CN206805879U - A kind of visual interactive electromagnetic wave experiment teaching system - Google Patents
A kind of visual interactive electromagnetic wave experiment teaching system Download PDFInfo
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- CN206805879U CN206805879U CN201621334006.3U CN201621334006U CN206805879U CN 206805879 U CN206805879 U CN 206805879U CN 201621334006 U CN201621334006 U CN 201621334006U CN 206805879 U CN206805879 U CN 206805879U
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Abstract
The utility model discloses a kind of visual interactive electromagnetic wave experiment teaching system, is made up of experiment porch subsystem, microwave transmitting and receiving subsystem, host computer/slave computer operational control subsystem；The experiment porch subsystem is used for the change for collecting electromagnetic wave；Microwave transmitting and receiving subsystem, which sends electromagnetic wave and collects electromagnetic wave, to be changed and is passed to host computer/slave computer operational control subsystem；Host computer/slave computer operational control subsystem, which is used for the electromagnetic wave that processing receives, to be changed and forms image, is additionally operable to control microwave transmitting and receiving subsystem to send electromagnetic wave.It is of the present utility model effectively alleviate electromagnetic wave in electromagnetic wave teaching do not see, can not touch caused by theory be difficult to digest, theory is difficult to many difficulties that intergrate with practice；By way of electromagnetic wave is visual and experimentation is interactive, sustainable experimental design class shape is extensive, and wide variety, the form of expression is lively, the independence and consciousness of study can be effectively excited, beneficial to knowledge learning and creative ability training.
Description
Technical field
Teaching and experiment equipment field is the utility model is related to, more particularly to a kind of visual interactive electromagnetic wave experimental teaching system
System.
Background technology
" Electromagnetic Fields ＆ Magnetic Waves " are institution of higher education's electronic information class and the required skill of appliance information class undergraduate course
Art basic course.Current traditional illustrative, replication experiment teaching method, emphasize the uniformity of teaching process and dominating for teacher
Property, ignore the entity of student and the individual character of student, teaching Process of experiment is constrained the independence and creativeness of student, be unfavorable for
The initiative spirit of training student and the creative culture for putting into practice energy.At present traditional demonstration system of colleges and universities, confirmatory can not meet
The reform in education, for colleges and universities " electromagnetic field and ripple " course, collection is confirmatory, design, comprehensive experimental teaching resource are very deficient
It is weary.
The country has Some Universities to carry out Electromagnetic Fields ＆ Magnetic Waves experimental teaching, such device master using microwave spectrometer at present
If surrounding electromagnetic wave optical characteristics, carry out the illustrative and replication experiment of related electromagnetic wave optical signature.The other device
Volume is big, and auxiliary equipment is more, and experimentation is cumbersome, it is difficult to carries out innovative and experiment designed, effect of visualization unobvious, learns
Habit person is in the passive cognitive process of proof theory, it is difficult to is popularized in colleges and universities.
There are small part colleges and universities to attempt to utilize computer simulation technique in recent years, opened using simulation softwares such as matlab, HFSS
" electromagnetic field and ripple " visualization virtual experimental teaching is opened up, though this kind of method can realize that " electromagnetic wave and electromagnetic wave " virtual image is imitated
Very, but require user have it is skilled use the ability of computer simulation software, while emulate user in modeling process, need to there is phase
When degree EM theory and drawing grounding in basic skills, the relative threshold for improving Electromagnetic Fields ＆ Magnetic Waves course learning aid, in colleges and universities' class
When resource-constrained in the environment of, the invisible added burden for adding " electromagnetic field and ripple " teacher and student, it is difficult in colleges and universities
Popularization.
Utility model content
The utility model is directed to the defects of prior art, there is provided a kind of visual interactive electromagnetic wave experiment teaching system, energy
It is effective to solve the above-mentioned problems of the prior art.
A kind of visual interactive electromagnetic wave experiment teaching system, by teaching experiment platform subsystem, microwave transmitting and receiving subsystem, on
Position machine/slave computer operational control subsystem composition；
The teaching experiment platform subsystem includes：Frame rail mechanism, transmitting antenna bridge, reception antenna bridge, electromagnetic wave
Reflection/transmission bridge, angle measurement sensing electronic system, ranging sensing electronic system, cradle head mechanism；
Three sliding blocks are set in frame rail mechanism, and sliding block coordinates with frame rail mechanism to be slided, and is connected with each other in a manner of sliding pair；
Transmitting antenna bridge, reception antenna bridge and reflection of electromagnetic wave/transmission bridge are respectively arranged on different sliding blocks,
The sliding block of reception antenna bridge is installed between other two sliding block；
Transmitting antenna installation position is set on the transmitting antenna bridge；Transmitting antenna bridge is by rotating mechanism along azimuth plane
Rotate, angle measurement sensing electronic system is installed on rotating mechanism；
Reception antenna installation position is set on the reception antenna bridge, and lower section sets the cradle head mechanism for allowing it to rotate, angle measurement
Sensing electronic system is installed on cradle head mechanism, and ranging sensing electronic system is installed on reception antenna bridge；Reception antenna is pacified
Dress position can change different reception antenna or electromagnetic sensor according to the design of experimental teaching content；Two-dimensional pan-tilt can be in side
Plane and pitching face carry out angular adjustment in the range of 360 degree to reception antenna or self-control electromagnetic sensor；
The reflection of electromagnetic wave/transmission bridge is made up of mounting rod and metallic reflection plate；Metallic reflection plate is installed on installation
On bar；Metallic reflection plate is rotated by rotating mechanism on mounting rod along azimuth plane, and angle measurement sensing electronic is installed on rotating mechanism
System；
The angle measurement sensing electronic system includes angular measurement sensor and transmission control circuit plate, can be according to orientation and pitching appearance
State, acquisition angles information, and transmit corresponding information；
The ranging sensing electronic system includes distance measuring sensor and transmission control circuit plate, according to different sliding blocks in frame rail
On position, gather the relative position information between sliding block, and transmit corresponding information；
The microwave transmitting and receiving subsystem includes rf signal generator, power amplifier, multipolarization transmitting antenna, visualization
Electromagnetic receiving device, wave detector；
The rf signal generator by crystal oscillator, frequency range more than 1Mhz can be to 8Ghz voltage controlled oscillator, frequency conversion
Device, signal amplifier composition, produce the electromagnetic wave signal for frequency-adjustable used in teaching experiment；
The power amplifier is made up of 2W to 10W amplification module and control process circuit, and signal generator is exported
Small and weak electromagnetic wave signal carried out in 300Mhz to 3Ghz band limits full frequency band power amplification or frequency-selecting amplification, make electromagnetic wave
After signal reaches sufficient intensity, multipolarization transmitting antenna is conveyed to；
The multi-polarization antenna is arranged on transmitting antenna installation position, by the microstrip antenna and multipolarization of one pair of n-point feed
Selecting switch group is formed；The microstrip antenna electromagnetism wave direction frame rail direction one-way radiation electromagnetism next by power amplifier transmission is come from
Ripple；Multipolarization selecting switch group, the polarization mode for selecting control radiated electromagnetic wave by switch combination include vertical polarization, level
Polarization, circular polarisation；
The visualization electromagnetic receiving device is made up of reception antenna and passive inducing luminous electronic component；Reception antenna
Reception antenna installation position is installed on, passive inducing luminous electronic component is installed on the receiver port of reception antenna, and with not
The same strong and weak different electromagnetic wave reception signal of brightness display；
The wave detector is installed on electromagnetic wave receiving channel, and detection is carried out to the electromagnetic wave signal for coming from reception antenna,
And the signal after rectified signal is delivered in host computer/slave computer operational control subsystem and handled；
The host computer/slave computer operational control subsystem tests visual interactive by main control computer, single-chip microcomputer, electromagnetic wave
Application software composition is controlled, is mainly used in the visualization mutual motive experiment process of operational control electromagnetic wave, sets electromagnetic wave teaching real
Parameter is tested, the reiving/transmitting state of Detection ＆ Controling electromagnetic wave signal, automatic analysis ranging in real time and angle measurement collection information, completes electromagnetism
Wave property is illustrated graphical treatment, reaches the experimental teaching purpose of visualization electromagnetic wave；
The host computer is used to receive and store the data from distance measuring sensor and angular measurement sensor transmission, and according to reality
The content design of teaching is tested, electromagnetic wave experiment visual interactive control application software is performed, operational order is assigned to slave computer, be visual
Change interactive display electromagnetic characteristics, play exemplary teaching experiment video, demonstration of experiment teaching training material；
The slave computer is for receiving and performing the operational order from host computer, control signal generator output signal frequency
Data and information after the electric signal of rate and signal intensity, collection and processing from wave detector and upload process are to host computer.
Preferably, stroke of the sliding block in frame rail is 1500mm；
Preferably, ranging sensing electronic system EFFECTIVE RANGE is in 0mm~1500mm.
Preferably, the power output of amplifier in 0W to being controlled and adjust between 4W；
Compared with prior art the utility model has the advantage of：It can support extensively around " Electromagnetic Fields ＆ Magnetic Waves ", " micro-
The program content such as wave technology and antenna ", " compatible principle of electromagnetism ", " antenna measurement " requires the design of exploitation, comprehensive, demonstration
Property teaching experiment；The innovative teaching experimental design for surrounding electromagnetic wave knowledge emphasis, difficulties open can be supported, it is sustainable
Experimental project class shape is extensive, wide variety, and knowledge point covering is wide, and the experiment form of expression is lively, directly perceived, and study participation is high, learns
Practise interactive strong, and be abstracted by changing in image, change is obscured as specific means, effectively alleviates generally existing in electromagnetic wave teaching
Theory caused by not seen, can not touch due to electromagnetic wave is difficult to digest, and concept is difficult to understand, theory is difficult to intergrate with practice many
Difficulty, so as to effectively excite the independence of study and consciousness, beneficial to knowledge learning and creative ability training.
Brief description of the drawings
Fig. 1 is the system architecture schematic block diagram of the utility model embodiment；
Fig. 2 is the utility model host computer/slave computer operational control flow chart；
Fig. 3 is that the utility model embodiment electromagnetic wave visual interactive controls application software architecture block diagram.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, by the following examples, to this practicality
It is new to be described in further details.
As shown in figure 1, a kind of visual interactive electromagnetic wave experiment teaching system, is received by teaching experiment platform subsystem, microwave
Send out subsystem, host computer/slave computer operational control subsystem composition；
The teaching experiment platform subsystem includes：Frame rail mechanism 101, transmitting antenna bridge 102, reception antenna bridge
105th, reflection of electromagnetic wave/transmission bridge 106, angle measurement sensing electronic system 108, ranging sensing electronic system 104, cradle head mechanism
109。
Three sliding blocks 107 are set in frame rail mechanism 101, and sliding block 107 coordinates with frame rail mechanism 101 to be slided, with sliding pair side
Formula is connected with each other；Stroke of the sliding block 107 in frame rail 101 is 1500mm.
Transmitting antenna bridge 102, reception antenna bridge 105 and reflection of electromagnetic wave/transmission bridge 106 are respectively arranged in difference
Sliding block 107 on, the sliding block 107 of installation reception antenna bridge 105 is between other two sliding block 107.
Transmitting antenna installation position is set on the transmitting antenna bridge 102；Transmitting antenna bridge 102 passes through rotating mechanism edge
Azimuth plane is rotated, and angle measurement sensing electronic system 108 is installed on rotating mechanism.
Reception antenna installation position is set on the reception antenna bridge 105, and lower section sets the cradle head mechanism for allowing it to rotate
109, angle measurement sensing electronic system 108 is installed on cradle head mechanism 109, and ranging sensing electronic system 104 is installed on reception antenna
On bridge 105；It can change different reception antennas according to the design of experimental teaching content or electromagnetic wave pass reception antenna installation position
Sensor；Two-dimensional pan-tilt can enter in azimuth plane and pitching face in the range of 360 degree to reception antenna or self-control electromagnetic sensor
Row angular adjustment.
The reflection of electromagnetic wave/transmission bridge 106 is made up of mounting rod and metallic reflection plate；Metallic reflection plate is installed on
Fill on bar；Metallic reflection plate is rotated by rotating mechanism on mounting rod along azimuth plane, and angle measurement sensing electricity is installed on rotating mechanism
Subsystem 108.
The angle measurement sensing electronic system 108 includes angular measurement sensor and transmission control circuit plate, according to orientation and can bow
Posture, acquisition angles information are faced upward, and transmits corresponding information.
The ranging sensing electronic system 104 includes distance measuring sensor and transmission control circuit plate, can be according to different sliding blocks
107 position in frame rail, the relative position information between sliding block is gathered, and transmit corresponding information；Ranging EFFECTIVE RANGE
In 0mm~1500mm.
The microwave transmitting and receiving subsystem 111 include rf signal generator, power amplifier, multipolarization transmitting antenna, can
Depending on changing electromagnetic receiving device, wave detector,；
The rf signal generator by crystal oscillator, frequency range more than 1Mhz can be to 8Ghz voltage controlled oscillator, frequency conversion
Device, signal amplifier composition, produce the electromagnetic wave signal for frequency-adjustable used in teaching experiment；
The power amplifier is made up of 2W to 10W amplification module and control process circuit, and signal generator is exported
Small and weak electromagnetic wave signal carried out in 300Mhz to 3Ghz band limits full frequency band power amplification or frequency-selecting amplification, make electromagnetic wave
After signal reaches sufficient intensity, multipolarization transmitting antenna is conveyed to；The power output of amplifier can be controlled in 0W between 4W
System and regulation；
The multi-polarization antenna is arranged on transmitting antenna installation position, by the microstrip antenna and multipolarization of one pair of n-point feed
Selecting switch group is formed；The microstrip antenna electromagnetism wave direction frame rail direction one-way radiation electromagnetism next by power amplifier transmission is come from
Ripple；Multipolarization selecting switch group, the polarization mode for selecting control radiated electromagnetic wave by switch combination include vertical polarization, level
Polarization, circular polarisation.
The visualization electromagnetic receiving device is made up of reception antenna and passive inducing luminous electronic component；Reception antenna
Reception antenna installation position is installed on, passive inducing luminous electronic component is installed on the receiver port of reception antenna, and with not
The same strong and weak different electromagnetic wave reception signal of brightness display；
The wave detector is installed on electromagnetic wave receiving channel, and detection is carried out to the electromagnetic wave signal for coming from reception antenna,
And the signal after rectified signal is delivered in host computer/slave computer operational control subsystem 110 and handled；
The host computer/slave computer operational control subsystem 110 is (the next by main control computer (host computer), single-chip microcomputer
Machine), electromagnetic wave experiment visual interactive control application software composition, be mainly used in the visualization mutual motive experiment of operational control electromagnetic wave
Process, sets electromagnetic wave teaching experiment parameter, the reiving/transmitting state of Detection ＆ Controling electromagnetic wave signal, automatic analysis ranging in real time and
Angle measurement gathers information, completes electromagnetic characteristics and is illustrated graphical treatment, reaches the experimental teaching purpose of visualization electromagnetic wave.
The host computer is used to receive and store the data from distance measuring sensor and angular measurement sensor transmission, and according to reality
The content design of teaching is tested, electromagnetic wave experiment visual interactive control application software is performed, operational order is assigned to slave computer, be visual
Change interactive display electromagnetic characteristics, play exemplary teaching experiment video, demonstration of experiment teaching training material；
The slave computer is for receiving and performing the operational order from host computer, control signal generator output signal frequency
Data and information after the electric signal of rate and signal intensity, collection and processing from wave detector and upload process are to host computer；
The electromagnetic wave experiment visual interactive control application software, include human-computer interaction interface, host computer/slave computer communication
With operational order module, electromagnetic wave experiment visual interactive operational control and visualization display module, the selection of electromagnetic wave experimental project
Module, electromagnetic wave experiential function module, Electromagnetic Fields ＆ Magnetic Waves experimental teaching video playback module, Electromagnetic Fields ＆ Magnetic Waves teaching
Train material database etc..
The human-computer interaction interface is selected, interactive operation with touch-screen or electronics soft keyboard by parameter setting, function
Show and implement etc. mode；
The host computer/slave computer communication and operational order module, by host computer/slave computer communication protocol and the behaviour customized
Make command control system composition；
Electromagnetic wave experiment visual interactive operational control and visualization display module, by meet that different electromagnetic waves are tested
The experiment purpose of project is requires, set function interactive operation button, the graphical image of electromagnetic characteristics experimental result
Change the composition such as processing unit and display unit；
The electromagnetic wave experimental project selecting module, be by with " Electromagnetic Fields ＆ Magnetic Waves ", " Microwave Technique and Antenna ",
Based on the requirements of course teaching outline such as " compatible principle of electromagnetism ", " antenna measurement ", the specific aim of exploitation is strong, interactive visualization
A variety of teaching experiment project libraries composition containing design, the experiment of comprehensive, illustrative；
The electromagnetic wave experiential function module, it is by with specific knowledge emphasis one by one in " Electromagnetic Fields ＆ Magnetic Waves " course
With difficulties, that develops design has automatic data collection and processing and the software module of experimentation interactive visualization function
Composition；
The Electromagnetic Fields ＆ Magnetic Waves experimental teaching video playback module, it is by all multiple religions for including specific experiment process
Learn video composition；
The Electromagnetic Fields ＆ Magnetic Waves teaching, training material database, it is by comprising Electromagnetic Fields ＆ Magnetic Waves guide book of experiment, mark
The teaching material bank composition of the compositions such as quasi-experiment report, experiment outline, experiment teaching notes.
As shown in Figures 2 and 3, the control method based on visual interactive electromagnetic wave experiment teaching system, comprises the following steps：
S1：SCM system initializes；
S2：Check whether the data for collecting ranging sensing electronic system and angle measurement sensing subsystem, microwave transmitting and receiving subsystem
Whether work of uniting is normal；If data and working properly, S3 is performed, otherwise performs S1；
S3：Main control computer shows human-computer interaction interface；
S4：Choice experiment project, experiential function and experiment parameter；
S5：The parameter that microwave transmitting and receiving subsystem sets main control computer, electromagnetic wave is sent by transmitting antenna；
S6：Reception antenna receives the signal from transmitting antenna；
S7：The data receiver that microwave transmitting and receiving subsystem will receive antenna and receive, and visual interactive is tested by electromagnetic wave
Operational control and visualization display module are imaged on human-computer interaction interface.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this reality
With new implementation, it should be understood that the scope of protection of the utility model is not limited to such especially statement and implemented
Example.One of ordinary skill in the art can these technical inspirations according to disclosed in the utility model make and various do not depart from this reality
With new substantive other various specific deformations and combination, these deformations and combination are still in the scope of protection of the utility model
It is interior.
Claims (5)
1. a kind of visual interactive electromagnetic wave experiment teaching system, by teaching experiment platform subsystem, microwave transmitting and receiving subsystem, upper
Machine/slave computer operational control subsystem composition；
The teaching experiment platform subsystem includes：Frame rail mechanism, transmitting antenna bridge, reception antenna bridge, reflection of electromagnetic wave/
Transmit bridge, angle measurement sensing electronic system, ranging sensing electronic system, cradle head mechanism；
Three sliding blocks are set in frame rail mechanism, and sliding block coordinates with frame rail mechanism to be slided, and is connected with each other in a manner of sliding pair；
Transmitting antenna bridge, reception antenna bridge and reflection of electromagnetic wave/transmission bridge are respectively arranged on different sliding blocks, installation
The sliding block of reception antenna bridge is between other two sliding block；
Transmitting antenna installation position is set on the transmitting antenna bridge；Transmitting antenna bridge is turned by rotating mechanism along azimuth plane
It is dynamic, angle measurement sensing electronic system is installed on rotating mechanism；
Reception antenna installation position is set on the reception antenna bridge, and lower section sets the cradle head mechanism for allowing it to rotate, angle measurement sensing
Electronic system is installed on cradle head mechanism, and ranging sensing electronic system is installed on reception antenna bridge；Reception antenna installation position
Different reception antenna or electromagnetic sensor can be changed according to the design of experimental teaching content；Two-dimensional pan-tilt can be in azimuth plane
Angular adjustment is carried out to reception antenna or self-control electromagnetic sensor in the range of 360 degree with pitching face；
The reflection of electromagnetic wave/transmission bridge is made up of mounting rod and metallic reflection plate；Metallic reflection plate is installed on mounting rod；
Metallic reflection plate is rotated by rotating mechanism on mounting rod along azimuth plane, and angle measurement sensing electronic system is installed on rotating mechanism；
The angle measurement sensing electronic system includes angular measurement sensor and transmission control circuit plate, can according to orientation and pitch attitude,
Acquisition angles information, and transmit corresponding information；
The ranging sensing electronic system includes distance measuring sensor and transmission control circuit plate, according to different sliding blocks in frame rail
Position, the relative position information between sliding block is gathered, and transmit corresponding information；
The microwave transmitting and receiving subsystem includes rf signal generator, power amplifier, multipolarization transmitting antenna, visualization electromagnetism
Wave receiving device, wave detector；
The rf signal generator is made up of crystal oscillator, voltage controlled oscillator, frequency converter, signal amplifier, is produced for reality of imparting knowledge to students
Test the electromagnetic wave signal of frequency-adjustable used；
The power amplifier is made up of 2W to 10W amplification module and control process circuit, to the weak of signal generator output
Small electromagnetic wave signal carries out full frequency band power amplification or frequency-selecting amplification in 300Mhz to 3Ghz band limits, makes electromagnetic wave signal
After reaching sufficient intensity, multipolarization transmitting antenna is conveyed to；
The multi-polarization antenna is arranged on transmitting antenna installation position, is selected by the microstrip antenna and multipolarization of one pair of n-point feed
Switches set is formed；The microstrip antenna electromagnetism wave direction frame rail direction one-way radiation electromagnetic wave next by power amplifier transmission is come from；
Multipolarization selecting switch group, the polarization mode for selecting control radiated electromagnetic wave by switch combination include vertical polarization, horizontal pole
Change, circular polarisation；The visualization electromagnetic receiving device is made up of reception antenna and passive inducing luminous electronic component；Receive day
Line is installed on reception antenna installation position, and passive inducing luminous electronic component is installed on the receiver port of reception antenna, and with
The different strong and weak different electromagnetic wave reception signals of brightness display；
The wave detector is installed on electromagnetic wave receiving channel, and detection is carried out to the electromagnetic wave signal for coming from reception antenna, and will
Signal after rectified signal is delivered in host computer/slave computer operational control subsystem and handled；
The host computer/slave computer operational control subsystem is by main control computer, single-chip microcomputer, electromagnetic wave experiment visual interactive control
Application software forms, and is mainly used in the visualization mutual motive experiment process of operational control electromagnetic wave, sets electromagnetic wave teaching to test ginseng
Number, the reiving/transmitting state of Detection ＆ Controling electromagnetic wave signal, automatic analysis ranging in real time and angle measurement collection information, complete electromagnetism baud
Property be illustrated graphical treatment, reach visualization electromagnetic wave experimental teaching purpose；
The host computer is used to receive and store the data from distance measuring sensor and angular measurement sensor transmission, and is taught according to experiment
Content design, perform electromagnetic wave experiment visual interactive control application software, assign operational order, visualization mutually to slave computer
Dynamic display electromagnetic characteristics, play exemplary teaching experiment video, demonstration of experiment teaching training material；
The slave computer be used for receive and perform the operational order from host computer, control signal generator output signal frequency and
Data and information after the electric signal of signal intensity, collection and processing from wave detector and upload process are to host computer.
A kind of 2. visual interactive electromagnetic wave experiment teaching system according to claim 1, it is characterised in that：Sliding block is in frame rail
On stroke be 1500mm.
A kind of 3. visual interactive electromagnetic wave experiment teaching system according to claim 2, it is characterised in that：Ranging sensing electricity
Subsystem EFFECTIVE RANGE is in 0mm~1500mm.
A kind of 4. visual interactive electromagnetic wave experiment teaching system according to claim 3, it is characterised in that：Amplifier it is defeated
Go out power in 0W to being controlled and adjust between 4W.
A kind of 5. visual interactive electromagnetic wave experiment teaching system according to claim 4, it is characterised in that：Voltage controlled oscillator
Frequency range in 1Mhz to 8Ghz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621334006.3U CN206805879U (en) | 2016-12-07 | 2016-12-07 | A kind of visual interactive electromagnetic wave experiment teaching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621334006.3U CN206805879U (en) | 2016-12-07 | 2016-12-07 | A kind of visual interactive electromagnetic wave experiment teaching system |
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| CN206805879U true CN206805879U (en) | 2017-12-26 |
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ID=60728668
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243404A (en) * | 2020-01-19 | 2020-06-05 | 北京理工大学 | Polarization synthesis experiment teaching device and operation method |
| CN113823157A (en) * | 2021-05-11 | 2021-12-21 | 中国矿业大学(北京) | Device technology for polarization and polarization analysis and polarization degree measurement of random elliptical polarization radio wave |
-
2016
- 2016-12-07 CN CN201621334006.3U patent/CN206805879U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243404A (en) * | 2020-01-19 | 2020-06-05 | 北京理工大学 | Polarization synthesis experiment teaching device and operation method |
| CN113823157A (en) * | 2021-05-11 | 2021-12-21 | 中国矿业大学(北京) | Device technology for polarization and polarization analysis and polarization degree measurement of random elliptical polarization radio wave |
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