CN106680757A - Detection device used for spherical enveloped anti-interference digital electric meter and using method of said device - Google Patents
Detection device used for spherical enveloped anti-interference digital electric meter and using method of said device Download PDFInfo
- Publication number
- CN106680757A CN106680757A CN201710002784.5A CN201710002784A CN106680757A CN 106680757 A CN106680757 A CN 106680757A CN 201710002784 A CN201710002784 A CN 201710002784A CN 106680757 A CN106680757 A CN 106680757A
- Authority
- CN
- China
- Prior art keywords
- signal
- spherical
- receiving device
- interference
- electric meter
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a detection device used for a spherical enveloped anti-interference digital electric meter. The device includes a power source, a signal emitting device, a signal receiving device and a signal processing and analyzing device. The device is also provided with a spherical net frame used for fixing emitting terminals of the signal emitting device and enveloping a to-be-detected spherical enveloped shielding structure. The signal receiving device is arranged in the to-be-detected spherical enveloped shielding structure. The signal emitting device includes a random signal generator connected with the power source and an interference coil connected with the power source and the random signal generator at the same time. The signal receiving device includes a mechanical wave receiving device and an electromagnetic signal receiving device. The detection device used for the spherical enveloped anti-interference digital electric meter is a dedicated device for detecting shielding performance of the spherical enveloped shielding structure, can realize comprehensive measurement of multiple kinds of interferences and is high in data reliability and comprehensive in detection.
Description
Technical field
The present invention and electrical appliance field, more particularly to a kind of anti-interference digital electric meter testing equipment of spherical envelope and its
Using method.
Background technology
It is anti-interference：For resisting the subsystem or technology of any interference of communication or radar operation.Academic definition：Combined circuit
The characteristics of make interference be reduced to minimum；Or refer to that equipment is prevented from through antenna input, the shell of equipment and along power supply
Line acts on the electromagnetic interference of equipment.
Anti-interference conventional employing metal screen layer in existing patent, using signal processing, using symmetrical opposite planar bag
Network carries out the modes such as Interference Cancellation, but any single polymeric barrier layer materials have its defect and short slab.
The device that can not shielded with spherical all on the market, is not naturally also exclusively used in the screen of spherical shield structure
Cover device for detecting performance.Existing applicant has applied a kind of digital electric meter for applying spherical envelope shielding construction (such as accompanying drawing 3 simultaneously
It is shown), need the using method of a kind of supporting testing equipment and the equipment badly.
The content of the invention
To solve drawbacks described above present in prior art, the present invention is intended to provide a kind of detectable spherical shield structure
The anti-interference digital electric meter testing equipment of spherical envelope and its using method.
In order to realize foregoing invention purpose, the present invention is employed the following technical solutions：A kind of anti-interference digital electricity of spherical envelope
Table testing equipment, including power supply, sender unit, signal receiving device, signal processing analysis device, be additionally provided with for
The spherical screen frame of the launch terminal the spherical envelope shielding construction to be detected that encompasses of some sender units of fixation, signal are received
Device is arranged in spherical envelope shielding construction to be detected；Sender unit includes the random signal generator being connected with power supply
And while the interference coil being connected with power supply and random signal generator；Signal receiving device includes mechanical wave receiving device and electricity
Magnetic signal reception device.
The anti-interference digital electric meter testing equipment of above-mentioned spherical envelope, wherein：The random signal generator at least may be used
Generation sinusoidal signal ripple, function wave, rectangle involve chaotic noise ripple；The sinusoidal signal ripple, function wave, square wave are at least wrapped
Include the two kinds of frequency ranges of low frequency for the high frequency and not higher than 10HZ for being not less than 1000HZ.
The anti-interference digital electric meter testing equipment of above-mentioned spherical envelope, wherein：The anti-interference digital electricity of the spherical envelope
Table testing equipment includes two sets of independent circuits：First set includes the first power supply, signal receiving device and signal processing analysis dress
Put；Second set includes second source, sender unit.
The anti-interference digital electric meter testing equipment of above-mentioned spherical envelope, wherein：The testing equipment is additionally provided with and signal
The alarm of Treatment Analysis device connection.
The using method of the anti-interference digital electric meter testing equipment of above-mentioned spherical envelope, comprises the following steps：
1) equipment prepares
1. using with batch ammeter manufacture shielding line, method for winding, around linear dimension, make the spherical envelope of fine and close cage shape
Shielding construction, signal receiving device is encompassed including, signal receiving device external connection is adopted with spherical envelope shielding construction seam
Sealed with carbon film；
2. spherical screen frame is encompassed outside spherical envelope shielding construction, the launch terminal of several sender units is set
Put in spherical screen frame diverse location, all launch terminal direction of the launch are perpendicular to spherical envelope shielding construction；
3. signal receiving device external connection is connected with power supply and signal processing analysis device respectively；Several signals are sent out
The launch terminal of injection device is connected with the random signal generator being arranged in sender unit, and interference coil is by random letter
Number generator and power supply connection.
2) detection action
1. open signal reception device；
2. random signal generator simultaneously in open signal discharger, unlatching interference coil；
3. current waveform and frequency of the waveform and frequency adjustment that regulation random signal generator sends by interference coil
Rate；
3) signal processing analysis
1. signal processing analysis device receives the signal of signal receiving device, the tranmitting frequency and ripple with sender unit
Shape is contrasted；
2. by relative analyses, screening factor R values, shielding attenuation dB values are calculated, that is, completes the anti-interference number of spherical envelope
Word ammeter shielding propertiess are detected.
Compared with prior art, the present invention has advantages below：Realized to spherical shield structual shield performance first
The testing equipment breakthrough of zero；Due to being provided with mechanical wave generating device and electromagnetic interference wave transmitting device simultaneously, more can be entirely square
Position ground ensures detected spherical shield structural behaviour, it is ensured that its performance in actual applications, due to preferred random
Signal generator can occur the interference ripple of various waveforms, frequency, intensity simultaneously, therefore detected shielding propertiess are also more complete
It is face, reliable, safe.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Structural representations of the Fig. 2 for spherical envelope shielding construction.
The structural representation of the anti-interference digital electric meter that Fig. 3 is detected by the present invention.
The structural representation of the shielding line in the anti-interference digital electric meter that Fig. 4 is detected by the present invention.
In figure：Sequence number 1-8 is the component of the present invention, including spherical envelope shielding construction 1, mechanical wave receiving device 2, spherical
Screen frame 3, electromagnetic signal reception device 4, carbon film 5, signal processing analysis device 6, sender unit 7, power supply 8.
The component of the anti-interference digital electric meter that sequence number 9-19 is detected by the present invention, including watchcase 9, envelope mask structure
10th, current coil 11, potential winding 12, live wire 13, zero line 14, numeric display unit 15, carbon film 16, phosphate coating layer 17,
High-frequency electromagnetic shielding structure 18, low frequency electromagnetic shielding construction 19.
Specific embodiment
Embodiment 1
A patent that the present invention applies on the same day for the present inventor《A kind of anti-interference digital electric meter and its manufacture method》,
It is the apparatus and method detected by the shield effectiveness of spherical envelope element therein.The anti-interference digital electric meter by watchcase 9,
It is arranged on 15 groups of the numeric display unit of the measurement apparatus and measurement apparatus connection be connected with live wire 13 and zero line 14 in watchcase 9
Into, wherein including current coil 11 and the potential winding 12 for matching in measurement apparatus, the anti-interference digital electric meter is additionally provided with
The material and the items of coiling of the employing of the spherical envelope shielding construction 1 tested in envelope mask structure 10, with the present invention
Parameter is consistent, but difference is, the measurement apparatus (are included 11 He of current coil for matching by the envelope mask structure 10
Potential winding is 12) including envelope, and the spherical envelope shielding construction 1 is then that signal receiving device (is received including mechanical wave
Device and electromagnetic signal reception device) including envelope, carbon film 5 and carbon film 16 are used respectively using the two at the interface gaps of envelope
(the two material is the same, repeats to number to distinguish) sealing；Shielding line of the envelope mask layer by two-layer different rotary direction
Net is laminated；The shielding line includes phosphate coating layer 17, low frequency electromagnetic shielding construction 19 and high-frequency electromagnetic shielding knot
18 3 parts of structure.
The anti-interference digital electric meter testing equipment of a kind of spherical envelope of the present invention, for detection and envelope mask structure 10
The shield effectiveness of identical test block spherical envelope shielding construction 1, with batch can in total quantity ratio coiling, including power supply 8, letter
Number discharger 7, signal receiving device, signal processing analysis device 6；It is additionally provided with for fixing some sender units 7
Launch terminal and the spherical envelope shielding construction to be detected 1 that encompasses spherical screen frame 3, signal receiving device is arranged on ball to be detected
In shape envelope mask structure 1；Sender unit 7 include the random signal generator being connected with power supply 8 and while with power supply 8 and
The interference coil of random signal generator connection；Signal receiving device includes that mechanical wave receiving device 2 and electromagnetic signal receive dress
Put 4；The random signal generator can occur sinusoidal signal ripple, function wave, rectangle and involve chaotic noise ripple；The sinusoidal signal
Ripple, function wave, square wave include two kinds of frequency ranges of low frequency of the high frequency and 10HZ of 1000HZ；The testing equipment is additionally provided with and letter
The alarm of number Treatment Analysis device 6 connection.
The method of the anti-interference digital electric meter testing equipment of above-mentioned spherical envelope, comprises the following steps：
1) equipment prepares
1. wound and same batch of 10 consistent shape of envelope mask structure made by shielding line (i.e. fine and close cage using shielding line
Shape) test block spherical envelope shielding construction 1, signal receiving device is encompassed including, signal receiving device external connection with it is spherical
1 seam of envelope mask structure is sealed using carbon film 5；
2. spherical screen frame 3 is encompassed outside spherical envelope shielding construction 1, by the transmitting end of several sender units 7
End is arranged on 3 diverse location of spherical screen frame, and all launch terminal direction of the launch are perpendicular to spherical envelope shielding construction 1；
3. signal receiving device external connection is connected with power supply 8 and signal processing analysis device 6 respectively；By several signals
The launch terminal of discharger 7 is connected with the random signal generator being arranged in sender unit 7, interference coil by with
Machine signal generator and power supply 8 connect；
2) detection action
1. open signal reception device；
2. random signal generator simultaneously in open signal discharger 7, unlatching interference coil；
3. current waveform and frequency of the waveform and frequency adjustment that regulation random signal generator sends by interference coil
Rate；
3) signal processing analysis
1. signal processing analysis device 6 receives the signal of signal receiving device, with the tranmitting frequency of sender unit 7 and
Waveform is contrasted；
2. by relative analyses, screening factor R values, shielding attenuation dB values are calculated, that is, completes the anti-interference number of spherical envelope
Word ammeter shielding propertiess survey inspection.
Embodiment 2
It is overall consistent with embodiment 1, in place of difference be：
The waveform and frequency of random signal generator transmitting are not limited；
The anti-interference digital electric meter testing equipment of spherical envelope includes two sets of independent circuits：First set include the first power supply,
Signal receiving device and signal processing analysis device 6；Second set includes second source, sender unit 7；
It is not provided with alarm.
Embodiment 3
It is overall consistent with embodiment 1, in place of difference be：
The waveform and frequency of random signal generator transmitting are not limited；
It is not provided with alarm.
According to the anti-interference digital electric meter testing equipment of spherical envelope that this programme is realized, detected performance parameter
For：Electromagnetic shielding coefficients R value：Electromagnetism sine wave not higher than 0.002, electromagnetism square wave not higher than 0.001, electromagnetic function ripple be not high
0.0025 is not higher than in 0.001, electromagnetism confusion ripple；Mechanical wave shielding attenuation dB values：It is not low that sine wave is not less than 20dB, square wave
22dB, chaotic ripple are not less than in 22dB, function wave and are not less than 17dB.On the one hand the spherical shield structure that explanation applicant declares is true
It is real to be better than prior art, on the other hand also illustrate that the testing equipment complete function of the present invention, using method are rationally effective.
The foregoing description of the disclosed embodiments, only for enabling professional and technical personnel in the field to realize or using this
Invention.Various modifications to these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide scope of point.
Claims (5)
1. the anti-interference digital electric meter testing equipment of a kind of spherical envelope, including power supply (8), sender unit (7), signal connect
Receiving apparatus, signal processing analysis device (6), it is characterised in that：It is additionally provided with for fixing sending out for some sender units (7)
Penetrate terminal and the spherical screen frame (3) of spherical envelope shielding construction (1) to be detected of encompassing, signal receiving device is arranged on ball to be detected
In shape envelope mask structure (1)；Sender unit (7) include the random signal generator being connected with power supply (8) and while with
Power supply (8) and the interference coil of random signal generator connection；Signal receiving device includes mechanical wave receiving device (2) and electromagnetism
Signal receiving device (4).
2. the anti-interference digital electric meter testing equipment of spherical envelope according to claim 1, it is characterised in that：It is described random
Signal generator can at least occur sinusoidal signal ripple, function wave, rectangle and involve chaotic noise ripple；The sinusoidal signal ripple, function
Ripple, square wave at least include the two kinds of frequency ranges of low frequency for the high frequency and not higher than 10HZ for being not less than 1000HZ.
3. the anti-interference digital electric meter testing equipment of spherical envelope according to claim 1, it is characterised in that：It is described spherical
The anti-interference digital electric meter testing equipment of envelope includes two sets of independent circuits：First set includes the first power supply, signal receiving device
With signal processing analysis device (6)；Second set includes second source, sender unit (7).
4. the anti-interference digital electric meter testing equipment of spherical envelope according to claim 1, it is characterised in that：The detection sets
It is standby to be additionally provided with the alarm being connected with signal processing analysis device (6).
5. the using method of the anti-interference digital electric meter testing equipment of a kind of above-mentioned spherical envelope, it is characterised in that including following step
Suddenly：
1) equipment prepares
1. using with batch ammeter manufacture shielding line, method for winding, around linear dimension, make the spherical envelope shielding of fine and close cage shape
Structure (1), signal receiving device is encompassed including, signal receiving device external connection and spherical envelope shielding construction (1) seam
Sealed using carbon film (5)；
2. spherical screen frame (3) is encompassed in spherical envelope shielding construction (1) outward, by the transmitting of several sender units (7)
Terminal is arranged on spherical screen frame (3) diverse location, and all launch terminal direction of the launch are perpendicular to spherical envelope shielding construction (1)；
3. signal receiving device external connection is connected with power supply (8) and signal processing analysis device (6) respectively；By several signals
The launch terminal of discharger (7) is connected with the random signal generator being arranged in sender unit (7), and interference coil leads to
Cross random signal generator and power supply (8) connection.
2) detection action
1. open signal reception device；
2. random signal generator simultaneously in open signal discharger (7), unlatching interference coil；
3. current waveform and frequency of the waveform and frequency adjustment that regulation random signal generator sends by interference coil；
3) signal processing analysis
1. signal processing analysis device (6) receives the signal of signal receiving device, with the tranmitting frequency of sender unit (7) and
Waveform is contrasted；
2. by relative analyses, screening factor R values, shielding attenuation dB values are calculated, that is, completes the anti-interference numeral electricity of spherical envelope
Table shielding propertiess are detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002784.5A CN106680757A (en) | 2017-01-03 | 2017-01-03 | Detection device used for spherical enveloped anti-interference digital electric meter and using method of said device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002784.5A CN106680757A (en) | 2017-01-03 | 2017-01-03 | Detection device used for spherical enveloped anti-interference digital electric meter and using method of said device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106680757A true CN106680757A (en) | 2017-05-17 |
Family
ID=58849191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710002784.5A Pending CN106680757A (en) | 2017-01-03 | 2017-01-03 | Detection device used for spherical enveloped anti-interference digital electric meter and using method of said device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106680757A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05259999A (en) * | 1992-03-11 | 1993-10-08 | Nec Corp | Sensitivity inspector for selective call receiver containing display function |
| CN1936610A (en) * | 2006-10-17 | 2007-03-28 | 中原工学院 | Method for detecting shield effect of electromagnetic-radiation-preventive clothing |
| CN201196667Y (en) * | 2008-05-20 | 2009-02-18 | 常州雷宁电磁屏蔽设备有限公司 | Shielding performance detection apparatus of shield room |
| KR101336833B1 (en) * | 2013-02-01 | 2013-12-04 | 한국표준과학연구원 | Monitoring system for shield effect of emp shelter |
| CN104597336A (en) * | 2013-10-30 | 2015-05-06 | 中国科学院上海微系统与信息技术研究所 | Non-magnetic Dewar flask electromagnetic shielding property testing method and device |
| CN104849592A (en) * | 2015-05-12 | 2015-08-19 | 中国科学院国家天文台 | Radio telescope broadband electromagnetic shielding effectiveness detection system and detection method thereof |
| CN105022020A (en) * | 2015-07-02 | 2015-11-04 | 国网山东省电力公司电力科学研究院 | RF electromagnetic field and radio immunity test system and method of electric energy meter |
| CN105785166A (en) * | 2016-03-02 | 2016-07-20 | 北京市劳动保护科学研究所 | Transmission device and method for test signals in shielding body, shielding body and test device |
| CN105827358A (en) * | 2016-06-03 | 2016-08-03 | 广州市诚臻电子科技有限公司 | Device and system for shielding effectiveness detection |
-
2017
- 2017-01-03 CN CN201710002784.5A patent/CN106680757A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05259999A (en) * | 1992-03-11 | 1993-10-08 | Nec Corp | Sensitivity inspector for selective call receiver containing display function |
| CN1936610A (en) * | 2006-10-17 | 2007-03-28 | 中原工学院 | Method for detecting shield effect of electromagnetic-radiation-preventive clothing |
| CN201196667Y (en) * | 2008-05-20 | 2009-02-18 | 常州雷宁电磁屏蔽设备有限公司 | Shielding performance detection apparatus of shield room |
| KR101336833B1 (en) * | 2013-02-01 | 2013-12-04 | 한국표준과학연구원 | Monitoring system for shield effect of emp shelter |
| CN104597336A (en) * | 2013-10-30 | 2015-05-06 | 中国科学院上海微系统与信息技术研究所 | Non-magnetic Dewar flask electromagnetic shielding property testing method and device |
| CN104849592A (en) * | 2015-05-12 | 2015-08-19 | 中国科学院国家天文台 | Radio telescope broadband electromagnetic shielding effectiveness detection system and detection method thereof |
| CN105022020A (en) * | 2015-07-02 | 2015-11-04 | 国网山东省电力公司电力科学研究院 | RF electromagnetic field and radio immunity test system and method of electric energy meter |
| CN105785166A (en) * | 2016-03-02 | 2016-07-20 | 北京市劳动保护科学研究所 | Transmission device and method for test signals in shielding body, shielding body and test device |
| CN105827358A (en) * | 2016-06-03 | 2016-08-03 | 广州市诚臻电子科技有限公司 | Device and system for shielding effectiveness detection |
Non-Patent Citations (2)
| Title |
|---|
| 李巧燕 等: "低频高性能屏蔽装置的设计", 《太赫兹科学与电子信息学报》 * |
| 解子凤 等: "金属网屏蔽笼屏蔽效能的计算模型及方法", 《清华大学学报（自然科学版）》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cleary et al. | UHF and current pulse measurements of partial discharge activity in mineral oil | |
| Long et al. | Denoising of UHF PD signals based on optimised VMD and wavelet transform | |
| CN102981086B (en) | Analysis and measurement method for electromagnetic radiation of voltage driven radiation source | |
| Riba et al. | Simplification and cost reduction of visual corona tests | |
| Fruth et al. | Partial discharge signal generation transmission and acquisition | |
| Pous et al. | Prediction of the impact of transient disturbances in real-time digital wireless communication systems | |
| Luo et al. | Impulsive noise reduction for transient earth voltage‐based partial discharge using wavelet‐entropy | |
| CN108089075A (en) | The simulating, verifying test device and its method of a kind of shielded cable | |
| Shibuya et al. | Electromagnetic waves from partial discharges in windings and their detection by patch antenna | |
| CN106680757A (en) | Detection device used for spherical enveloped anti-interference digital electric meter and using method of said device | |
| Hoek et al. | Application of the UHF technology to detect and locate partial discharges in liquid immersed transformer | |
| Akiyoshi et al. | Evaluation of low cost piezoelectric sensors for the identification of partial discharges evolution | |
| Aghabarati et al. | Lightning susceptibility analysis of cables in a wind turbine | |
| Bulut et al. | Electromagnetic shielding behavior of different metallic wire-meshes and thin metal plate | |
| Putro et al. | Influence of spacer aperture size on PD-induced electromagnetic wave measured with UHF external sensor in 66 kV GIS model | |
| Park et al. | Frequency spectrum analysis of electromagnetic waves radiated by electric discharges | |
| Rohalin et al. | Features of performing expert researches on electricity meters that have been exposed to radiofrequency electromagnetic radiation | |
| Reader et al. | EMC techniques for a complex project: Karoo Array Telescope | |
| Zhou et al. | Numerical simulation and experimental study of the impact of an early-time HEMP field on an engine speed acquisition system | |
| Kucera et al. | Electromagnetic compatibility and radiation analysis in control room | |
| Miller et al. | Geometrical effects on shielding effectiveness at low frequencies | |
| Higgins et al. | A comparison of theoretical expressions and experimental data for EM penetration through small apertures | |
| Liao et al. | Estimation of High-Altitude Electromagnetic Pulse Coupling onto Power Generation Facility Equipment | |
| Wang et al. | The correlation and an equivalent method of direct current injection (DCI) and high-intensity radiated field (HIRF) on the wire | |
| Mori et al. | A Practical Method of Evaluating the Effectiveness of the Use of a Magneto-dielectric Absorber for Common Mode Suppression on Coaxial Cables |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |