ice load test method and test system. The base station antenna ice load test method comprises the steps of freezing to form an ice surface with a thickness of at least 10cm artificially on the surface of a base station antenna; and testing related parameters of the base station antenna according to related standards. In this way, the invention can form the ice surface conforming to the test standards artificially on the base station antenna, thereby facilitating a quick and accurate test of related parameters of the base station antenna.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of antenna for base station ice load method of testing and test macro thereof.
Background technology
According to national communication industry standard YD/T1059-2004(base stations in mobile communication system antenna technology condition) requirement, when the ice load of antenna for base station is tested, the thickness of attached ice will reach 10cm, this is difficult to realize for being located in southern manufacturing enterprise, even if be positioned at the producer in the north, neither any time can self-assembling formation.Therefore effectively carry out this test in order to convenient, what be necessary to adopt other method artificial produces satisfactory ice sheet material in antenna for base station appearance.
Summary of the invention
The present invention provides a kind of antenna for base station ice load method of testing and test macro thereof for solving the problems of the technologies described above, can form by artificial mode the ice face meeting testing standard at antenna for base station, be conducive to rapidly, exactly the correlation parameter of antenna for base station tested.
For solving the problems of the technologies described above, the invention provides a kind of antenna for base station ice load method of testing, comprising the steps: that freezing formation thickness at least reaches the ice face of 10 centimetres to manually on antenna for base station surface; Test according to the correlation parameter of relevant criterion to described antenna for base station.
Further, described antenna for base station surface to manually freezing formation thickness at least reach among the step in ice face of 10 centimetres, comprise: prepare to have water suction retaining performance and the liquid storage parts that can wrap up described antenna for base station, wherein, the compressed thickness of described liquid storage parts is not less than 10 centimetres; A certain amount of water is sprayed to described liquid storage parts uniformity; Described liquid storage parts are utilized to wrap up described antenna for base station; Undertaken freezing to form ice face by certain freezing conditions to the described antenna for base station after parcel.
Further, before the described step evenly spraying a certain amount of water in described liquid storage parts, comprising: the surface area obtaining described antenna for base station; According to formulae discovery actual used water amount, wherein, described formula is: the proportion × K of the thickness × ice of the area × ice of actual used water amount=antenna for base station
1, wherein, K
1=1.3.
Further, described to parcel after described antenna for base station carrying out freezing with among the step forming ice face, described freezing conditions is: reach target temperature-20 DEG C with the speed of reduction per minute 1 DEG C, at temperature stabilization after-20 DEG C, continues freezing at least 4 hours.
Further, among the described step testing according to the correlation parameter of relevant criterion to described antenna for base station, comprising: after freezing end, primary detection or setting are carried out to correlation parameter; Again carried out by described antenna for base station freezing with certain condition, wherein, described certain condition refers to continue at least 4 hours and the constant temperature of-20 DEG C; Sine vibration test is carried out within a certain period of time according to relevant criterion; After vibration test terminates, correlation parameter is detected again or arranges, and to twice detection or arrange result and contrast; Wherein, if described antenna for base station is electrical tilt antenna, described correlation parameter comprises RCU calibration function, lower decline angle, mechanical tilt angle and rule scale; If described antenna is non-electrical tilt antenna, correlation parameter comprises mechanical tilt angle.
Further, described after vibration test terminates, correlation parameter detected again or arranges, and to after twice detection or arranging step that result contrasts, comprising: remove described liquid storage parts from described antenna for base station surface; At room temperature recover certain hour, wherein, described certain hour is not less than 1 hour; Carry out outward appearance detection; Carry out electric performance test.
For solving the problems of the technologies described above, the present invention also provides a kind of test macro for the test of antenna for base station ice load, comprising: freezing equipment, at least reaching the ice face of 10 centimetres at the surperficial freezing formation thickness to manually of antenna for base station; Checkout equipment, for testing according to the correlation parameter of relevant criterion to described antenna for base station.
Further, described freezing equipment comprises liquid storage parts, spray equipment and high-low temperature chamber; Described liquid storage parts, for wrapping up described antenna for base station, it has water suction retaining performance, and, the compressed thickness of described liquid storage parts is not less than 10 centimetres, and wherein, described liquid storage parts comprise the imbibition liquid storage face of adjacent setting and the anti-water surface, described imbibition liquid storage face can be bat, sponge or glass fabric, and the described anti-water surface can be waterproof waterproof cloth; Described spray equipment, for spraying the water frozen equably to described liquid storage parts; Described high-low temperature chamber, carries out freezing to form ice face for the freezing conditions by setting to the described antenna for base station after parcel.
Further, described test macro comprises control terminal, and described control terminal comprises input block, processing unit and control module; Described input block, for obtaining the surface area of described antenna for base station; Described processing unit, for according to formulae discovery actual used water amount, wherein, described formula is: the proportion × K of the thickness × ice of the area × ice of actual used water amount=antenna for base station
1, wherein, K
1=1.3; Described control module, sprays described liquid storage parts for being electrically connected described spray equipment and controlling described spray equipment.
Further, described spray equipment comprises guide rail, is arranged on guide rail and along the reciprocating mobile platform of described guide rail and can be arranged at the nozzle assembly be communicated with on described mobile platform and with water tank or water supply pipe, described nozzle assembly is provided with the flowrate control valve controlling described nozzle assembly ejection discharge; Wherein, described control module is electrically connected described mobile platform and described flowrate control valve respectively, the corresponding control realized described mobile platform, and by controlling described flowrate control valve and then controlling the control that described nozzle assembly sprays discharge.
The antenna for base station ice load method of testing of embodiment of the present invention and test macro: the antenna for base station ice load method of testing of embodiment of the present invention and test macro: the ice face being met testing standard by artificial mode in the freezing formation of antenna for base station, can not limit by region and natural conditions, and can promptly form ice face, be conducive to testing the correlation parameter of antenna for base station quickly and accurately.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of antenna for base station ice load method of testing first embodiment of the present invention.
Fig. 2 is the process flow diagram of antenna for base station ice load method of testing second embodiment of the present invention.
Fig. 3 is the process flow diagram of antenna for base station ice load method of testing the 3rd embodiment of the present invention.
Fig. 4 is the process flow diagram of antenna for base station ice load method of testing the 4th embodiment of the present invention.
Fig. 5 is the structured flowchart of antenna for base station ice load test macro one embodiment of the present invention.
Fig. 6 is the structural representation of liquid storage parts in antenna for base station ice load test macro of the present invention.
Fig. 7 is the structured flowchart of another embodiment of antenna for base station ice load test macro of the present invention.
Embodiment
Below in conjunction with drawings and embodiments, the present invention is described in detail.
Consult Fig. 1, the antenna for base station ice load method of testing of first embodiment of the invention, comprises the steps:
Step S1, on antenna for base station surface, freezing formation thickness at least reaches the ice face of 10 centimetres to manually.Wherein, the minimum requirements of to be the thickness of 10 centimetres be in ice face defined in national communication industry standard YD/T1059-2004.
Composition graphs 2, in step sl, comprising:
Step S11, prepare to have water suction retaining performance and the liquid storage parts that can wrap up described antenna for base station, wherein, the compressed thickness of described liquid storage parts is not less than 10 centimetres.The compressed thickness of these liquid storage parts is not less than 10 centimetres, make freezing by step S14 after liquid storage parts can guarantee to form ice face more than 10 centimetres on the surface at this antenna for base station, ensure to reach the basic condition that this antenna for base station carries out ice load test, more true to nature, accurate to make every effort to follow-up test.Wherein, liquid storage parts can be that one side is provided with the bat of waterproof waterproof cloth, sponge or glass fabric.
Step S12, sprays a certain amount of water to described liquid storage parts uniformity.When spraying water to liquid storage parts, often face down one of liquid storage parts waterproof and lie in ground.Before step S12, also comprise the steps, specifically refer to Fig. 3.
Step S1201, obtains the surface area of described antenna for base station.
Step S1202, according to formulae discovery actual used water amount, wherein, described formula is: the proportion × K1 of the thickness × ice of the area × ice of actual used water amount=antenna for base station, wherein, K1=1.3.During concrete calculating, the thickness of ice needs selection to be not less than 10 centimetres.Certainly, step S1202 also can split into two steps, namely first calculates theoretical water consumption, the proportion of the thickness × ice of the area × ice of theoretical water consumption=antenna for base station; And then calculate actual used water amount, actual used water amount=theoretical water consumption × K1.In this step, need to use COEFFICIENT K 1, be because part water may be lost in spray process, or concentrate on the some or several region of liquid storage parts with water and cause water distribution uneven, thus need to use water more more than theoretical water consumption.In a specific embodiment, actual used water amount can also be calculated by the surface area obtaining liquid storage parts, but both in contrast, adopt the surface area of antenna for base station to be used as calculating actual used water amount more accurate.
Step S13, utilizes described liquid storage parts to wrap up described antenna for base station.Wherein, the them impervious such as adhesive tape these liquid storage parts good can be utilized, the problem not reaching test condition preventing from water loss from affecting refrigerating effect causing.When specifically carrying out parcel operation, as long as wrap the front of antenna for base station, the two ends of antenna for base station can be exposed, one is whether two ends form ice in the face of test result impact and littlely even not affect, two is conveniently to test, and does not namely need the ice face of the one end of removing closed test part in follow-up test again.
Step S14, is undertaken freezing to form ice face to the described antenna for base station after parcel by certain freezing conditions.Specifically, this freezing conditions is: reach target temperature-20 DEG C with the speed of reduction per minute 1 DEG C, at temperature stabilization after-20 DEG C, continue freezing at least 4 hours, be preferably the liquid storage parts of controlled high-low temperature chamber to antenna for base station and parcel antenna for base station and carry out freezing.It should be noted that, when utilizing high-low temperature chamber freezing, can, by the stilt frame such as support this antenna for base station wrapped up by liquid storage parts high, avoid antenna for base station to be directly bonded at the surface of high-low temperature chamber, with prevent freezing after cannot take out this antenna for base station from high-low temperature chamber.
Step S2, tests according to the correlation parameter of relevant criterion to described antenna for base station.Before step 2, if this antenna for base station completes freezing in high-low temperature chamber, need from high-low temperature chamber, to take out this antenna for base station after freezing end.
Refer to Fig. 4, in step s 2, concrete testing procedure comprises:
Step S21, after freezing end, carries out primary detection or setting to correlation parameter.This correlation parameter detecting or arrange can as the benchmark of subsequent step.
Step S22, carries out freezing with certain condition again by described antenna for base station, wherein, described certain condition refers to continue at least 4 hours and the constant temperature of-20 DEG C.This step can consolidate the surface temperature of antenna for base station, maintains ice face thickness substantially constant.
Step S23, carries out sine vibration test according to relevant criterion within a certain period of time.Carrying out sinusoidal vibration test by being installed to by antenna for base station on shaking table in being preferably 10 minutes, affecting test effect to avoid overlong time ablation.
Step S24, after vibration test terminates, again detects correlation parameter or arranges, and to twice detection or arrange result and contrast.
Wherein, if described antenna for base station is electrical tilt antenna, in step S21-step S24, described correlation parameter comprises RCU calibration function, lower decline angle, mechanical tilt angle and rule scale.If described antenna is non-electrical tilt antenna, in step S23-step S24, correlation parameter comprises mechanical tilt angle.Specifically electrical tilt antenna for described antenna for base station, that is:
Step S21 is specially: after freezing end, primary detection RCU calibration function, arranges lower decline angle function, checks scale label value whether with to arrange angle identical.
Step S23 is specially: fix up an aerial wire on shaking table, and measurement mechanical angle of declination, records degree of tilt.The instrument of measurement mechanical angle of declination is bevel protractor.
Step S24 is specially: after vibration test terminates, and again detects RCU calibration function, arranges lower decline angle function, detects mechanical tilt angle, and contrast every testing result.And then help slip-stick artist to improve this antenna for base station of improvement by this comparing result.
Step S25, removes described liquid storage parts from described antenna for base station surface.
Step S26, at room temperature recovers certain hour, and wherein, described certain hour is not less than 1 hour.
Step S27, carries out outward appearance detection.
Step S28, carries out electric performance test.
Consult Fig. 5, the present invention also provides a kind of test macro for the test of antenna for base station ice load, comprising:
Freezing equipment 1, at least reaching the ice face of 10 centimetres at the surperficial freezing formation thickness to manually of antenna for base station.
Checkout equipment 2, for testing according to the correlation parameter of relevant criterion to described antenna for base station.Wherein, checkout equipment 2 comprises network analyzer, intermodulation instrument and bevel protractor etc., is not described specifically herein.
Described freezing equipment 1 comprises liquid storage parts 5, spray equipment 4 and high-low temperature chamber (not shown).Specifically:
Described liquid storage parts 5, for wrapping up described antenna for base station, it has water suction retaining performance, and the compressed thickness of described liquid storage parts 5 is not less than 10 centimetres.Composition graphs 6 is consulted, and wherein, described liquid storage parts 5 comprise imbibition liquid storage face 51 and the anti-water surface 52 of adjacent setting, and this imbibition liquid storage face 51 can be bat, sponge or glass fabric, and this anti-water surface 52 can be waterproof waterproof cloth.
Described spray equipment 4, for spraying the water frozen equably to described liquid storage parts 5.
Described high-low temperature chamber, carries out freezing to form ice face for the freezing conditions by setting to the described antenna for base station after parcel.
Consult Fig. 7, in an embody rule embodiment, described test macro comprises control terminal 3, and described control terminal 3 comprises input block 31, processing unit 32 and control module 33.Wherein:
Described input block 31, for obtaining the surface area of described antenna for base station.
Described processing unit 32, for according to formulae discovery actual used water amount, wherein, described formula is: the proportion × K1 of the thickness × ice of the area × ice of actual used water amount=antenna for base station, wherein, K1=1.3; Described control module 33, sprays described liquid storage parts 5 for being electrically connected described spray equipment 4 and controlling described spray equipment 4.
Further, described spray equipment 4 comprises guide rail (not shown), is arranged on guide rail and along the reciprocating mobile platform of described guide rail 41 and can be arranged at the nozzle assembly (not shown) be communicated with on described mobile platform 41 and with water tank or water supply pipe, described nozzle assembly is provided with the flowrate control valve 42 controlling described nozzle assembly ejection discharge.Wherein, described control module 33 is electrically connected described mobile platform 41 and described flowrate control valve 42 respectively, the corresponding control realized described mobile platform 41, and by controlling described flowrate control valve 42 and then controlling the control that described nozzle assembly sprays discharge.
By arranging control terminal 3 and spray equipment 4, robotization can complete and spray liquid storage parts 5, the convenient ice noodles part formed needed for follow-up test, it is time saving and energy saving, and more accurate.Certainly, above-mentioned embodiment also can be completed by modes such as artificial calculating, artificial sprays, finally to form ice face, equally also can reach comparatively close test condition.
In sum, the antenna for base station ice load method of testing of embodiment of the present invention and test macro: the ice face being met testing standard by artificial mode in the freezing formation of antenna for base station, can not limit by region and natural conditions, and can promptly form ice face, be conducive to testing the correlation parameter of antenna for base station quickly and accurately.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an antenna for base station ice load method of testing, is characterized in that, comprises the steps:
On antenna for base station surface, freezing formation thickness at least reaches the ice face of 10 centimetres to manually;
Test according to the correlation parameter of relevant criterion to described antenna for base station.
2. antenna for base station ice load method of testing according to claim 1, is characterized in that, described antenna for base station surface to manually freezing formation thickness at least reach among the step in ice face of 10 centimetres, comprising:
Prepare to have water suction retaining performance and the liquid storage parts that can wrap up described antenna for base station, wherein, the compressed thickness of described liquid storage parts is not less than 10 centimetres;
A certain amount of water is sprayed to described liquid storage parts uniformity;
Described liquid storage parts are utilized to wrap up described antenna for base station;
Undertaken freezing to form ice face by certain freezing conditions to the described antenna for base station after parcel.
3. antenna for base station ice load method of testing according to claim 2, is characterized in that, before the described step evenly spraying a certain amount of water in described liquid storage parts, comprising:
Obtain the surface area of described antenna for base station;
According to formulae discovery actual used water amount, wherein, described formula is:
Proportion × the K of the thickness × ice of the surface area × ice of actual used water amount=antenna for base station
1, wherein, K
1=1.3.
4. antenna for base station ice load method of testing according to claim 3, it is characterized in that, described to parcel after described antenna for base station carrying out freezing with among the step forming ice face, described freezing conditions is: reach target temperature-20 DEG C with the speed of reduction per minute 1 DEG C, at temperature stabilization after-20 DEG C, continue freezing at least 4 hours.
5. antenna for base station ice load method of testing according to claim 3, is characterized in that, among the described step testing according to the correlation parameter of relevant criterion to described antenna for base station, comprising:
After freezing end, primary detection or setting are carried out to correlation parameter;
Again carried out by described antenna for base station freezing with certain condition, wherein, described certain condition refers to continue at least 4 hours and the constant temperature of-20 DEG C;
Sine vibration test is carried out within a certain period of time according to relevant criterion;
After vibration test terminates, correlation parameter is detected again or arranges, and to twice detection or arrange result and contrast;
Wherein, if described antenna for base station is electrical tilt antenna, described correlation parameter comprises RCU calibration function, lower decline angle, mechanical tilt angle and rule scale; If described antenna is non-electrical tilt antenna, correlation parameter comprises mechanical tilt angle.
6. antenna for base station ice load method of testing according to claim 5, is characterized in that, described after vibration test terminates, and again detects or arrange correlation parameter, and to after twice detection or arranging step that result contrasts, comprising:
Described liquid storage parts are removed from described antenna for base station surface;
At room temperature recover certain hour, wherein, described certain hour is not less than 1 hour;
Carry out outward appearance detection;
Carry out electric performance test.
7. a test macro for antenna for base station ice load test, is characterized in that, comprising:
Freezing equipment, at least reaching the ice face of 10 centimetres at the surperficial freezing formation thickness to manually of antenna for base station;
Checkout equipment, for testing according to the correlation parameter of relevant criterion to described antenna for base station.
8. test macro according to claim 7, is characterized in that:
Described freezing equipment comprises liquid storage parts, spray equipment and high-low temperature chamber;
Described liquid storage parts, for wrapping up described antenna for base station, it has water suction retaining performance, and, the compressed thickness of described liquid storage parts is not less than 10 centimetres, and wherein, described liquid storage parts comprise the imbibition liquid storage face of adjacent setting and the anti-water surface, described imbibition liquid storage face can be bat, sponge or glass fabric, and the described anti-water surface can be waterproof waterproof cloth;
Described spray equipment, for spraying the water frozen equably to described liquid storage parts;
Described high-low temperature chamber, carries out freezing to form ice face for the freezing conditions by setting to the described antenna for base station after parcel.
9. test macro according to claim 8, is characterized in that:
Described test macro comprises control terminal, and described control terminal comprises input block, processing unit and control module;
Described input block, for obtaining the surface area of described antenna for base station;
Described processing unit, for according to formulae discovery actual used water amount, wherein, described formula is: the proportion × K of the thickness × ice of the area × ice of actual used water amount=antenna for base station
1, wherein, K
1=1.3;
Described control module, sprays described liquid storage parts for being electrically connected described spray equipment and controlling described spray equipment.
10. test macro according to claim 9, is characterized in that:
Described spray equipment comprises guide rail, is arranged on guide rail and along the reciprocating mobile platform of described guide rail and can be arranged at the nozzle assembly be communicated with on described mobile platform and with water tank or water supply pipe, described nozzle assembly is provided with the flowrate control valve controlling described nozzle assembly ejection discharge;
Wherein, described control module is electrically connected described mobile platform and described flowrate control valve respectively, the corresponding control realized described mobile platform, and by controlling described flowrate control valve and then controlling the control that described nozzle assembly sprays discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042402.2A CN105509782B (en) | 2015-01-27 | 2015-01-27 | Antenna for base station ice load test method and its test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042402.2A CN105509782B (en) | 2015-01-27 | 2015-01-27 | Antenna for base station ice load test method and its test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105509782A true CN105509782A (en) | 2016-04-20 |
| CN105509782B CN105509782B (en) | 2018-07-13 |
Family
ID=55717935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510042402.2A Active CN105509782B (en) | 2015-01-27 | 2015-01-27 | Antenna for base station ice load test method and its test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105509782B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340110A (en) * | 2017-06-26 | 2017-11-10 | 天津航天瑞莱科技有限公司 | A kind of vibration integrated pilot system of accumulated ice sleet |
| CN109490352A (en) * | 2018-12-28 | 2019-03-19 | 中山大学 | Multifactor low temperature sleet freezing environment simulated testing system |
| CN117572099A (en) * | 2024-01-17 | 2024-02-20 | 吉太航空科技(苏州)有限公司 | Airborne antenna icing test device and airborne antenna icing test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005891A (en) * | 1996-08-13 | 1999-12-21 | Chadwick; Raymond B. | System for testing signal transmission/reception apparatus |
| CN101358863A (en) * | 2008-08-21 | 2009-02-04 | 华中电网有限公司 | Low-temperature ice-coating test method for on-line monitoring device for transmission line |
| CN201569450U (en) * | 2009-10-28 | 2010-09-01 | 西北电网有限公司 | Suspension device for icing simulation verification of transmission conductor |
| CN202502188U (en) * | 2012-03-23 | 2012-10-24 | 上海市电力公司 | Iced insulator test device |
| CN103752355A (en) * | 2014-01-28 | 2014-04-30 | 国家电网公司 | Ice coating test climate box |
-
2015
- 2015-01-27 CN CN201510042402.2A patent/CN105509782B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005891A (en) * | 1996-08-13 | 1999-12-21 | Chadwick; Raymond B. | System for testing signal transmission/reception apparatus |
| CN101358863A (en) * | 2008-08-21 | 2009-02-04 | 华中电网有限公司 | Low-temperature ice-coating test method for on-line monitoring device for transmission line |
| CN201569450U (en) * | 2009-10-28 | 2010-09-01 | 西北电网有限公司 | Suspension device for icing simulation verification of transmission conductor |
| CN202502188U (en) * | 2012-03-23 | 2012-10-24 | 上海市电力公司 | Iced insulator test device |
| CN103752355A (en) * | 2014-01-28 | 2014-04-30 | 国家电网公司 | Ice coating test climate box |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国信息产业部: ""移动通信系统基站天线技术条件"", 《万方中国标准全文数据库》 * |
| 安少赓: ""移动通信中的天线标准及测试"", 《电信工程技术与标准化》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340110A (en) * | 2017-06-26 | 2017-11-10 | 天津航天瑞莱科技有限公司 | A kind of vibration integrated pilot system of accumulated ice sleet |
| CN109490352A (en) * | 2018-12-28 | 2019-03-19 | 中山大学 | Multifactor low temperature sleet freezing environment simulated testing system |
| CN117572099A (en) * | 2024-01-17 | 2024-02-20 | 吉太航空科技(苏州)有限公司 | Airborne antenna icing test device and airborne antenna icing test method |
| CN117572099B (en) * | 2024-01-17 | 2024-03-29 | 吉太航空科技(苏州)有限公司 | Airborne antenna icing test device and airborne antenna icing test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105509782B (en) | 2018-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105509782A (en) | Base station antenna ice load test method and test system | |
| CN205670001U (en) | Building DEFORMATION MONITORING SYSTEM protected in a kind of literary composition based on big-dipper satellite location | |
| CN102594961A (en) | Test system of mobile phone antenna | |
| CN103885026A (en) | Electric energy meter calibrating method | |
| MX2016007422A (en) | Pre-assembled cell site sector. | |
| CN208554665U (en) | A kind of spray equipment of anti-fingerprint plated film | |
| CN103298045B (en) | A kind of method and apparatus controlling cell reselection | |
| CN107884310A (en) | Material outgassing rate measurement apparatus based on the conversion of double test cabinet gas circuits | |
| CN107779846A (en) | A kind of method of adjustment and system of the process gas flow of PECVD device | |
| CN201732128U (en) | Equipment for testing glass substrate | |
| CN107037790A (en) | A kind of concentrated agricultural monitoring system | |
| US20170026930A1 (en) | Localization apparatus and localization method | |
| CN107462779A (en) | Phase of cable error measuring means and its method of testing between microwave imaging satellite plate | |
| CN106443828A (en) | An apparatus and method for measuring a microwave radiometer back lobe | |
| CN206850779U (en) | A kind of 5G multiple antennas antenna for mobile phone test device | |
| CN106026971B (en) | A kind of accurate program controlled step attenuator frequency response bearing calibration and system | |
| CN210090299U (en) | Unmanned aerial vehicle automatic earth observation system of satellite optical load radiation calibration system | |
| CN104092460B (en) | Calibration control method and device for oscillator and electronic device | |
| CN208035688U (en) | A kind of coding component and solar battery chip are integrally interconnected equipment | |
| CN207557138U (en) | A kind of ceramic radome crack on-line checking machine | |
| CN208383288U (en) | The visual vibration measuring device of both ends support solar wing | |
| CN108973100A (en) | A kind of pcb board film sticking equipment | |
| CN206692715U (en) | A kind of calibrating installation of quartz oscillator vacuum sputtering coating mask plate | |
| CN206281878U (en) | Shorten the test platform of Outdoor Current Transformer attribute testing time | |
| CN208704753U (en) | A kind of simple mobile phone RTK centering rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |