CN108614163A - Distributed electrode type three-dimensional electric field sensor - Google Patents
Distributed electrode type three-dimensional electric field sensor Download PDFInfo
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- CN108614163A CN108614163A CN201810727988.XA CN201810727988A CN108614163A CN 108614163 A CN108614163 A CN 108614163A CN 201810727988 A CN201810727988 A CN 201810727988A CN 108614163 A CN108614163 A CN 108614163A
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- electric field
- distributed
- encapsulating structure
- sensitive unit
- electrode type
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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
- G01R29/12—Measuring electrostatic fields or voltage-potential
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- 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
- G01R29/12—Measuring electrostatic fields or voltage-potential
- G01R29/14—Measuring field distribution
Abstract
Present disclose provides a kind of distributed electrode type three-dimensional electric field sensors, including：Encapsulating structure, electric field-sensitive unit and multiple distributed electrodes；Electric field-sensitive unit is encapsulated in encapsulating structure；Multiple distributed electrodes are uniformly distributed on multiple faces of encapsulating structure；Multiple distributed electrodes are connected with encapsulating structure by insulated column respectively, and multiple distributed electrodes are electrical connected with electric field-sensitive unit respectively.The disclosure is conducive to reduce the volume of three-dimensional electric field sensor, significantly reduces the distortion disturbance to detected space electric field, is advantageously implemented the high-sensitivity measurement of space three-dimensional electric field.
Description
Technical field
This disclosure relates to electric field detection technique field more particularly to a kind of distributed electrode type three-dimensional electric field sensor.
Background technology
Electric field measurement has a very important significance.In meteorological field, earth's surface and upper atmosphere electric field change are monitored, can be obtained
That knows thunder and lightning breeds, develops and occurs information, and important indicator is provided for Lightning Warning, to be the aircraft such as guided missile and satellite
It launches and important safety guarantee is provided, also can provide warning information for forest, scenic spot, transmission line of electricity, petrochemical industry refinery；
Electrical network field monitors the electric field near transmission line of electricity and substation etc., can accurately know combined-voltage and phase information, is intelligence
Can grid power transmission state important references are provided, the transmission line of electricity neighbouring electric field strength of the facilities such as private residence nearby is also would know that, for assessment
Electric network electromagnet environment influences to provide foundation；In petrochemical field, human body, equipment, oil gas etc. when static charge accumulation to a certain extent after
It is easy to cause electric discharge, causes the serious safety accident such as fire, explosion, by monitoring electric field, the electrification of assessment electrostatic high risk zone
Situation provides strong support for petrochemical field safety in production.
Electric field is vector, including direction and strength information.In many application fields, the one-dimensional component for only measuring electric field can not
Accurately know field distribution information, be easy to cause larger error.For example, in high-altitude electric field detecting field, aerial electric field is by thunder
Sudden and violent cloud charge influences, and is in distributed in three dimensions feature, and posture is difficult to keep constant when sensor detects in the air, only passes through one-dimensional electricity
Field sensitive structure is difficult to accurately measure the three-dimensional component of electric field, to influence the accuracy of high-altitude electric field detecting result.
Traditional three-dimensional electric field sensor is complicated, of high cost, volume is big.With the development of electric field detection technique, electricity
Field sensor develops towards micromation, integrated direction, and the electric-field sensor for being based especially on nanometer technique has volume
It is small, low in energy consumption, at low cost, convenient for batch micro operations, being easily integrated, working band be wide and the spatial resolution of electric field detecting
Outstanding advantages of high is the important development direction of electric-field sensor, by more and more concerns in the world.However, at present may be used
Microsensor for three-dimensional electric field detection also compares shortage.The micro field sensor of document report is largely only capable of measuring
One-dimensional electric field, and the thinking of three-dimensional electric field measurement is carried out by arranging multiple micro field sensors, system complex is of high cost,
Constrain its extensive use.
Invention content
(1) technical problems to be solved
Present disclose provides a kind of distributed electrode type three-dimensional electric field sensors, at least partly to solve skill set forth above
Art problem.
(2) technical solution
According to one aspect of the disclosure, a kind of distributed electrode type three-dimensional electric field sensor is provided, including：Encapsulation knot
Structure, electric field-sensitive unit and multiple distributed electrodes；Electric field-sensitive unit is encapsulated in encapsulating structure；Multiple distributed electrodes exist
It is uniformly distributed on encapsulating structure；Multiple distributed electrodes are connected with encapsulating structure by insulated column respectively, multiple described points
Cloth electrode is electrical connected with the electric field-sensitive unit respectively.
In some embodiments of the present disclosure, encapsulating structure is cube structure；Multiple distributed electrodes are distributed in encapsulation
On three orthogonal faces of structure；Multiple distributed electricals extremely plane platelet structures.
In some embodiments of the present disclosure, encapsulating structure is column structure；Multiple distributed electrodes are respectively distributed to
The bottom surface and side of encapsulating structure, the distributed electrode in the side of encapsulating structure are uniformly distributed；It is distributed in encapsulating structure bottom surface
The distributed electrical extremely plane platelet structures, be distributed in the distributed electrical extremely cambered surface sheet knot of encapsulating structure side
Structure.
In some embodiments of the present disclosure, encapsulating structure is orbicule structure；Multiple distributed electrodes are evenly distributed on
Encapsulating structure surface；Multiple distributed electricals extremely cambered surface laminated structure.
In some embodiments of the present disclosure, electric field-sensitive unit is multiple, and multiple electric field-sensitive units are in the same envelope
In assembling structure, the distributed electrode being located on the same encapsulating structure and the electric field-sensitive unit being encapsulated in the encapsulating structure
It is connected.
In some embodiments of the present disclosure, electric field-sensitive unit is one, point being located on the same encapsulating structure
Cloth electrode is connected with the electric field-sensitive unit being encapsulated in the encapsulating structure.
In some embodiments of the present disclosure, encapsulating structure includes：Encapsulating housing and cap；Electric field-sensitive unit is fixed
In in encapsulating housing；Cap covers encapsulating housing opening, and encapsulating housing forms accommodating inner cavity with cap.
In some embodiments of the present disclosure, electric field-sensitive unit includes：Signal detection and processing unit, electric field-sensitive list
First shielding case, supplying cell and switch；Signal detection and processing unit, for carrying out output signal in electric field-sensitive unit
Amplification and demodulation；Supplying cell, for the power supply of electric field-sensitive unit and the signal detection in electric field-sensitive unit and processing unit
Power supply；Switch, the power supply break-make for controlling electric field-sensitive unit.
In some embodiments of the present disclosure, signal detection includes with processing unit：Sensor module and interface module；It passes
Sensor component includes：Electric-field sensor, temperature sensor, humidity sensor, baroceptor, GPS positioning module, ozone sensing
One or more of device；Interface module includes：In wireless interface, including blue tooth interface, Zigbee interfaces, radio interface
It is one or more of.
(3) advantageous effect
It can be seen from the above technical proposal that disclosure distributed electrode type three-dimensional electric field sensor is at least with beneficial below
One of effect or in which a part：
(1) distributed electrode structure can significantly reduce the distortion disturbance to detected space electric field, be advantageously implemented space
The high-sensitivity measurement of three-dimensional electric field.
(2) distributed electrode structure is conducive to the volume for reducing three-dimensional electric field sensor.
(3) setting of single electric field-sensitive unit is applied without knowing in electric field three-component concrete numerical value, is contributed to
The assembling for simplifying three-dimensional electric field sensor, reduces the cost of three-dimensional electric field sensor.
Description of the drawings
Fig. 1 is the schematic diagram of first embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.
Fig. 2 is the schematic diagram of second embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.
Fig. 3 is the schematic diagram of third embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.
Fig. 4 is the schematic diagram of fourth embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.
【Embodiment of the present disclosure main element symbol description in attached drawing】
11,11 ', 11 ", 21,21 ', 21 ", 31,31 ', 31 ", 41,41 ', 41 "-distributed electrodes；
12,22,32,42- encapsulating structures；
43- insulated columns.
Specific implementation mode
Present disclose provides a kind of distributed electrode type three-dimensional electric field sensors, including：Encapsulating structure, electric field-sensitive unit and
Multiple distributed electrodes；Electric field-sensitive unit is encapsulated in encapsulating structure；Multiple distributed electrodes are in multiple faces of encapsulating structure
On be uniformly distributed；Multiple distributed electrodes are connected with encapsulating structure by insulated column respectively, multiple distributed electrodes respectively with electricity
Field sensitive unit is electrical connected.The disclosure is conducive to reduce the volume of three-dimensional electric field sensor, significantly reduces to detected space electricity
The distortion disturbance of field, is advantageously implemented the high-sensitivity measurement of space three-dimensional electric field.
To make the purpose, technical scheme and advantage of the disclosure be more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
Disclosure some embodiments will be done with reference to appended attached drawing in rear and more comprehensively describe to property, some of but not complete
The embodiment in portion will be shown.In fact, the various embodiments of the disclosure can be realized in many different forms, and should not be construed
To be limited to this several illustrated embodiment；Relatively, these embodiments are provided so that the disclosure meets applicable legal requirement.
In first exemplary embodiment of the disclosure, a kind of distributed electrode type three-dimensional electric field sensor is provided.Fig. 1
For the schematic diagram of first embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.As shown in Figure 1, disclosure distributed electrode type
Three-dimensional electric field sensor, including：Encapsulating structure 12, electric field-sensitive unit and multiple distributed electrodes.Encapsulating structure 12 is hollow
Hexahedron structure, electric field-sensitive unit is encapsulated in encapsulating structure 12；Distributed electrode 11, distributed electrode 11 ' and distribution
Formula electrode 11 " is distributed in rectangular co-ordinate, by insulated column, three faces orthogonal with encapsulating structure 12 are connected respectively；Multiple points
Cloth electrode is plane platelet structures.Multiple distributed electrodes are electrical connected with electric field-sensitive unit respectively simultaneously.When electric field is quick
It is one to feel unit, and the distributed electrode being located on the same encapsulating structure is quick with the electric field that is encapsulated in the encapsulating structure
Feel unit to be connected；When electric field-sensitive unit is multiple, multiple electric field-sensitive units in the same encapsulating structure, are located in same
Distributed electrode on a encapsulating structure can be connected with the electric field-sensitive unit being encapsulated in the encapsulating structure.
Each component part of the present embodiment distributed electrode type three-dimensional electric field sensor is described in detail individually below.
Encapsulating structure is supported distributed electrode for protecting electric field-sensitive unit, and by insulated column.The envelope
Assembling structure includes：Encapsulating housing and cap.Cap covers encapsulating housing opening, and encapsulating housing is formed with cap in accommodating
Chamber, electric field-sensitive unit are fixed on intracavitary in accommodating.In the case where carrying out the low temperature environments such as high-altitude electric field detecting in application, encapsulating structure
Accommodating inner cavity can be with materials such as filled and process, to be kept the temperature to internal electric field-sensitive unit.
Electric field-sensitive unit, for perceiving tested electric field strength.Here electric field-sensitive unit can be based on different sensitivities
Mechanism.Resonant mode electric field-sensitive unit, vibration type electric-field sensing unit, optics based on micro electro mechanical system (MEMS) technology can such as be selected
Formula electric field-sensitive unit or other kinds of electric field-sensitive unit.The electric field-sensitive unit includes：Signal detection and processing unit,
Electric field-sensitive unit shielding case, supplying cell and switch.Signal detection and processing unit, for being amplified to output signal and
Demodulation.The signal detection includes with processing unit：Sensor module and interface module.Sensor module, including electric-field sensor,
One or more of temperature sensor, humidity sensor, baroceptor, GPS positioning module, ozone sensor.But not only
It is limited to the sensor, the necessary function for including can also be needed to be added according to when different field is applied.Interface module,
It is one or more of wireless interface, including blue tooth interface, Zigbee interfaces, radio interface to emit sensor signal
It goes out.Supplying cell, for powering for each component in the electric field-sensitive unit including signal detection and processing unit；It can be with
Select dry cell, lithium battery, lead-acid battery or bubble battery etc..Switch, the power supply for controlling the electric field-sensitive unit are logical
It is disconnected.
Distributed electrode, material can be metal material such as iron, copper, aluminium etc.；It may be insulator-coating metallic paint
Or insulating materials pastes conductive film；The shape of distributed electrode is rectangle, circle, arc-shaped or any other needs shape.
Certainly, according to actual needs, disclosure distributed electrode type three-dimensional electric field sensor also includes other components, this
Place repeats no more.
In second exemplary embodiment of the disclosure, a kind of distributed electrode type three-dimensional electric field sensor is provided.Fig. 2
For the schematic diagram of second embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.As shown in Fig. 2, point with first embodiment
Cloth electric pole type three-dimensional electric field sensor is compared, the present embodiment distributed electrode type three-dimensional electric field sensor difference lies in：
Encapsulating structure 22 is column structure；Multiple distributed electrodes are distributed in cylindrical coordinates, distributed electrode 21, distribution
Formula electrode 21 ' and distributed electrode 21 " it is connected respectively with the bottom surface of encapsulating structure 22 and side, it is equal in the side of encapsulating structure 22
The even multiple distributed electrodes of distribution.The distributed electrical extremely plane platelet structures of 22 bottom surface of encapsulating structure are distributed in, envelope is distributed in
The distributed electrical of 22 side of assembling structure extremely cambered surface laminated structure.
In order to achieve the purpose that brief description, any technical characteristic narration for making same application in above-mentioned first embodiment
All and in this, without repeating identical narration.
In the third exemplary embodiment of the disclosure, a kind of distributed electrode type three-dimensional electric field sensor is provided.Fig. 3
For the schematic diagram of third embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.As shown in figure 3, point with first embodiment
Cloth electric pole type three-dimensional electric field sensor is compared, the present embodiment distributed electrode type three-dimensional electric field sensor difference lies in：
Encapsulating structure 32 is orbicule structure；Distributed electrode 31, distributed electrode 31 ' and distributed electrode 31 are " in ball
In coordinate, it is evenly distributed on encapsulating structure surface；Multiple distributed electricals extremely cambered surface laminated structure.
In order to achieve the purpose that brief description, any technical characteristic narration for making same application in above-mentioned first embodiment
All and in this, without repeating identical narration.
In the 4th exemplary embodiment of the disclosure, a kind of distributed electrode type three-dimensional electric field sensor is provided.Fig. 4
For the schematic diagram of fourth embodiment of the present disclosure distributed electrode type three-dimensional electric field sensor.As shown in figure 4, point with first embodiment
Cloth electric pole type three-dimensional electric field sensor is compared, the present embodiment distributed electrode type three-dimensional electric field sensor difference lies in：
Encapsulating structure 42 is multi-panel cube structure；Distributed electrode 41, distributed electrode 41 ' and distributed electrode 41 "
It is evenly distributed on encapsulating structure surface；Each distributed electrode is connected with encapsulating structure 42 by insulated column 43.
In order to achieve the purpose that brief description, any technical characteristic narration for making same application in above-mentioned first embodiment
All and in this, without repeating identical narration.
So far, attached drawing is had been combined the embodiment of the present disclosure is described in detail.It should be noted that in attached drawing or saying
In bright book text, the realization method for not being painted or describing is form known to a person of ordinary skill in the art in technical field, and
It is not described in detail.In addition, the above-mentioned definition to each element and method be not limited in mentioning in embodiment it is various specific
Structure, shape or mode, those of ordinary skill in the art simply can be changed or replaced to it.
According to above description, those skilled in the art should have clearly disclosure distributed electrode type three-dimensional electric field sensor
The understanding of Chu.
In conclusion the disclosure is conducive to reduce the volume of three-dimensional electric field sensor, significantly reduce to detected space electric field
Distortion disturbance, be advantageously implemented the high-sensitivity measurement of space three-dimensional electric field.
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, not is used for limiting the protection domain of the disclosure.Through attached drawing, identical element by
Same or similar reference numeral indicates.When that understanding of this disclosure may be caused to cause to obscure, conventional structure will be omitted
Or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only illustrate the embodiment of the present disclosure
Content.In addition, in the claims, any reference mark between bracket should not be configured to the limit to claim
System.
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 content of this disclosure.Specifically, all be used in specification and claim
The number of the middle content for indicating composition, reaction condition etc., it is thus understood that repaiied by the term of " about " in all situations
Decorations.Under normal circumstances, the meaning expressed refers to including by specific quantity ± 10% variation in some embodiments, at some
± 5% variation in embodiment, ± 1% variation in some embodiments, in some embodiments ± 0.5% variation.
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.
The word of specification and ordinal number such as " first ", " second ", " third " etc. used in claim, with modification
Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element
Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used for enabling the element with certain name and another tool
There is the element of identical name that can make clear differentiation.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect,
Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：It is i.e. required to protect
The disclosure of shield requires features more more than the feature being expressly recited in each claim.More precisely, as following
Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific implementation mode are expressly incorporated in the specific implementation mode, wherein each claim itself
All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose, technical solution and advantageous effect of the disclosure
It describes in detail bright, it should be understood that the foregoing is merely the specific embodiment of the disclosure, is not limited to the disclosure, it is all
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (9)
1. a kind of distributed electrode type three-dimensional electric field sensor, including：
Encapsulating structure；
Electric field-sensitive unit is encapsulated in the encapsulating structure；
Multiple distributed electrodes are uniformly distributed on the encapsulating structure；Multiple distributed electrodes respectively with the encapsulation
Structure is connected by insulated column, and multiple distributed electrodes are electrical connected with the electric field-sensitive unit respectively.
2. distributed electrode type three-dimensional electric field sensor according to claim 1,
The encapsulating structure is cube structure；
Multiple distributed electrodes are distributed on three orthogonal faces of the encapsulating structure；Multiple distributed electricals are extremely flat
Face laminated structure.
3. distributed electrode type three-dimensional electric field sensor according to claim 1,
The encapsulating structure is column structure；
Multiple distributed electrodes are respectively distributed to the bottom surface and side of the encapsulating structure, in the side of the encapsulating structure
Distributed electrode be uniformly distributed；The distributed electrical extremely plane platelet structures of the encapsulating structure bottom surface are distributed in, point
The distributed electrical extremely cambered surface laminated structure of the cloth in the encapsulating structure side.
4. distributed electrode type three-dimensional electric field sensor according to claim 1,
The encapsulating structure is orbicule structure；
Multiple distributed electrodes are evenly distributed on the encapsulating structure surface；Multiple distributed electricals extremely cambered surface sheet
Structure.
5. distributed electrode type three-dimensional electric field sensor according to claim 1,
The electric field-sensitive unit is multiple, and multiple electric field-sensitive units are located in the same encapsulating structure
Distributed electrode on the same encapsulating structure is connected with the electric field-sensitive unit being encapsulated in the encapsulating structure.
6. distributed electrode type three-dimensional electric field sensor according to claim 1,
The electric field-sensitive unit be one, the distributed electrode being located on the same encapsulating structure be encapsulated in this
The electric field-sensitive unit in encapsulating structure is connected.
7. distributed electrode type three-dimensional electric field sensor according to any one of claims 1 to 6, the encapsulating structure include：
Encapsulating housing, the electric field-sensitive unit are fixed in the encapsulating housing；
Cap, covers the encapsulating housing opening, and the encapsulating housing forms accommodating inner cavity with the cap.
8. distributed electrode type three-dimensional electric field sensor according to any one of claims 1 to 6, the electric field-sensitive unit packet
It includes：
Signal detection and processing unit, for output signal to be amplified and demodulated in the electric field-sensitive unit；
Electric field-sensitive unit shielding case；
Supplying cell is supplied for the signal detection in electric field-sensitive unit power supply and electric field-sensitive unit with processing unit
Electricity；
Switch, the power supply break-make for controlling the electric field-sensitive unit.
9. distributed electrode type three-dimensional electric field sensor according to claim 8, the signal detection include with processing unit：
Sensor module, including it is electric-field sensor, temperature sensor, humidity sensor, baroceptor, GPS positioning module, smelly
One or more of lambda sensor；
One or more of interface module, including wireless interface, including blue tooth interface, Zigbee interfaces, radio interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810727988.XA CN108614163A (en) | 2018-07-04 | 2018-07-04 | Distributed electrode type three-dimensional electric field sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810727988.XA CN108614163A (en) | 2018-07-04 | 2018-07-04 | Distributed electrode type three-dimensional electric field sensor |
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| CN108614163A true CN108614163A (en) | 2018-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021107776A1 (en) * | 2019-11-27 | 2021-06-03 | Fnv Ip B.V. | Electric field gradient sensor |
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|---|---|---|---|---|
| DE19647830A1 (en) * | 1996-11-19 | 1998-05-20 | Hubertus Maschek | Field sensor for measuring magnetic and/or electric fields |
| JP2009156661A (en) * | 2007-12-26 | 2009-07-16 | Shibaura Institute Of Technology | Three dimensional electric field sensor |
| CN204065245U (en) * | 2014-07-25 | 2014-12-31 | 武汉三江中电科技有限责任公司 | A kind of three-dimensional field test instrument and the distributed field strength measurement device of multinode |
| CN208443927U (en) * | 2018-07-04 | 2019-01-29 | 中国科学院电子学研究所 | Distributed electrode type three-dimensional electric field sensor |
-
2018
- 2018-07-04 CN CN201810727988.XA patent/CN108614163A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19647830A1 (en) * | 1996-11-19 | 1998-05-20 | Hubertus Maschek | Field sensor for measuring magnetic and/or electric fields |
| JP2009156661A (en) * | 2007-12-26 | 2009-07-16 | Shibaura Institute Of Technology | Three dimensional electric field sensor |
| CN204065245U (en) * | 2014-07-25 | 2014-12-31 | 武汉三江中电科技有限责任公司 | A kind of three-dimensional field test instrument and the distributed field strength measurement device of multinode |
| CN208443927U (en) * | 2018-07-04 | 2019-01-29 | 中国科学院电子学研究所 | Distributed electrode type three-dimensional electric field sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021107776A1 (en) * | 2019-11-27 | 2021-06-03 | Fnv Ip B.V. | Electric field gradient sensor |
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