CN105301377A - Method, apparatus and system for measuring RF line loss - Google Patents
Method, apparatus and system for measuring RF line loss Download PDFInfo
- Publication number
- CN105301377A CN105301377A CN201410275379.7A CN201410275379A CN105301377A CN 105301377 A CN105301377 A CN 105301377A CN 201410275379 A CN201410275379 A CN 201410275379A CN 105301377 A CN105301377 A CN 105301377A
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- frequency line
- line loss
- power signal
- measured
- 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.)
- Pending
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The present invention provides a method, apparatus and system for measuring RF line loss. The method includes the steps as follows: controlling a measuring instrument to emit a first power signal; controlling a power measuring apparatus to acquire a second power signal outputted by a RF line to be measured after the RF line receives the first power signal; analyzing and calculating the first power signal and the second power signal so as to obtain the line loss of the RF line to be measured. According to the scheme provided by the invention, the power signal of the input RF line and the power signal of the output RF line are directly analyzed and calculated so that the line loss is acquired without experience depending, and the acquired line loss is accurate. A gold machine is needless so that the measuring system is simplified, the cost is reduced, the better human-computer interface is provided, the operation is simple, the user experience is improved, and the requirement for acclimatizing various products is met.
Description
Technical field
The present invention relates to communication technical field, particularly relate to method, the Apparatus and system of a kind of testing radio frequency line loss consumption.
Background technology
At present, its line loss value of the radio frequency line of transmitting radio frequency signal relies on complicated test macro in traditional test, and cost is high, need the operating personnel of specialty, man-machine interface is unfriendly, cannot adapt to multiple product, and the line loss value of exception directly causes mobile terminal quality problems.
And existing two kinds of conventional solutions: the first, radio frequency line carries out line loss compensation based on experience value, cannot adapt to multiple product, and the inaccurate of line loss value brings serious quality problems.The second, uses golden machine as a reference, and test macro is complicated, and cost is high, and need professional to operate, man-machine interface is unfriendly, cannot adapt to multiple product.
Summary of the invention
The technical problem to be solved in the present invention is to provide method, the Apparatus and system of a kind of testing radio frequency line loss consumption, and the method solving testing radio frequency line loss consumption in prior art relies on complicated test macro, complicated operation, cost is high, man-machine interface is unfriendly, the line loss value that obtains is inaccurate and then bring serious quality problems, cannot adapt to the problem of various product demand.
In order to solve the problems of the technologies described above, a kind of method that the embodiment of the present invention provides testing radio frequency line loss to consume, comprising:
Measuring equipment launches the first power signal;
Control power test equipment and obtain the second power signal exported after radio frequency line to be measured receives described first power signal;
Described first power signal and described second power signal are carried out analytical Calculation, obtains the line loss value of described radio frequency line to be measured.
The method of above-mentioned testing radio frequency line loss consumption, wherein, described method also comprises:
The line loss value of described radio frequency line to be measured is shown.
The method of above-mentioned testing radio frequency line loss consumption, wherein, described method also comprises:
Line loss report is generated according to the line loss value of the radio frequency line described to be measured obtained;
The described line loss report generated is recorded and the specified path uploaded onto the server.
The method of above-mentioned testing radio frequency line loss consumption, wherein, the step that described control power test equipment obtains the second power signal exported after radio frequency line to be measured receives described first power signal is specially:
Control power test equipment and obtain the second power signal that export after radio frequency line to be measured receives described first power signal, that send via the switching circuit board be connected with described radio frequency line to be measured.
The method of above-mentioned testing radio frequency line loss consumption, wherein, the step that described measuring equipment launches the first power signal is specially:
In response to the button actions in user interface, launch the first power signal by surveying instrument described in instrument communication line traffic control.
Present invention also offers the device of a kind of testing radio frequency line loss consumption, comprising:
First control module, launches the first power signal for measuring equipment;
Second control module, obtains for controlling power test equipment the second power signal exported after radio frequency line to be measured receives described first power signal;
Analytical Calculation module, for described first power signal and described second power signal are carried out analytical Calculation, obtains the line loss value of described radio frequency line to be measured.
The device of above-mentioned testing radio frequency line loss consumption, wherein, described device also comprises:
Display module, for showing the line loss value of described radio frequency line to be measured.
The device of above-mentioned testing radio frequency line loss consumption, wherein, described device also comprises:
Generation module, for generating line loss report according to the line loss value of the radio frequency line described to be measured obtained;
Transmission module on record, for recording the described line loss report generated and the specified path uploaded onto the server.
The device of above-mentioned testing radio frequency line loss consumption, wherein, described second control module specifically for:
Control power test equipment and obtain the second power signal that export after radio frequency line to be measured receives described first power signal, that send via the switching circuit board be connected with described radio frequency line to be measured.
The device of above-mentioned testing radio frequency line loss consumption, wherein, described first control module specifically for:
In response to the button actions in user interface, launch the first power signal by surveying instrument described in instrument communication line traffic control.
Present invention also offers the system of a kind of testing radio frequency line loss consumption, comprising: surveying instrument, switching circuit board and power test equipment, is characterized in that, also comprise the device of above-mentioned testing radio frequency line loss consumption;
Wherein, the device of described testing radio frequency line loss consumption is connected with described testing tool by instrument communication line, described surveying instrument is connected with described switching circuit board by radio frequency line to be measured, described switching circuit board is by screwed union and described power test equipment connection, and described power test equipment is connected with the device that described testing radio frequency line loss consumes by PC connection.
The beneficial effect of technique scheme of the present invention is as follows:
In such scheme, the method for described testing radio frequency line loss consumption obtains line loss value by directly the power signal of input radio frequency line being carried out analytical Calculation with the power signal exporting radio frequency line, and do not rely on experience, the line loss value obtained is accurate; Do not need golden machine, simplify test macro, reduce cost, there is good man-machine interface, simple to operate, the demand that adds Consumer's Experience, adapt to various product.
Accompanying drawing explanation
Fig. 1 is the method step schematic diagram of the testing radio frequency line loss consumption of the embodiment of the present invention;
Fig. 2 is the apparatus structure schematic diagram of the testing radio frequency line loss consumption of the embodiment of the present invention;
Fig. 3 is the system architecture schematic diagram of the testing radio frequency line loss consumption of the embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The method that the present invention is directed to the consumption of testing radio frequency line loss in existing technology relies on complicated test macro, complicated operation, cost is high, man-machine interface is unfriendly, the line loss value that obtains is inaccurate and then bring serious quality problems, cannot adapt to the problem of various product demand, a kind of method that testing radio frequency line loss consumes is provided, as shown in Figure 1, comprising:
Step 11: measuring equipment launches the first power signal;
Step 12: control power test equipment and obtain the second power signal exported after radio frequency line to be measured receives described first power signal;
Step 13: described first power signal and described second power signal are carried out analytical Calculation, obtains the line loss value of described radio frequency line to be measured.
Wherein, analytical Calculation is a series of mathematic interpolation.
The method of the described testing radio frequency line loss consumption that the embodiment of the present invention provides obtains line loss value by directly the power signal of input radio frequency line being carried out analytical Calculation with the power signal exporting radio frequency line, and do not rely on experience, the line loss value obtained is accurate; Do not need golden machine, simplify test macro, reduce cost, there is good man-machine interface, simple to operate, the demand that adds Consumer's Experience, adapt to various product.
Conveniently user obtains line loss value intuitively, and the method for the described testing radio frequency line loss consumption that the embodiment of the present invention provides also comprises: the line loss value of described radio frequency line to be measured shown.
Efficient and convenient in order to make user use, do not need the personnel of specialty just can operate acquisition result, the method for the described testing radio frequency line loss consumption that the embodiment of the present invention provides also comprises: generate line loss report according to the line loss value of the radio frequency line described to be measured obtained; The described line loss report generated is recorded and the specified path uploaded onto the server.This report record can directly be called by other tool software by the interface of specification.
Further, the step that described control power test equipment obtains the second power signal exported after radio frequency line to be measured receives described first power signal is specially: control power test equipment and obtain the second power signal that export after radio frequency line to be measured receives described first power signal, that send via the switching circuit board be connected with described radio frequency line to be measured.
Wherein, the step that described measuring equipment launches the first power signal is specially: in response to the button actions in user interface, launches the first power signal by surveying instrument described in instrument communication line traffic control.
In order to solve the problems of the technologies described above, the embodiment of the present invention additionally provides the device of a kind of testing radio frequency line loss consumption, as shown in Figure 2, comprising:
First control module, launches the first power signal for measuring equipment;
Second control module, obtains for controlling power test equipment the second power signal exported after radio frequency line to be measured receives described first power signal;
Analytical Calculation module, for described first power signal and described second power signal are carried out analytical Calculation, obtains the line loss value of described radio frequency line to be measured.
The power signal of input radio frequency line is directly carried out analytical Calculation with the power signal exporting radio frequency line by the first control module, the second control module and computing module and obtains line loss value by the device of the described testing radio frequency line loss consumption that the embodiment of the present invention provides, do not rely on experience, the line loss value obtained is accurate; Do not need golden machine, simplify test macro, reduce cost, there is good man-machine interface, simple to operate, the demand that adds Consumer's Experience, adapt to various product.
Conveniently user obtains line loss value intuitively, and the device of the described testing radio frequency line loss consumption that the embodiment of the present invention provides also comprises: display module, for the line loss value of described radio frequency line to be measured being shown.
Efficient and convenient in order to make user use, do not need the personnel of specialty just can operate acquisition result, the device of the described testing radio frequency line loss consumption that the embodiment of the present invention provides also comprises: generation module, for generating line loss report according to the line loss value of the radio frequency line described to be measured obtained; Transmission module on record, for recording the described line loss report generated and the specified path uploaded onto the server.This report record can directly be called by other tool software by the interface of specification.
Further, described second control module specifically for: control power test equipment and obtain the second power signal that export after radio frequency line to be measured receives described first power signal, that send via the switching circuit board be connected with described radio frequency line to be measured.
Wherein, described first control module specifically for: in response to the button actions in user interface, launch the first power signal by surveying instrument described in instrument communication line traffic control.
In order to solve the problems of the technologies described above, the embodiment of the present invention additionally provides the system of a kind of testing radio frequency line loss consumption, as shown in Figure 3, comprising: surveying instrument, switching circuit board and power test equipment, also comprises the device of above-mentioned testing radio frequency line loss consumption;
Wherein, the device of described testing radio frequency line loss consumption is connected with described testing tool by instrument communication line, described surveying instrument is connected with described switching circuit board by radio frequency line to be measured, described switching circuit board is by screwed union and described power test equipment connection, and described power test equipment is connected with the device that described testing radio frequency line loss consumes by PC connection.
The power signal of input radio frequency line is directly carried out analytical Calculation with the power signal exporting radio frequency line by the device that surveying instrument, switching circuit board, power test equipment and testing radio frequency line loss consume and obtains line loss value by the system of the described testing radio frequency line loss consumption that the embodiment of the present invention provides, do not rely on experience, the line loss value obtained is accurate; Do not need golden machine, simplify test macro, reduce cost, there is good man-machine interface, simple to operate, the demand that adds Consumer's Experience, adapt to various product.
Wherein, the device of testing radio frequency line loss consumption is that PC system (can be the intelligent terminals such as PC, Pad) is by instrument communication line traffic control surveying instrument; Power test equipment is controlled again by PC connection;
Radio frequency line one end to be measured connects surveying instrument, and one end connects power test equipment by switching circuit board, forms test loop.This system building easily realizes, and cost is not high, can adapt to the measurement demand of various product.
In PC system, intelligent test RF RF line loss software has individual UI interface, user can trigger the intelligent algorithm of testing software by a button, intelligent algorithm is transmitted by measuring equipment intelligence, by PC connection readout power device signal, radio frequency line line loss value is calculated according to user-defined method by the method for multi-point average or other, and according to the physical characteristics of RF line loss, abandon irrational measurement result, as loss be negative value, loss exceedes the situations such as some upper limit.The line loss report record also upload server specified path that intelligent test software will generate.This report record can directly be called by other tool software by the interface of specification.User uses efficient and convenient, does not need the personnel of specialty just can operate, obtains result.
Below the system of the described testing radio frequency line loss consumption that the embodiment of the present invention provides is illustrated.
The intelligent test RF RF line loss software be arranged in PC system launches high-power signal by instrument communication line traffic control intensive measurement instrument (preventing from stealing software), and signal output part is at surveying instrument end; Intelligent test RF RF line loss software controls power test equipment by PC connection, and signal-obtaining end is at RF radio frequency line port to be measured; The signal exported and the signal of input are through a series of analytical Calculation, and difference is the line loss value of RF radio frequency line to be measured.
Above-described is the preferred embodiment of the present invention; should be understood that the ordinary person for the art; not departing under principle prerequisite of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. a method for testing radio frequency line loss consumption, is characterized in that, comprising:
Measuring equipment launches the first power signal;
Control power test equipment and obtain the second power signal exported after radio frequency line to be measured receives described first power signal;
Described first power signal and described second power signal are carried out analytical Calculation, obtains the line loss value of described radio frequency line to be measured.
2. the method for testing radio frequency line loss consumption as claimed in claim 1, it is characterized in that, described method also comprises:
The line loss value of described radio frequency line to be measured is shown.
3. the method for testing radio frequency line loss consumption as claimed in claim 1, it is characterized in that, described method also comprises:
Line loss report is generated according to the line loss value of the radio frequency line described to be measured obtained;
The described line loss report generated is recorded and the specified path uploaded onto the server.
4. the method for testing radio frequency line loss consumption as claimed in claim 1, it is characterized in that, the step that described control power test equipment obtains the second power signal exported after radio frequency line to be measured receives described first power signal is specially:
Control power test equipment and obtain the second power signal that export after radio frequency line to be measured receives described first power signal, that send via the switching circuit board be connected with described radio frequency line to be measured.
5. the method for testing radio frequency line loss consumption as claimed in claim 1, it is characterized in that, the step that described measuring equipment launches the first power signal is specially:
In response to the button actions in user interface, launch the first power signal by surveying instrument described in instrument communication line traffic control.
6. a device for testing radio frequency line loss consumption, is characterized in that, comprising:
First control module, launches the first power signal for measuring equipment;
Second control module, obtains for controlling power test equipment the second power signal exported after radio frequency line to be measured receives described first power signal;
Analytical Calculation module, for described first power signal and described second power signal are carried out analytical Calculation, obtains the line loss value of described radio frequency line to be measured.
7. the device of testing radio frequency line loss consumption as claimed in claim 6, it is characterized in that, described device also comprises:
Display module, for showing the line loss value of described radio frequency line to be measured.
8. the device of testing radio frequency line loss consumption as claimed in claim 6, it is characterized in that, described device also comprises:
Generation module, for generating line loss report according to the line loss value of the radio frequency line described to be measured obtained;
Transmission module on record, for recording the described line loss report generated and the specified path uploaded onto the server.
9. the device of testing radio frequency line loss consumption as claimed in claim 6, is characterized in that, described second control module specifically for:
Control power test equipment and obtain the second power signal that export after radio frequency line to be measured receives described first power signal, that send via the switching circuit board be connected with described radio frequency line to be measured.
10. the device of testing radio frequency line loss consumption as claimed in claim 6, is characterized in that, described first control module specifically for:
In response to the button actions in user interface, launch the first power signal by surveying instrument described in instrument communication line traffic control.
The system of 11. 1 kinds of testing radio frequency line loss consumptions, comprising: surveying instrument, switching circuit board and power test equipment, is characterized in that, also comprises the device of the testing radio frequency line loss consumption as described in any one of claim 6 to 10;
Wherein, the device of described testing radio frequency line loss consumption is connected with described testing tool by instrument communication line, described surveying instrument is connected with described switching circuit board by radio frequency line to be measured, described switching circuit board is by screwed union and described power test equipment connection, and described power test equipment is connected with the device that described testing radio frequency line loss consumes by PC connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275379.7A CN105301377A (en) | 2014-06-19 | 2014-06-19 | Method, apparatus and system for measuring RF line loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275379.7A CN105301377A (en) | 2014-06-19 | 2014-06-19 | Method, apparatus and system for measuring RF line loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105301377A true CN105301377A (en) | 2016-02-03 |
Family
ID=55198875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410275379.7A Pending CN105301377A (en) | 2014-06-19 | 2014-06-19 | Method, apparatus and system for measuring RF line loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105301377A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933034A (en) * | 2016-04-22 | 2016-09-07 | 广东欧珀移动通信有限公司 | Line loss measurement method and device |
| CN106990376A (en) * | 2017-04-01 | 2017-07-28 | 捷开通讯(深圳)有限公司 | A kind of test device and method of testing of scramble testing system line loss |
| CN107202924A (en) * | 2017-05-23 | 2017-09-26 | 深圳天珑无线科技有限公司 | A kind of terminal test method, equipment and system |
| CN107561471A (en) * | 2017-09-27 | 2018-01-09 | 上海旻艾信息科技有限公司 | A kind of semiconductor test machine calibrating installation |
| CN109150242A (en) * | 2018-08-24 | 2019-01-04 | 北京小米移动软件有限公司 | Test the method and device of line loss |
| CN110780119A (en) * | 2019-10-15 | 2020-02-11 | 晶晨半导体（深圳）有限公司 | Method for measuring PCB (printed Circuit Board) wiring impedance by using RF (radio frequency) test equipment |
| CN111225060A (en) * | 2020-01-10 | 2020-06-02 | 杭州涂鸦信息技术有限公司 | Radio frequency-based index safety testing method and system |
| CN111257672A (en) * | 2020-02-11 | 2020-06-09 | 深圳市广和通无线股份有限公司 | Line loss point inspection method and device, computer equipment and storage medium |
| CN111327372A (en) * | 2020-03-11 | 2020-06-23 | 杭州涂鸦信息技术有限公司 | Radio frequency test method, system and device |
| CN113376560A (en) * | 2021-06-02 | 2021-09-10 | 中电科思仪科技股份有限公司 | Cable automatic calibration and compensation method of comprehensive detection equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3276888B2 (en) * | 1997-05-30 | 2002-04-22 | 株式会社日立国際電気 | Equipment electrical physical quantity test equipment |
| CN102386982A (en) * | 2011-10-14 | 2012-03-21 | 中兴通讯股份有限公司 | Metering device and method for radio frequency testing system errors in mobile terminal production |
| CN103414526A (en) * | 2013-07-24 | 2013-11-27 | 福建星网锐捷通讯股份有限公司 | Test system and test method of radio frequency identification index |
| CN103560841A (en) * | 2013-10-28 | 2014-02-05 | 深圳市共进电子股份有限公司 | Radio frequency circuit testing system and method |
| CN104215828A (en) * | 2013-11-08 | 2014-12-17 | 上海联影医疗科技有限公司 | Radio frequency cable detection loop, magnetic-resonance radio frequency safety monitoring system and control method thereof |
-
2014
- 2014-06-19 CN CN201410275379.7A patent/CN105301377A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3276888B2 (en) * | 1997-05-30 | 2002-04-22 | 株式会社日立国際電気 | Equipment electrical physical quantity test equipment |
| CN102386982A (en) * | 2011-10-14 | 2012-03-21 | 中兴通讯股份有限公司 | Metering device and method for radio frequency testing system errors in mobile terminal production |
| CN103414526A (en) * | 2013-07-24 | 2013-11-27 | 福建星网锐捷通讯股份有限公司 | Test system and test method of radio frequency identification index |
| CN103560841A (en) * | 2013-10-28 | 2014-02-05 | 深圳市共进电子股份有限公司 | Radio frequency circuit testing system and method |
| CN104215828A (en) * | 2013-11-08 | 2014-12-17 | 上海联影医疗科技有限公司 | Radio frequency cable detection loop, magnetic-resonance radio frequency safety monitoring system and control method thereof |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933034B (en) * | 2016-04-22 | 2019-02-01 | Oppo广东移动通信有限公司 | A kind of line loss measurement method and device |
| CN105933034A (en) * | 2016-04-22 | 2016-09-07 | 广东欧珀移动通信有限公司 | Line loss measurement method and device |
| CN106990376A (en) * | 2017-04-01 | 2017-07-28 | 捷开通讯(深圳)有限公司 | A kind of test device and method of testing of scramble testing system line loss |
| CN107202924A (en) * | 2017-05-23 | 2017-09-26 | 深圳天珑无线科技有限公司 | A kind of terminal test method, equipment and system |
| CN107561471A (en) * | 2017-09-27 | 2018-01-09 | 上海旻艾信息科技有限公司 | A kind of semiconductor test machine calibrating installation |
| CN109150242B (en) * | 2018-08-24 | 2021-09-07 | 北京小米移动软件有限公司 | Method and device for testing line loss |
| CN109150242A (en) * | 2018-08-24 | 2019-01-04 | 北京小米移动软件有限公司 | Test the method and device of line loss |
| CN110780119A (en) * | 2019-10-15 | 2020-02-11 | 晶晨半导体（深圳）有限公司 | Method for measuring PCB (printed Circuit Board) wiring impedance by using RF (radio frequency) test equipment |
| CN111225060A (en) * | 2020-01-10 | 2020-06-02 | 杭州涂鸦信息技术有限公司 | Radio frequency-based index safety testing method and system |
| CN111257672A (en) * | 2020-02-11 | 2020-06-09 | 深圳市广和通无线股份有限公司 | Line loss point inspection method and device, computer equipment and storage medium |
| CN111327372A (en) * | 2020-03-11 | 2020-06-23 | 杭州涂鸦信息技术有限公司 | Radio frequency test method, system and device |
| CN111327372B (en) * | 2020-03-11 | 2022-07-08 | 杭州涂鸦信息技术有限公司 | Radio frequency test method, system and device |
| CN113376560A (en) * | 2021-06-02 | 2021-09-10 | 中电科思仪科技股份有限公司 | Cable automatic calibration and compensation method of comprehensive detection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105301377A (en) | Method, apparatus and system for measuring RF line loss | |
| CN104202099A (en) | System for calibrating 3G network card and calibration method thereof | |
| CN106603338B (en) | Intelligent terminal response time testing method, device and system | |
| CN203773022U (en) | Universal optical coupler chip testing apparatus | |
| CN204594593U (en) | Multi-channel temperature measurement system | |
| CN105629072A (en) | System for measuring multiplex resistance | |
| CN103364083B (en) | Equal precision frequency measuring-based optical signal detection device and method | |
| CN102621366B (en) | A kind of oscillograph | |
| CN105791812A (en) | Digital television transmitter broadband detection implementation system and method | |
| CN204205231U (en) | Signal switching apparatus | |
| CN205091064U (en) | A temperature measuring system for last chip of working of communication module | |
| CN201909805U (en) | Digital universal meter | |
| CN108828442A (en) | Time-delay relay detection device | |
| CN210181590U (en) | MCU parameter testing system | |
| CN204536440U (en) | A kind of wireless frequency spectrum through type digital radio frequency power meter | |
| CN202948052U (en) | Digital voltammeter based on measuring chip | |
| CN106525262A (en) | Diode temperature transmitter and transmission method thereof | |
| CN203024888U (en) | Temperature monitoring and transmitting device | |
| CN103197179A (en) | Power quality detecting terminal used for power grids | |
| CN206294183U (en) | A kind of ultrashort wave radio set internal field analyser | |
| CN203658457U (en) | Terminal-type digital radio-frequency power meter | |
| CN207081779U (en) | A kind of multifunctional intellectual electric instrument with Autonomous test | |
| CN203164328U (en) | Electric energy quality analyzing hardware platform | |
| CN204633947U (en) | A kind of digital TV transmitter broadband demodulation implement device | |
| CN211577265U (en) | Photovoltaic array power analyzer and power analysis system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
|
| RJ01 | Rejection of invention patent application after publication |