CN107884640A - It is a kind of to be used to test the horizontal vector network system of transmission line of electricity sourceless seism - Google Patents
It is a kind of to be used to test the horizontal vector network system of transmission line of electricity sourceless seism Download PDFInfo
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- CN107884640A CN107884640A CN201710997188.5A CN201710997188A CN107884640A CN 107884640 A CN107884640 A CN 107884640A CN 201710997188 A CN201710997188 A CN 201710997188A CN 107884640 A CN107884640 A CN 107884640A
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- Prior art keywords
- port
- conversion module
- vector network
- photoelectric conversion
- network analyzer
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
Abstract
The invention discloses a kind of vector network system for being used to test transmission line of electricity sourceless seism, the system is mutually transferred by radiating circuit connected vector Network Analyzer, and by the vector network analyzer with receiving circuit；The radiating circuit, including transmitting antenna, amplifier, first port photoelectric conversion module, first port connection optical fiber, the first port electrooptic conversion module being sequentially connected；The amplifier and the first port photoelectric conversion module are arranged in the first shielded box；The first port electrooptic conversion module is input a signal into the vector network analyzer；The receiving circuit, including it is sequentially connected the reception antenna connect, second port photoelectric conversion module, second port connection optical fiber, second port electrooptic conversion module；The second port photoelectric conversion module is arranged in secondary shielding case；The second port electrooptic conversion module receives the output signal of the vector network analyzer.
Description
Technical field
The present invention relates to transmission line of electricity measurement of electromagnetic environment technical field, is used to test transmission of electricity more particularly, to one kind
The horizontal vector network system of circuit sourceless seism.
Background technology
After electric transmission line erection, because the nearby radio station is sent or distant place radio incident electromagnetic wave is in power transmission line
Electromagnetic scattering can be produced on road, aerial earth wire and steel tower, so as to be had an impact to the reception of nearby radio receiving station,
I.e.：Sourceless seism influences.
Two kinds of means are typically tested using calculating prediction and scale model for the sourceless seism problem of transmission line of electricity.Due to
Transmission line of electricity enormous size, and due to being influenceed by space environment electromagnetic interference, prior art is difficult to carry out actual track
Sourceless seism is tested.
Therefore, it is necessary to which a kind of technology, passes through vector network analysis with the signal for solving horizontal to transmission line of electricity sourceless seism
The problem of instrument measures.
The content of the invention
Be used to test the horizontal vector network system of transmission line of electricity sourceless seism the invention provides a kind of, with solve due to
Transmission line of electricity enormous size, and by space environment electromagnetic interference influenceed to be difficult to carry out the signal of the sourceless seism of actual track
Measurement problem.
In order to solve the above problems, it is used to test the horizontal vector net of transmission line of electricity sourceless seism the invention provides a kind of
Network system, the system is by radiating circuit connected vector Network Analyzer, and by the vector network analyzer and receives electricity
Mutually transfer on road；
The radiating circuit, including be sequentially connected transmitting antenna, amplifier, first port photoelectric conversion module, first
Port connection optical fiber, first port electrooptic conversion module；The amplifier and the first port photoelectric conversion module are arranged at
In first shielded box；The first port electrooptic conversion module is input a signal into the vector network analyzer；
The receiving circuit, including be sequentially connected the reception antenna connect, second port photoelectric conversion module, second port and connect
Connect optical fiber, second port electrooptic conversion module；The second port photoelectric conversion module is arranged in secondary shielding case；Described
Two-port netwerk electrooptic conversion module receives the output signal of the vector network analyzer.
Preferably, first shielded box or the secondary shielding case are closed metal box.
Preferably, the first port connection optical fiber or second port connection optical fiber are single-mode fiber.
Preferably, distance is no more than 5km between the transmitting antenna and the reception antenna.
Technical solution of the present invention solves the problems, such as signal long-distance transmission using optical fiber and photoelectricity, electrooptic conversion module,
And signal is subjected to power amplification using amplifier, to ensure the transmission power of transmitting antenna.Technical scheme profit
Antijamming capability of the test system to extraneous electromagnetic environment is improved with shielded box, test is improved using vector network analyzer
System improves transmittability of the test system to long range signals to the detectability of small-signal using optical fiber transmission, from
And realize the research long-distance transmission line detectability horizontal to send-receive antenna system sourceless seism.
Brief description of the drawings
By reference to the following drawings, the illustrative embodiments of the present invention can be more fully understood by：
Fig. 1 is a kind of vector network system knot for being used to test transmission line of electricity sourceless seism according to embodiment of the present invention
Composition.
Embodiment
The illustrative embodiments of the present invention are introduced with reference now to accompanying drawing, however, the present invention can use many different shapes
Formula is implemented, and is not limited to embodiment described herein, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
Fig. 1 is a kind of vector network system knot for being used to test transmission line of electricity sourceless seism according to embodiment of the present invention
Composition.Embodiment of the present invention provides a kind of vector network system for being used to test transmission line of electricity sourceless seism level.Test system
System includes vector network analyzer, signal amplifier, transmitting antenna, reception antenna, first port photoelectric conversion module, first end
Mouth electrooptic conversion module, second port photoelectric conversion module, second port electrooptic conversion module are formed.The structure of system is as follows：
Pass through first port photoelectric conversion module, first port electrooptic conversion module and vector network point after transmitting antenna connection amplifier
Analyzer first port is connected.Reception antenna passes through second port photoelectric conversion module, second port electrooptic conversion module and vector
Network Analyzer second port is connected.
As shown in figure 1, a kind of be used to test in the vector network system of transmission line of electricity sourceless seism, system is by radiating circuit
Connected vector Network Analyzer, and vector network analyzer is mutually transferred with receiving circuit；
Radiating circuit, including transmitting antenna 2, amplifier 12, the first port photoelectric conversion module 5, first being sequentially connected
Port connection optical fiber 8, first port electrooptic conversion module 4；Amplifier 12 and first port photoelectric conversion module 5 are arranged at first
10 in shielded box；First port electrooptic conversion module 4 is input a signal into vector network analyzer 1.
Receiving circuit, including it is sequentially connected the reception antenna 3 connect, second port photoelectric conversion module 7, second port connection
Optical fiber 9, second port electrooptic conversion module 6；Second port photoelectric conversion module 7 is arranged at 11 in secondary shielding case；Second end
Mouth electrooptic conversion module 6 receives the output signal of vector network analyzer 1.
Preferably, the first shielded box 10 or secondary shielding case 11 are closed metal box.
Preferably, first port connection optical fiber 8 or second port connection optical fiber 9 are single-mode fiber.
Preferably, distance is no more than 5km between transmitting antenna 2 and reception antenna 3.
Below to this bright embodiment concrete example explanation：
The application embodiment is a kind of to be used to test the horizontal vector network system 100 of transmission line of electricity sourceless seism, including
Vector network analyzer 1, transmitting antenna 2, reception antenna 3, first port electrooptic conversion module 4, first port opto-electronic conversion mould
Block 5, second port electrooptic conversion module 6, second port photoelectric conversion module 7, first port connection optical fiber 8, second port connect
Optical fiber 9, first port shielded box 10, second port shielded box 11 and amplifier 12 is connect to form.
In the application, transmitting antenna 2 is connected after connecting amplifier 12 by first port photoelectric conversion module 5, first port
Connect optical fiber 8, and first port electrooptic conversion module 4 be connected after be connected with vector network analyzer 1.
Reception antenna 3 connects optical fiber 9 by second port photoelectric conversion module 7, second port in the application embodiment,
It is connected after being connected with second port electrooptic conversion module 6 with vector network analyzer 1.
First port photoelectric conversion module 5 and amplifier 12 are arranged at first port shielded box in the application embodiment
In 10.Second port photoelectric conversion module 7 is arranged in second port shielded box.
In the application, first port electrooptic conversion module 4 and second port electrooptic conversion module 6 convert analog signals into
The electrical to optical converter of data signal.
In the application, first port photoelectric conversion module 5 and second port photoelectric conversion module 7 are to change data signal
For the optical-electrical converter of analog signal.
Analog signal is carried out by power amplification by amplifier 12 in the application.
In the application, first port shielded box 10 or second port shielded box 11 are closed metal box, and shell turns with photoelectricity
Mold changing block low-pressure end is connected；The shell of first port shielded box 10 is connected with the low-pressure end of the first photoelectric conversion module 5；Second port
The shell of shielded box is connected with the low-pressure end of second port photoelectric conversion module 7.
It is single-mode fiber that first port connection optical fiber 8, which connects optical fiber 9 with second port, in the application；
According to specific embodiment provided by the invention, the invention discloses following technique effect：
The a kind of of the present invention is used to test the horizontal vector network system of transmission line of electricity sourceless seism, utilizes optical fiber and light
Electricity, electrooptic conversion module solve the problems, such as signal long-distance transmission, and remain amplifier to ensure the hair of transmitting antenna
Penetrate power.
In some embodiments, by first port photoelectric conversion module 5 and the efficiency of second port photoelectric conversion module 7
Influence, and the influence of first port electrooptic conversion module 4 and the efficiency of second port electrooptic conversion module 6, test system transmitting
Antenna 2 and the distance of reception antenna 3 are no more than 5km.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
What subsidiary Patent right requirement was limited, except the present invention other embodiments disclosed above equally fall the present invention's
In the range of.
Normally, all terms used in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly being defined in addition wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurately order, unless explicitly stated otherwise.
Claims (4)
1. a kind of be used to test the horizontal vector network system of transmission line of electricity sourceless seism, radiating circuit is connected and sweared by the system
Network Analyzer is measured, and the vector network analyzer is mutually transferred with receiving circuit；
The radiating circuit, including be sequentially connected transmitting antenna, amplifier, first port photoelectric conversion module, first port
Connect optical fiber, first port electrooptic conversion module；The amplifier and the first port photoelectric conversion module are arranged at first
In shielded box；The first port electrooptic conversion module is input a signal into the vector network analyzer；
The receiving circuit, including it is sequentially connected the reception antenna connect, second port photoelectric conversion module, second port connection light
Fine, second port electrooptic conversion module；The second port photoelectric conversion module is arranged in secondary shielding case；Second end
Mouth electrooptic conversion module receives the output signal of the vector network analyzer.
2. system according to claim 1, first shielded box or the secondary shielding case are closed metal box.
3. system according to claim 1, the first port connection optical fiber or second port connection optical fiber are single-mode optics
It is fine.
4. system according to claim 1, distance is no more than 5km between the transmitting antenna and the reception antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997188.5A CN107884640A (en) | 2017-10-23 | 2017-10-23 | It is a kind of to be used to test the horizontal vector network system of transmission line of electricity sourceless seism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997188.5A CN107884640A (en) | 2017-10-23 | 2017-10-23 | It is a kind of to be used to test the horizontal vector network system of transmission line of electricity sourceless seism |
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| Publication Number | Publication Date |
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| CN107884640A true CN107884640A (en) | 2018-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709420A (en) * | 2018-12-27 | 2019-05-03 | 中电科仪器仪表有限公司 | A kind of Integral wire cable test method based on vector network analyzer |
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