CN105510854B - A kind of calibrating installation of space charge density measuring device - Google Patents
A kind of calibrating installation of space charge density measuring device Download PDFInfo
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- CN105510854B CN105510854B CN201510869793.5A CN201510869793A CN105510854B CN 105510854 B CN105510854 B CN 105510854B CN 201510869793 A CN201510869793 A CN 201510869793A CN 105510854 B CN105510854 B CN 105510854B
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- space charge
- charge density
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- 238000009434 installation Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
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- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 15
- 238000012216 screening Methods 0.000 abstract description 4
- 238000010227 cup method (microbiological evaluation) Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
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- 238000004458 analytical method Methods 0.000 description 2
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The present invention provides a kind of calibrating installation of space charge density measuring device, and the calibrating installation includes power supply, top crown, bottom crown, insulating supporting column, arc lamp, galvanometer, platform and fan；The anode and cathode of power supply are separately connected bottom crown and top crown by conducting wire, and top crown and bottom crown are supported by insulating supporting column, and galvanometer is arranged on the conducting wire between the cathode of power supply and top crown；Arc lamp is placed on the edge of bottom crown, and fan is located above arc lamp, the platform of placement space determining charge density equipment between top crown and bottom crown.The present invention has that clear principle, structure are simple, low cost, safe and convenient to use, calibration range is wide, and the characteristics of be suitable for the calibration of variety classes space charge density measuring device；It is mainly used for the calibration based on Ion Counting method, faraday cup method, charge screening method, probe array method space charge density measuring device.
Description
Technical field
The present invention relates to a kind of calibrating installations, and in particular to a kind of calibrating installation of space charge density measuring device.
Background technique
Total electric field under DC power transmission line is an important parameter of DC power transmission line electromagnetic environment, direct current transportation
The a part of the electric field that the ion that line corona generates is formed as formate field intensity, the influence to synthesis field intensity value are very big.To grind
Study carefully the relationship between the space charge density under China's particular surroundings and ground total electric field, need to the charge density in space into
Row measurement.However, China and not setting up corresponding measurement standard, the correctness and confidence level to its measurement data test and are
Very necessary.
The prior art mainly generates charge vs spatial determining charge density equipment by corona method and is calibrated, but this method
Need using high-voltage power supply and easily generate ozone, safety is poor, welding.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of calibration cartridge of space charge density measuring device
It sets, the accuracy and credibility for the surveyed space charge density of analysis space determining charge density equipment.
In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme that:
The present invention provides a kind of calibrating installation of space charge density measuring device, the calibrating installation include power supply, on
Pole plate, bottom crown, insulating supporting column, arc lamp, galvanometer, platform and fan；
The anode and cathode of the power supply are separately connected bottom crown and top crown by conducting wire, and top crown and bottom crown pass through
The support of insulating supporting column, the galvanometer are arranged on the conducting wire between the cathode of power supply and top crown；The arc lamp is placed
At the edge of bottom crown, the fan is located above arc lamp, placement space charge density between the top crown and bottom crown
The platform of measuring device.
The top crown and bottom crown are square, and the edge of the two is arc surface, to reduce edge effect.
By four insulating supporting column supports between the top crown and bottom crown, four insulating supporting columns are separately fixed at
On four angles of top crown and bottom crown.
The material that the insulating supporting column uses is nylon or polytetrafluoroethylene (PTFE).
The material that the top crown uses is metallic zinc, and the material that the bottom crown uses is copper.
The arc lamp irradiating angle is adjustable, and irradiated area is located on top crown, and irradiated area is imitated due to photoelectricity
Electronics should be generated, electronics forms space charge in conjunction with the molecule in air.
The platform is placed far from fan；
There are two the fan is set, for space charge to be blowed to space charge density measuring device.
If the electric current between the top crown and bottom crown of galvanometer measurement is I, the distance between top crown and bottom crown are
D, the area of irradiated area are S, and the voltage between top crown and bottom crown is U, and space charge density indicates are as follows:
Wherein, ρ is space charge density, and k is the mobility of space charge, and e indicates elementary charge, takes 1.6 × 10-19C。
Compared with the immediate prior art, technical solution provided by the invention is had the advantages that
1) calibrating installation of space charge density measuring device provided by the invention, is mainly used for analysis space charge density
The accuracy and credibility of the surveyed space charge density of measuring device；
2) the calibrating installation clear principle, structure of space charge density measuring device provided by the invention be simple, low cost,
It is safe and convenient to use, calibration range is wide, and be not easy to cause edge effect；
3) calibrating installation of space charge density measuring device provided by the invention is mainly used for based on Ion Counting method, method
Draw the calibration of the space charge density measuring device of cage method, charge screening method, probe array method.
Detailed description of the invention
Fig. 1 is the calibrating installation structure chart of Space-charge densitometer of the embodiment of the present invention；
In figure, 1- power supply, 2- top crown, 3- bottom crown, 4- insulating supporting column, 5- arc lamp, the irradiated area 6-, 7- inspection
Flowmeter, 8- platform, 9- fan.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The present invention provides the calibrating installations based on photoelectric space charge density measuring device, to make up China's mesh
Before there is no the shortcoming of charge density calibrator (-ter) unit.Using arc light light irradiation top crown, when the frequency of incident light is more than a certain limit
The metal surface of frequency, light irradiation will escape photoelectron immediately, i.e. generation photoelectric effect.It powers up to be formed outside metal
Electric current can be formed after closed circuit.According to photon it is assumed that the intensity of incident light is decided by that the unit time passes through unit area
Number of photons increase in the unit time when incident intensity increases by the number of photons of metal surface, then, photon with it is golden
Electron collision number in category also increases, thus in the unit time from metal surface escape photoelectron also increase, electric current also with
Increase.By adjusting the intensity of incident light, the adjusting of space charge density can be realized.
The present invention provides a kind of calibrating installation of space charge density measuring device, such as Fig. 1, and the calibrating installation includes electricity
Source 1, top crown 2, bottom crown 3, insulating supporting column 4, arc lamp 5, galvanometer 7, platform 8 and fan 9；
The anode and cathode of the power supply 1 are separately connected bottom crown 3 and top crown 2, top crown 2 and bottom crown by conducting wire
3 are supported by insulating supporting column 4, and the galvanometer 7 is arranged on the conducting wire between the cathode of power supply 1 and top crown 2；The arc
Light lamp 5 is placed on the edge of bottom crown 3, and the fan 9 is located at 5 top of arc lamp, puts between the top crown 2 and bottom crown 3
Empty a platform for determining charge density equipment 8.
The top crown 2 and bottom crown 3 are square, and the edge of the two is arc surface, to reduce edge effect.
It is supported between the top crown 2 and bottom crown 3 by four insulating supporting columns 4, four insulating supporting columns 4 are solid respectively
It is scheduled on four angles of top crown 2 and bottom crown 3.
The material that the insulating supporting column 4 uses is nylon or polytetrafluoroethylene (PTFE).
The material that the top crown 2 uses is metallic zinc, and the material that the bottom crown 3 uses is copper.
5 irradiating angle of arc lamp is adjustable, and irradiated area 6 is located on top crown 2, and irradiated area 6 is due to light
Electrical effect generates electronics, and electronics forms space charge in conjunction with the molecule in air.
The platform 8 is placed far from fan 9；
There are two the fan 9 is set, for space charge to be blowed to space charge density measuring device.
If galvanometer 7 measure top crown 2 and bottom crown 3 between electric current be I, between top crown 2 and bottom crown 3 away from
It is S from the area for d, irradiated area 6, the voltage between top crown 2 and bottom crown 3 is U, and space charge density indicates are as follows:
Wherein, ρ is space charge density, and k is the mobility of space charge, and e indicates elementary charge, takes 1.6 × 10-19C。
Embodiment 1
It is carried out using the space charge measurement equipment of calibrating installation of the invention to ion counter method or charge screening method
Calibration.
Power supply uses controllable direct current power supply, and voltage positive and negative anodes are coupled with bottom crown and top crown by conducting wire, is formed
Standard electric field；With arc light light irradiation top crown, irradiated area generates electronics, and electronics is transported to bottom crown under the action of electric field force
Dynamic, electron and molecule combines and forms anion in movement；Galvanometer deflection situation is observed, after galvanometer yaw stabilization, is opened
The space charge measurement equipment of ion counter method or charge screening method in dextral platform measures between top crown and bottom crown
Charge density (negative ion density), and then be compared and calibrate with standard value.
Embodiment 2
Using calibrating installation of the invention to the space charge measurement equipment Alignment based on faraday cup method.
Unlike example 1: the space charge density measuring instrument based on faraday cup method of the present embodiment can not
Charge is pumped into space charge measurement equipment, needs that ion is blowed to space charge measurement equipment by external blower fan, from
And it is calibrated.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field can still modify to a specific embodiment of the invention referring to above-described embodiment or
Equivalent replacement, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent replacement
Within bright claims.
Claims (6)
1. a kind of calibrating installation of space charge density measuring device, it is characterised in that: the calibrating installation includes power supply, upper pole
Plate, bottom crown, insulating supporting column, arc lamp, galvanometer, platform and fan；
The anode and cathode of the power supply are separately connected bottom crown and top crown by conducting wire, and top crown and bottom crown pass through insulation
Support column support, the galvanometer are arranged on the conducting wire between the cathode of power supply and top crown；The arc lamp is placed on down
The edge of pole plate, the fan are located above arc lamp, placement space determining charge density between the top crown and bottom crown
The platform of equipment；
The arc lamp irradiating angle is adjustable, and irradiated area is located on top crown, and irradiated area is produced due to photoelectric effect
Raw electronics, electronics form space charge in conjunction with the molecule in air；
If the electric current between the top crown and bottom crown of galvanometer measurement is I, the distance between top crown and bottom crown are d, quilt
The area of irradiation area is S, and the voltage between top crown and bottom crown is U, and space charge density indicates are as follows:
Wherein, ρ is space charge density, and k is the mobility of space charge, and e indicates elementary charge, takes 1.6 × 10-19C。
2. the calibrating installation of space charge density measuring device according to claim 1, it is characterised in that: the top crown
It is square with bottom crown, the edge of the two is arc surface, to reduce edge effect.
3. the calibrating installation of space charge density measuring device according to claim 1 or 2, it is characterised in that: on described
By four insulating supporting column supports between pole plate and bottom crown, four insulating supporting columns are separately fixed at top crown and bottom crown
Four angles on.
4. the calibrating installation of space charge density measuring device according to claim 3, it is characterised in that: the insulation branch
The material that dagger uses is nylon or polytetrafluoroethylene (PTFE).
5. the calibrating installation of space charge density measuring device according to claim 1 or 2, it is characterised in that: on described
The material that pole plate uses is metallic zinc, and the material that the bottom crown uses is copper.
6. the calibrating installation of space charge density measuring device according to claim 1, it is characterised in that: the platform is remote
It is placed from fan；
There are two the fan is set, for space charge to be blowed to space charge density measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510869793.5A CN105510854B (en) | 2015-12-02 | 2015-12-02 | A kind of calibrating installation of space charge density measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510869793.5A CN105510854B (en) | 2015-12-02 | 2015-12-02 | A kind of calibrating installation of space charge density measuring device |
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| Publication Number | Publication Date |
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| CN105510854A CN105510854A (en) | 2016-04-20 |
| CN105510854B true CN105510854B (en) | 2019-02-15 |
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| CN201510869793.5A Active CN105510854B (en) | 2015-12-02 | 2015-12-02 | A kind of calibrating installation of space charge density measuring device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569161B (en) * | 2016-10-12 | 2019-09-17 | 中国电力科学研究院 | A kind of calibrating installation of space charge density measuring instrument |
| CN106568893B (en) * | 2016-10-14 | 2019-04-23 | 中国电力科学研究院 | A kind of device and its circuit system for air ion measuring instrument calibration |
| CN114200222A (en) * | 2021-11-13 | 2022-03-18 | 国网辽宁省电力有限公司阜新供电公司 | High-voltage direct-current transmission line space charge measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917161A (en) * | 2005-08-18 | 2007-02-21 | 中国科学院半导体研究所 | Method for determining charge density of semiconductor quanta point through photo capacitance method |
| CN101551294A (en) * | 2009-04-30 | 2009-10-07 | 中国科学院上海技术物理研究所 | Method for detecting surface leakage channel of semiconductor detection device under illumination |
| CN103091567A (en) * | 2013-02-05 | 2013-05-08 | 南京信息工程大学 | Instrument and method for space electric charge density measurement |
| CN103513119A (en) * | 2013-10-18 | 2014-01-15 | 河北大学 | Method and device for measuring charge density distribution on surface of rotating roll of electrostatic sorting machine |
| CN203490299U (en) * | 2013-08-29 | 2014-03-19 | 华北电力大学 | Space charge density measuring apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201120307D0 (en) * | 2011-11-24 | 2012-01-04 | Thermo Fisher Scient Bremen | High duty cycle mass spectrometer |
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- 2015-12-02 CN CN201510869793.5A patent/CN105510854B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917161A (en) * | 2005-08-18 | 2007-02-21 | 中国科学院半导体研究所 | Method for determining charge density of semiconductor quanta point through photo capacitance method |
| CN101551294A (en) * | 2009-04-30 | 2009-10-07 | 中国科学院上海技术物理研究所 | Method for detecting surface leakage channel of semiconductor detection device under illumination |
| CN103091567A (en) * | 2013-02-05 | 2013-05-08 | 南京信息工程大学 | Instrument and method for space electric charge density measurement |
| CN203490299U (en) * | 2013-08-29 | 2014-03-19 | 华北电力大学 | Space charge density measuring apparatus |
| CN103513119A (en) * | 2013-10-18 | 2014-01-15 | 河北大学 | Method and device for measuring charge density distribution on surface of rotating roll of electrostatic sorting machine |
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| CN105510854A (en) | 2016-04-20 |
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