CN108303600A - It is a kind of measure measured object electromagnetic performance compensation system and compensation method - Google Patents
It is a kind of measure measured object electromagnetic performance compensation system and compensation method Download PDFInfo
- Publication number
- CN108303600A CN108303600A CN201710021868.3A CN201710021868A CN108303600A CN 108303600 A CN108303600 A CN 108303600A CN 201710021868 A CN201710021868 A CN 201710021868A CN 108303600 A CN108303600 A CN 108303600A
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- Prior art keywords
- probe
- sliding
- distance
- measured object
- electromagnetic performance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
Abstract
The invention discloses a kind of compensation system measuring measured object electromagnetic performance and compensation methodes, aim to solve the problem that the height popped one's head in during probe sliding in existing test device has certain fluctuating, the shortcomings that generate error to test result, its key points of the technical solution are that：A kind of compensation system measuring measured object electromagnetic performance, including plummer, the sliding rack being arranged above plummer and with it is at least one can be along the Multi probe array apparatus for the probe that sliding rack slides, plummer is equipped with detection plane, sliding is connected at least one set of distance detection device in sliding rack, and the distance detection device and the probe are coupled with initial distance preset value and equipped with for carrying out calculation processing according to apart from detected value to generate the signal analyzer of the signal processing software of offset data.The compensation system of the present invention has the advantages that can compensate for probe generates height change in slipping and influenced caused by test result to improve measuring accuracy.
Description
Technical field
The present invention relates to antenna measurement technical field, more specifically, it relates to a kind of measured object electromagnetic performance that measures
Compensation system and compensation method.
Background technology
In antenna measurement technology, in order to more accurately test out the electromagnetic performance of measured object, it usually needs right
The different loci of measured object acquires multi-group data, and it is to use more one of method that mobile probe, which measures measured object,.
As the Chinese patent of Publication No. CN204789774U discloses a kind of antenna radiation pattern planar near field scanning test
Equipment, its key points of the technical solution are that：Further include dark including computer, Network Analyzer, servo motor, workbench and printer
Room, the darkroom inner wall are arc surface, and absorbing material is used to be made；The workbench is located at the bottom center in darkroom, one
Lateral edges are equipped with guide rail, are equipped with the probe for test by supporting block on the guide rail, one end of the probe passes through
In cable connection to tested antenna, the other end is connect by cable with the port of the Network Analyzer；The computer passes through
GPIB is connect with the Network Analyzer, and the computer is connect by R323 interfaces with control system；The control system is used
In the control servo motor.
But due to the state that general guide rail can not be completely level, the height popped one's head in during popping one's head in and sliding
Degree has certain fluctuating, to generate error to test result.
Invention content
In view of the deficienciess of the prior art, first of the present invention is designed to provide a kind of measurement measured object electromagnetically
Can compensation system, have can compensate for probe in slipping generate height change and caused by test result influence with
The advantages of improving measuring accuracy.
The present invention above-mentioned technical purpose technical scheme is that：A kind of measurement measured object is electromagnetically
Can compensation system, including plummer, the sliding rack that is arranged above the plummer and with it is at least one can be along described
The Multi probe array apparatus of the probe of sliding rack sliding, the plummer, which is equipped with, detects plane, the company of sliding in the sliding rack
It is connected to the probe synchronizing moving to detect the probe change in elevation and generate the distance detection device apart from detected value, and
The distance detection device and the probe are coupled with initial distance preset value and equipped with for being detected according to distance
Value carries out calculation processing to generate the signal analyzer of the signal processing software of offset data.
By using above-mentioned technical proposal, when test, first measured object is placed on plummer, by sliding probe to quilt
It surveys object to be detected, probe can detect multiple sites of measured object during sliding, pop one's head in from sliding rack
One end slide onto the other end formed covering measured object detection faces, and pop one's head in slide during, distance detection device with
With probe synchronization-sliding, to the distance detection device height change synchronous with probe generation, distance detection device detection is come from
Body is simultaneously generated apart from detected value with detection the distance between plane, and by signal analyzer will apart from detection to and initial distance
Preset value carries out making poor calculating, and the difference obtained illustrates that the change in elevation value of probe, difference are that positive value indicates that probe increases,
Difference is that negative value indicates that probe declines；Signal processing software carries out calculation process according to this change in elevation value, is mended to obtain
Data are repaid, the data of probe detected are compensated, to reduce probe positions relative to floor portion level or probe
It is influenced caused by height change is test result, improves measuring accuracy.
The present invention is further arranged to：The Multi probe array apparatus includes that sliding is connected to the sliding rack for fixing
Driving mechanism on the sliding bar and the setting sliding rack of the probe for driving the sliding bar to move.
By using above-mentioned technical proposal, sliding bar is driven to be moved along sliding rack by driving mechanism, to drive probe
Sliding, you can multiple sites of measured object are tested in realization.
The present invention is further arranged to：The driving mechanism includes the driving motor for being fixed on the sliding rack, is fixed on
Driving wheel in the driving motor shaft, the driven wheel being rotatably connected in the sliding rack and it is sheathed on the active
Wheel and the driven wheel and the conveyer belt for being fixed on the sliding bar.
By using above-mentioned technical proposal, start driving motor, you can conveyer belt movement is driven, since sliding bar is fixed on
On conveyer belt, sliding bar can with conveyer belt along sliding rack toward polyslip, to form covering entirely in the cunning of plummer
Shifting face, probe form the detection site being distributed to measured object rectangular array in the process of moving；And pass through conveyer belt
Form driving sliding bar sliding, occupancy is small, and transmitting range is big, at low cost.
The present invention is further arranged to：The distance detection device includes being fixed on supporting rod and the fixation of the sliding bar
In the supporting rod and positioned at the distance detector detected right over plane, the distance detector is coupled to the signal
Analyzer.
By using above-mentioned technical proposal, distance detector be used for detect its detection position to detect plane between away from
From since detection plane is a horizontal plane, height value of the change in elevation value that distance detector detects i.e. with probe variation
Unanimously, so as to intuitively reflect the change in elevation value of probe, distance detector will be detected to be sent apart from detected value
To signal analyzer, signal analyzer can proceed by calculation processing.
The present invention is further arranged to：The distance detector is laser range finder or infrared ambulator.
By using above-mentioned technical proposal, laser range finder and infrared ambulator detect more convenient and accuracy of detection
It is high.
The present invention is further arranged to：The side of each probe is equipped with one group of distance detection device, and every group away from
From the height change value that detection device corresponds to the probe for detecting adjacent side.
By using above-mentioned technical proposal, every group of distance detection device corresponds to the height change value of one probe of detection, from
And the height change situation each popped one's head in accurately is detected, improve compensation precision.
Second object of the present invention is to provide a kind of compensation method measuring measured object electromagnetic performance, and having can mend
Repay the advantages of probe generates height change in slipping and influenced caused by test result to improve measuring accuracy.
The present invention above-mentioned technical purpose technical scheme is that：A kind of measurement measured object is electromagnetically
The compensation method of energy, including
The distance detector follows the probe synchronization-sliding to detect between the distance detector and the detection plane
Distance generate apart from detected value and the step of be sent to the signal analyzer；
The signal analyzer will make difference to generate change in elevation value and be denoted as Δ L's apart from detected value and initial distance preset value
Step；And the signal processing software carries out calculation processing to generate compensation according to change in elevation value Δ L using compensation formula
The step of data.
By using above-mentioned technical proposal, distance detector follows probe synchronizing moving, to detect in each detection
The distance between its detection position of position and detection plane, and change in elevation value is calculated by signal analyzer, this variation
Height value is also the change in elevation value that probe generates in moving process simultaneously, finally by signal processing software according to compensation formula
It is handled and is obtained offset data, the testing result of probe is compensated, to reduce probe positions relative to ground
Portion is horizontal or the height change generated in slipping of popping one's head in influences testing result, improves accuracy of detection.
In conclusion the invention has the advantages that：
Detect plane, distance detection device and signal analyzer by setting, distance detection device detect its detection position with
The distance between plane is detected, to reflect that the change in elevation value of probe, signal analyzer are calculated according to change in elevation value
Offset data compensates the testing result of probe, to reduce probe positions relative to floor portion level or probe in cunning
Moving the height change generated in the process influences testing result, improves accuracy of detection.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the control block of embodiment one；
Fig. 3 is the flow chart of embodiment two.
In figure：1, plummer；11, plane is detected；2, sliding rack；21, montant；22, cross bar；31, bar is slid；32, it pops one's head in；
331, driving motor；332, driving wheel；333, driven wheel；334, conveyer belt；41, supporting rod；42, distance detector；5, signal
Analyzer；52, signal processing software；6, locating piece；61, elastomeric damper member.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment one：A kind of compensation system measuring measured object electromagnetic performance, as shown in Figure 1, the both sides of plummer 1 are equipped with
Sliding rack 2, sliding rack 2 is made of the cross bar 22 being fixed on the montant 21 and welding montant 21 of 1 both sides of plummer, in cross bar 22
On offer notch, the length of notch is more than the width of plummer 1, in notch sliding be connected with sliding bar 31, in sliding bar 31
Both ends sliding block is fixed with by screw, sliding block is embedded in notch, so as to form being slidably connected for sliding bar 31 and cross bar 22,
Sliding bar 31 is located at the surface of plummer 1, and slides to be formed when bar 31 slides onto the other end from one end of cross bar 22 and cover
Cover the slide surface of entire plummer 1；The side edge of plummer 1 is equipped with detection plane 11, and the upper surface of detection plane 11 is
Horizontal plane；
As shown in Figure 1, being fixed with multiple probes 32 on sliding bar 31, multiple probes 32 are uniformly distributed along the axis direction of interior bar,
32 are popped one's head in downwards, for being detected to measured object；Multiple radio frequencies are fixed with by way of inlay card on sliding bar 31 to connect
Mouthful, radio frequency interface is uniformly distributed along the axis direction of sliding bar 31, and probe 32 is plugged in radio frequency interface, to realize and penetrate
The fixation and electric connection of frequency interface；It is located at the surface of detection plane 11 on sliding bar 31 and positioned at the one of each probe 32
The equal inlay card in side has a supporting rod 41, the lower end of supporting rod 41 to be fixed with distance detector 42, distance detector 42 by screw
Detection mouth face for laser range finder or infrared ambulator, distance detector 42 detects plane 11, so as to detect
The distance between detection plane 11, each distance detector 42 detects the height change value of the probe 32 of its adjacent side；Such as
Shown in Fig. 2, by RF cable and signal analyzer 5, usual signal analyzer 5 uses net for probe 32 and distance detector 42
Network analyzer, signal analyzer 5 is interior to be equipped with an initial distance preset value and equipped with signal processing software 52, signal analyzer 5
It receives multiple 32 test datas for detecting of probe and multiple distance detectors 42 measures apart from detected value, signal processing software
Compensation formula is stored in 52, for obtaining offset data according to apart from detected value progress calculation process, to each probe 32
Test data compensates.
As shown in Figure 1, sliding rack 2 is equipped with the driving mechanism for driving sliding bar 31 to be slid along cross bar 22, driving machine
Structure includes driving motor 331, driving wheel 332, driven wheel 333 and conveyer belt 334；On cross bar 22 and close to one end of cross bar 22
Fixing groove is offered, driving motor 331 is embedded in fixing groove, and is bolted on cross bar 22, and driving motor 331 is adopted
Use servo motor；Mounting hole is offered on driving wheel 332, driving wheel 332 is set in the shaft of driving motor 331, driven wheel
333 are rotatably connected on the other end of cross bar 22；Conveyer belt 334 is sheathed on driving wheel 332 and driven wheel 333, and in tightening
State, to realize the function of power transmission, one end of sliding bar 31 has been bolted connecting plate, connecting plate and transmission
Band 334 is tightened together by screw, to which conveyer belt 334 can drive sliding bar 31 while movement in the process of moving.
As shown in Figure 1, generally for preventing sliding bar 31 from colliding with driving wheel 332 and driven wheel 333, in cross bar 22
It is upper be located at be welded with locating piece 6 close to the position of driving wheel 332 and driven wheel 333, in locating piece 6 towards the side of sliding bar 31
Elastomeric damper member 61 is welded on surface, elastomeric damper member 61 uses spring, when sliding bar 31 slides onto close to 332 He of driving wheel
When the position of driven wheel 333, elastomeric damper member 61 contradicts on sliding bar 31, directly hits driving wheel to reduce sliding bar 31
332 and driven wheel 333 and cause to slide bar 31, the phenomenon that driving wheel 332 and driven wheel 333 damage.
When test, first measured object is placed on plummer 1, starts driving motor 331, you can conveyer belt 334 is driven to move
Dynamic, since sliding bar 31 is fixed on conveyer belt 334, sliding bar 31 can be back and forth sliding along sliding rack 2 with conveyer belt 334
It moves, to form covering entirely in the slide surface of plummer 1, probe 32 is formed in the process of moving to the rectangular battle array of measured object
The detection site of column distribution, to being detected to multiple sites of measured object, and during popping one's head in 32 sliding, each away from
32 synchronization-slidings of probe are followed from detector 42, since detection plane 11 is a horizontal plane, what distance detector 42 detected
Change in elevation value is consistent with the height value of 32 variation of probe, so as to intuitively reflect the change in elevation value of probe 32,
Distance detector 42 detects the distance between itself and detection plane 11 and generates apart from detected value, and passes through signal analyzer
5 will extremely carry out making poor calculating with initial distance preset value apart from detection, and the difference obtained illustrates the change in elevation of probe 32
Value, difference are that positive value indicates that probe 32 increases, and difference is that negative value indicates that probe 32 declines；Signal processing software 52 becomes according to this
Change height value and carry out calculation process using compensation formula, to obtain offset data, the data detected to probe 32 are mended
It repays, is influenced caused by height change is test result to reduce probe 32, improve measuring accuracy.
Embodiment two：A kind of compensation method measuring measured object electromagnetic performance, as shown in figure 3, including
Step 1：Start the driving sliding bar 31 of driving motor 331 to move along sliding rack 2, multiple probes 32 are successively in multiple inspections
Location point is detected measured object and generates test data, and each distance detector 42 follows 32 synchronization-slidings of probe, and same
When be detected its detection mouth to the distance between detection plane 11 in each detection site and generate away from detected value, pop one's head in 32
Test data and signal analyzer 5 is sent to apart from detected value apart from detection and is handled.
Step 2：It is poor apart from detected value and initial distance preset value work that signal analyzer 5 will be received, and obtains variation
Height value is simultaneously denoted as Δ L, and height change list is collectively formed in the change in elevation value of multiple detection sites, to reflect probe 32
Height change situation, change in elevation value Δ L be positive value indicate probe 32 increase, change in elevation value Δ L be negative value indicate probe
32 decline.
Step 3：Signal processing software 52 is calculated according to change in elevation value Δ L using compensation formula, and compensation number is generated
According to each change in elevation value Δ L corresponds to a compensation data values, to which the testing result to probe 32 compensates；
Its calculating process is：First according to phase difference value calculation formula Δ θ=2 π | Δ L%λ|, wherein λ is measured object wavelength, is calculated
Go out phase difference value, offset is calculated further according to according to phase difference value, for example, test value is A*eiθ, finally obtained after compensated
Value be A*ei(θ-Δθ)。
Each distance detector 42 follows 32 synchronizing movings of probe, to detect in its detection position of each test position
The distance between detection plane 11, and change in elevation value is calculated by signal analyzer 5, this change in elevation value is simultaneously
It is the 32 change in elevation values generated in moving process of popping one's head in, is finally handled according to compensation formula by signal processing software 52
And obtain offset data, the testing result of probe 32 is compensated, is generated in slipping to reduce probe 32
Height change influences testing result, improves accuracy of detection.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of compensation system measuring measured object electromagnetic performance, it is characterised in that：Including plummer (1), it is arranged and is held described
Sliding rack (2) above microscope carrier (1) and the Multi probe at least one probe (32) that can be slid along the sliding rack (2)
Array apparatus, the plummer (1) are equipped with detection plane (11), slide and be connected with and the probe on the sliding rack (2)
(32) synchronizing moving to be to detect probe (32) change in elevation and generate distance detection device apart from detected value, and it is described away from
It is coupled with initial distance preset value and equipped with for the detected value with a distance from from detection device and the probe (32)
Calculation processing is carried out to generate the signal analyzer (5) of the signal processing software (52) of offset data.
2. a kind of compensation system measuring measured object electromagnetic performance according to claim 1, it is characterised in that：More spies
Head array device include sliding be connected to the sliding rack (2) for fix it is multiple it is described probe (32) sliding bar (31) and set
Set the driving mechanism for driving the sliding bar (31) mobile in the sliding rack (2).
3. a kind of compensation system measuring measured object electromagnetic performance according to claim 2, it is characterised in that：The driving
Mechanism includes being fixed on the driving motor (331) of the sliding rack (2), the master being fixed in the driving motor (331) shaft
Driving wheel (332), the driven wheel (333) being rotatably connected in the sliding rack (2) and be sheathed on the driving wheel (332) and
The driven wheel (333) and the conveyer belt (334) for being fixed on the sliding bar (31).
4. a kind of compensation system measuring measured object electromagnetic performance according to claim 2 or 3, it is characterised in that：It is described
Distance detection device includes being fixed on the supporting rod (41) of the sliding bar (31) and being fixed on the supporting rod (41) and be located at
Distance detector (42) right over the detection plane (11), the distance detector (42) are coupled to the signal analyzer
(5)。
5. a kind of compensation system measuring measured object electromagnetic performance according to claim 4, it is characterised in that：The distance
Detector (42) is laser range finder or infrared ambulator.
6. a kind of compensation system measuring measured object electromagnetic performance according to claim 4, it is characterised in that：It is each described
The side of probe (32) is equipped with one group of distance detection device, and every group of distance detection device corresponds to and detect the described of adjacent side
The height change value of probe (32).
7. a kind of compensation method measuring measured object electromagnetic performance, it is characterised in that：Including
The distance detector (42) follow probe (32) synchronization-sliding with detect the distance detector (42) with it is described
The step of the distance between detection plane (11) generates apart from detected value and is sent to the signal analyzer (5)；The signal
The step of analyzer (5) will generate change in elevation value with initial distance preset value work difference apart from detected value and be denoted as Δ L；
And the signal processing software (52) carries out calculation processing using compensation formula according to change in elevation value Δ L and is mended with generating
The step of repaying data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021868.3A CN108303600B (en) | 2017-01-12 | 2017-01-12 | Compensation system and compensation method for measuring electromagnetic performance of measured object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021868.3A CN108303600B (en) | 2017-01-12 | 2017-01-12 | Compensation system and compensation method for measuring electromagnetic performance of measured object |
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| Publication Number | Publication Date |
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| CN108303600A true CN108303600A (en) | 2018-07-20 |
| CN108303600B CN108303600B (en) | 2023-07-28 |
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| CN201710021868.3A Active CN108303600B (en) | 2017-01-12 | 2017-01-12 | Compensation system and compensation method for measuring electromagnetic performance of measured object |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273281A (en) * | 2020-02-07 | 2020-06-12 | 北京环境特性研究所 | Short-distance electromagnetic measurement method and system |
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| CN111273281B (en) * | 2020-02-07 | 2021-12-07 | 北京环境特性研究所 | Short-distance electromagnetic measurement method and system |
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