CN207780101U - Non-contact voltage transducer system - Google Patents
Non-contact voltage transducer system Download PDFInfo
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- CN207780101U CN207780101U CN201720926196.6U CN201720926196U CN207780101U CN 207780101 U CN207780101 U CN 207780101U CN 201720926196 U CN201720926196 U CN 201720926196U CN 207780101 U CN207780101 U CN 207780101U
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Abstract
The utility model discloses a kind of non-contact voltage transducer systems, are related to voltage detecting technical field.The utility model proposes sensing system include range finder module or spacing module, electric-field sensor, measurement and telecommunication circuit.Wherein, range finder module or spacing module are fixed together with electric-field sensor, and for determining the distance between electric-field sensor and measured object, the voltage of measured object is calculated by the output result and measuring distance of electric-field sensor.
Description
Technical field
The utility model is related to voltage monitoring technical field more particularly to non-contact voltage transducer systems.
Background technology
Voltage monitoring is using very extensive.In fields such as oil, petrochemical industry, industrial productions, by monitoring inflammable and explosive danger
Product and its condenser voltage, can know that dangerous material carry electrostatic situation in time, and early warning and connection are carried out for the exceeded phenomenon of electrostatic
Dynamic control avoids even igniting dangerous material because static discharge ignites.By monitoring human body and equipment voltage, and to voltage over standard feelings
Condition early warning prompts human body release electrostatic, equipment ground in time, can also avoid static discharge that precision circuit is caused to damage, is inflammable
The accidents such as explosive equal dangerous material are on fire.In electrical network field, transmission line of electricity and the voltage of related electric equipment are monitored, electricity can be reacted
The real-time running state of net provides master data for electric power allotment, fault diagnosis.
Contactless voltage monitoring can avoid measured object to instrument and human body discharge, have convenient test, to measured object
Influence the advantages that small, test process is safe.The electric field near measured object is measured by electric-field sensor, can be realized to measured object
The measurement of voltage, especially with the progress of electric field sensor technology, miniaturization, micromation electric-field sensor are contactless electricity
Providing convenience property of pressure monitoring.However, only charging electric field near object by measurement, its voltage condition can not be accurately known, it is former
Because being, the test result of electric-field sensor is not only related with measured object voltage, also related to measuring distance, test environment.
Utility model content
(1) technical problems to be solved
The utility model proposes a kind of non-contact voltage transducer system to promote the precision of contactless voltage monitoring
System, introduces the critical components such as electric-field sensor, range finder module.The electric-field strength near electrical body is tested by electric-field sensor
Degree, distance between the two is tested by range finder module, to calculate the electrified voltage of measured object.
(2) technical solution
A kind of non-contact voltage transducer system, including measure and telecommunication circuit and electric-field sensor, the measurement and
Telecommunication circuit is connect with electric-field sensor；The electric-field sensor is for measuring electric field strength；The measurement and telecommunication circuit are used
In the output signal for acquiring and handling electric-field sensor, tested electrification object electrified voltage is obtained.
Further include spacing module in some exemplary embodiments of the utility model, it is described measurement and telecommunication circuit with
Spacing module connects；The spacing module is described for measuring or limiting the distance between electric-field sensor and tested electrification object
Measurement and telecommunication circuit are used to acquire and handle the output signal of spacing module, obtain tested electrification object electrified voltage.
Further include induction electrode and probing shell in some exemplary embodiments of the utility model；It is described apart from mould
Block and electric-field sensor are arranged inside probing shell, the induction electrode be arranged outside probing shell and with probing shell it
Between fixed using dielectric isolation layer, the induction electrode is connect with electric-field sensor by conducting wire, for by the sense of induction electrode
Answer charge-conduction to electric-field sensor surface.
In some exemplary embodiments of the utility model, the spacing module is range finder module, for measuring electric field
The distance between sensor and tested electrification object, the range finder module is fixed on electric-field sensor front end or side.
In some exemplary embodiments of the utility model, the range finder module includes ultrasonic distance measuring module, laser
Range finder module or infrared distance measurement module.
In some exemplary embodiments of the utility model, wherein the spacing module is spacing module, for determining
It is pre-determined distance between electric-field sensor and measured object, the spacing module is fixed on electric-field sensor front end or side.
In some exemplary embodiments of the utility model, the spacing module is laser module, including at least two
Luminescence unit, the light beam that described two luminescence units are sent out hot spot at pre-determined distance overlap.
In some exemplary embodiments of the utility model, the probing shell opens up window, for making spacing module
The signal export sent out；And/or the induction electrode opens up window, the signal export for making spacing module send out.
In some exemplary embodiments of the utility model, the electric-field sensor is electrostatic field sensor or alternating current
Field sensor.
In some exemplary embodiments of the utility model, the electric-field sensor limits a measured zone, by measuring tape
The motion path of electric object is at least partly fallen in the measured zone；The electric-field sensor is used to measure the electric field of tested electrification object
Intensity is simultaneously transmitted to measurement and telecommunication circuit；The measurement and telecommunication circuit are used to receive the electric field strength, and according to measurement
The calibration parameter that the maximum distance of electrification object and electric-field sensor is tested in region carries out voltage tester, when the electricity of electric-field sensor
When field intensity is more than threshold value, sends out tested electrification object and charge exceeded warning information.
(3) advantageous effect
It can be seen from the above technical proposal that the non-contact voltage transducer system of the utility model is with beneficial below
Effect：
(1) measuring distance parameter is introduced, the accurate inverting under a variety of measuring distances is enabled the sensor to and is tested voltage, be not necessarily to
Worry the error that measuring distance introduces；
(2) compared with conventional vibration capacitance-type no touch electrostatic pressure table, the utility model is avoided without closed-loop feedback circuit
It discharges caused by feedback electrode itself band high-voltage electricity dangerous, use is safer, conveniently.
Description of the drawings
Fig. 1 is the variable-metric according to the utility model first embodiment apart from non-contact voltage transducer system section
Schematic diagram.
Fig. 2 is to limit measuring distance non-contact voltage transducer system according to the optics of the utility model second embodiment
Diagrammatic cross-section.
Fig. 3 is the restriction test space non-contact voltage transducer system structure according to the utility model 3rd embodiment
Schematic diagram.
Wherein：
1- induction electrodes, 2- dielectric isolation layers, 3- range finder modules, 4- electric-field sensors, 5- probing shells, 6- probe wires,
7- is measured and telecommunication circuit, 8- laser modules, face where 9- light beams convergent point, 10- electric-field sensors, the tested electrification object phases of 11-
To motion path, the starting point of measured zone on A- motion paths, the terminal of measured zone on B- motion paths, in d- measured zones
The full test distance of electric-field sensor and tested electrification object.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with specific embodiment, and
With reference to attached drawing, the utility model is described in further detail.
A kind of non-contact voltage transducer system of variable-metric distance is provided in the utility model first embodiment.
Fig. 1 is the diagrammatic cross-section of the system, please refers to Fig. 1, which includes：Induction electrode 1, dielectric isolation layer 2, ranging
Module 3, electric-field sensor 4, probing shell 5, probe wire 6 and measurement and communication unit 7.
Wherein, range finder module 3 is rigidly fixed together with electric-field sensor 4, thereby may be ensured that range finder module can be accurate
Really measure the distance between electric-field sensor and tested electrification object.
Range finder module 3 is ultrasonic distance measuring module, laser ranging module, infrared distance measurement module etc., is fixed on electric field sensing
4 front end of device or side (being front end in Fig. 1), to avoid distance measuring signal from being blocked by electric-field sensor 4.
Electric-field sensor 4 is electrostatic field sensor or AC electric field sensor, for measuring electric field strength, including field mill
Formula, capacitance-type vibration formula, electronic switch type, optical profile type, condenser type, MEMS formula electric-field sensor etc..For using micro-nano
The micro mechanical structure chip that rice processing technology is prepared, it usually needs encapsulating package is disposed.Electric-field sensor 4 can be with
Including signal amplification circuit, to extend signal transmission distance.
Induction electrode 1 is connected between electric-field sensor 4 using conducting wire in 5 front end of probing shell, thus by induction electrode
On charge inducing be transmitted to 4 surface of electric-field sensor.Electric-field sensor can be avoided directly to expose using the electric pole type structure
Outside, to avoid electric-field sensor from damaging, the environmental suitability of lifting system.Under normal circumstances, induction electrode 1 be it is round,
Rounded square, spherical shape etc., and fillet or obtuse angle processing are carried out at sharp keen place, avoid generation point discharge in test process existing
As.Induction electrode 1 can be metal material or semi-conducting material.
It is fixed using dielectric isolation layer 2 between induction electrode 1 and probing shell 5, fixed form can be screw thread or screw
It is fixed, the modes such as gluing, riveting can also be used.Probing shell 5 is used to accommodate range finder module 3 and electric-field sensor 4, material are
Metal or semi-conducting material, with connecing circuit signal.
Window is opened up in the front end of induction electrode 1 and probing shell 5, the distance measuring signal for making range finder module 3 send out is led
Logical, window can be trepanning, the materials such as glass can also be used suitably to be sealed.
Induction electrode 1, dielectric isolation layer 2, range finder module 3, electric-field sensor 4 and probing shell 5 form test probe,
In the present embodiment, measures and communication unit 7 passes through probe wire 6 and 4 phase of range finder module 3 and electric-field sensor in test probe
Even, for giving the two power supply, and the output signal of range finder module 3 and electric-field sensor 4 is acquired, handles, in conjunction with calibration coefficient
Calculate measured object electrified voltage situation.It measures and communication unit 7 can also include that display screen is used to show test result and report
Alert information, signal output port further include battery for exporting the measurement result calculated to apparatus such as computer, are used
In giving non-contact voltage transducer system power supply.
It should be noted that the test probe of the present embodiment and measurement and the discrete setting of communication unit, in practical application
The two can be processed into integral structure.
A kind of non-contact voltage transducer of optics restriction measuring distance is provided in the utility model second embodiment
System.Referring to Fig. 2, difference lies in be changed to spacing by the range finder module 3 for being fixed on electric-field sensor 4 with first embodiment
Module 8.The spacing module includes at least two luminescence unit, can the outgoing laser beam to outside probe simultaneously, face where light beam convergent point
9 be tested surface, wherein luminescence unit can be laser light source.In the appropriate trepanning of induction electrode 1 and 5 front end of probing shell, it is fixed to make
It can be pierced by away from the light beam that module is sent out.
When test, test probe need to be placed perpendicular to tested surface 9, the distance between adjustment probe and tested surface 9 make two
The hot spot of light beams overlaps, and makes to reach pre-determined distance between test probe and tested surface.The output of electric-field sensor is read, and is joined
Examine electric-field sensor the pre-determined distance calibrating parameters, you can calculate by the voltage of side.
It should be noted that second embodiment provide optical method limit measuring distance in practical applications can also
Using the method for other restriction distances.For example, being cancelled later with by the distance between side using gage test probe before test
Gage measures.To be popped one's head in using fixture and be fixed together with measured object, be after fixed, between probe and measured object known to away from
From.In addition, the distance limited can be multiple, there are different calibration parameters for different measuring distances.
The utility model proposes 3rd embodiment provide it is a kind of limit the test space contactless voltage sensor
Device system.For there are relative motion situations, test probe possibly can not be directed at quilt in time between measured object and test sensor
Object is surveyed, so that it is determined that distance between the two.A kind of contactless voltage sensor limiting the test space provided in this embodiment
Device system is a kind of non-contact voltage transducer early warning system, opposite for existing between tested electrification object and voltage sensor
The case where movement, including the electric-field sensor 10 of interconnection and measurement and communication unit, electric-field sensor is for measuring electric field
Intensity, and the measured zone of electric-field sensor is defined, the motion path of tested electrification object is at least partly fallen in measured zone.When
The motion path 11 of tested electrification object passes through measured zone, measures and communication unit acquires and handles the output letter of electric-field sensor
Number.There are full test distance d between tested electrification object and non-contact voltage transducer in measured zone.
In test process, tested electrification object is moved along path, and electric-field sensor measures the electric-field strength of tested electrification object
Measurement and communication unit, measurement and communication unit received electric field strength are spent and are transmitted to, according to d pairs above-mentioned of full test distance
Electric field strength is calibrated, and carries out voltage calculating according to the calibration parameter of full test distance d.When the detection of electric-field sensor
As a result it is more than threshold value, that is, thinks that measured object electrification is exceeded, measures and communication unit sends out tested electrification object and charges exceeded early warning
Information.
Its principle is, when distance is farthest between measured object and electric-field sensor 10, the electric field that sensor detects is minimum,
If the minimum value is exceeded, you can judgement measured object electrification is exceeded.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction of refer to the attached drawing, is not used for limiting the scope of protection of the utility model.Through attached drawing, identical member
Element is indicated by same or similar reference numeral.When that may cause to cause to obscure to the understanding of the utility model, will omit
Conventional structure or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only the utility model are illustrated to implement
The content of example.In addition, in the claims, any reference mark between bracket should not be configured to claim
Limitation.
It unless there are known entitled phase otherwise anticipates, the numerical parameter in this specification and appended claims is approximation, energy
Enough required characteristic changings according to as obtained by the content of the utility model.Specifically, all be used in specification and right
The number of content, reaction condition of composition etc. is indicated in it is required that, it is thus understood that be the term by " about " in all situations
It is modified.Under normal circumstances, express meaning refer to comprising by specific quantity ± 10% variation in some embodiments,
± 5% variation in some embodiments, ± 1% variation in some embodiments, in some embodiments ± 0.5% change
Change.
Furthermore word "comprising" does not exclude the presence of element or step not listed in the claims.Before element
Word "a" or "an" does not exclude the presence of multiple such elements.
In addition, unless specifically described or the step of must sequentially occur, there is no restriction in the above institute for the sequence of above-mentioned steps
Row, and can change or rearrange according to required design.And above-described embodiment can be based on the considerations of design and reliability, that
This mix and match is used using or with other embodiment mix and match, i.e., the technical characteristic in different embodiments can be freely combined
Form more embodiments.
Similarly, it should be understood that in order to simplify the utility model and help to understand one in each utility model aspect
Or it is multiple, above in the description of the exemplary embodiment of the utility model, each feature of the utility model is sometimes by one
It rises and is grouped into single embodiment, figure or descriptions thereof.However, the method for the utility model should not be construed to instead
Reflect following intention：The requires of the utility model i.e. claimed is more than the feature being expressly recited in each claim
Feature.More precisely, as reflected in the following claims, it is in terms of utility model practical less than front
All features of novel single embodiment.Therefore, it then follows thus claims of specific implementation mode are expressly incorporated in this
Specific implementation mode, wherein separate embodiments of each claim as the utility model itself.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, are not limited to this reality
With novel, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all include
It is within the protection scope of the utility model.
Claims (8)
1. a kind of non-contact voltage transducer system, including measurement and telecommunication circuit and electric-field sensor, described to measure and lead to
Letter circuit is connect with electric-field sensor；
The electric-field sensor is for measuring electric field strength；
The measurement and telecommunication circuit are used to acquire and handle the output signal of electric-field sensor, obtain tested electrification object electrification electricity
Pressure.
Wherein, the non-contact voltage transducer system further includes spacing module, it is described measurement and telecommunication circuit with apart from mould
Block connects；The spacing module for measuring or limiting the distance between electric-field sensor and tested electrification object, the measurement and
Telecommunication circuit is used to acquire and handle the output signal of spacing module, obtains tested electrification object electrified voltage；
The non-contact voltage transducer system further includes induction electrode and probing shell；The spacing module and electric field sensing
Device is arranged inside probing shell, the induction electrode be arranged outside probing shell and between probing shell using insulation every
Absciss layer is fixed, and the induction electrode is connect with electric-field sensor by conducting wire, for the charge inducing of induction electrode to be transmitted to
Electric-field sensor surface.
2. non-contact voltage transducer system as described in claim 1, wherein the spacing module is range finder module, is used
In measuring the distance between electric-field sensor and tested electrification object, the range finder module is fixed on electric-field sensor front end or side
Face.
3. non-contact voltage transducer system as claimed in claim 2, wherein the range finder module includes ultrasonic ranging
Module, laser ranging module or infrared distance measurement module.
4. non-contact voltage transducer system as described in claim 1, wherein the spacing module is spacing module, is used
It is pre-determined distance in determining between electric-field sensor and measured object, the spacing module is fixed on electric-field sensor front end or side
Face.
5. non-contact voltage transducer system as claimed in claim 4, wherein the spacing module is laser module, packet
At least two luminescence units are included, the light beam that described two luminescence units are sent out hot spot at pre-determined distance overlaps.
6. non-contact voltage transducer system as described in claim 1, wherein the probing shell opens up window, is used for
Make the signal export that spacing module is sent out；And/or
The induction electrode opens up window, the signal export for making spacing module send out.
7. non-contact voltage transducer system as described in claim 1, wherein the electric-field sensor senses for electrostatic field
Device or AC electric field sensor.
8. non-contact voltage transducer system as described in claim 1, wherein
The electric-field sensor limits a measured zone, and the motion path of tested electrification object is at least partly fallen in the measurement zone
Domain；
The electric-field sensor is used to measure the electric field strength of tested electrification object and is transmitted to measurement and telecommunication circuit；
The measurement and telecommunication circuit are passed for receiving the electric field strength, and according to electrification object is tested in measured zone with electric field
The calibration parameter of the maximum distance of sensor carries out voltage tester, when the electric field strength of electric-field sensor is more than threshold value, send out by
Measuring tape electricity object charges exceeded warning information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720926196.6U CN207780101U (en) | 2017-07-27 | 2017-07-27 | Non-contact voltage transducer system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720926196.6U CN207780101U (en) | 2017-07-27 | 2017-07-27 | Non-contact voltage transducer system |
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| CN207780101U true CN207780101U (en) | 2018-08-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192873A (en) * | 2017-07-27 | 2017-09-22 | 北京中科飞龙传感技术有限责任公司 | Non-contact voltage transducer system |
| CN109557357A (en) * | 2018-12-27 | 2019-04-02 | 国网江苏省电力有限公司电力科学研究院 | Contactless voltage surveys recording device, system and method |
| CN113687289A (en) * | 2021-09-24 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Measuring and self-calibrating method and system of non-contact type miniature voltage sensor |
| CN114441837A (en) * | 2022-04-06 | 2022-05-06 | 南方电网数字电网研究院有限公司 | Voltage measurement method and device based on double-shaft electric field sensing chip |
-
2017
- 2017-07-27 CN CN201720926196.6U patent/CN207780101U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192873A (en) * | 2017-07-27 | 2017-09-22 | 北京中科飞龙传感技术有限责任公司 | Non-contact voltage transducer system |
| CN109557357A (en) * | 2018-12-27 | 2019-04-02 | 国网江苏省电力有限公司电力科学研究院 | Contactless voltage surveys recording device, system and method |
| CN109557357B (en) * | 2018-12-27 | 2024-02-02 | 国网江苏省电力有限公司电力科学研究院 | Non-contact voltage measuring and recording device, system and method |
| CN113687289A (en) * | 2021-09-24 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Measuring and self-calibrating method and system of non-contact type miniature voltage sensor |
| CN113687289B (en) * | 2021-09-24 | 2023-09-19 | 广西电网有限责任公司电力科学研究院 | Measurement and self-calibration method and system of non-contact miniature voltage sensor |
| CN114441837A (en) * | 2022-04-06 | 2022-05-06 | 南方电网数字电网研究院有限公司 | Voltage measurement method and device based on double-shaft electric field sensing chip |
| CN114441837B (en) * | 2022-04-06 | 2022-07-12 | 南方电网数字电网研究院有限公司 | Voltage measurement method and device based on double-shaft electric field sensing chip |
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