CN206270007U - A kind of spatial resolution test board of electroluminescent defect detector - Google Patents
A kind of spatial resolution test board of electroluminescent defect detector Download PDFInfo
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- CN206270007U CN206270007U CN201621424511.7U CN201621424511U CN206270007U CN 206270007 U CN206270007 U CN 206270007U CN 201621424511 U CN201621424511 U CN 201621424511U CN 206270007 U CN206270007 U CN 206270007U
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- spatial resolution
- striped
- electroluminescent
- detection square
- test board
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model provides a kind of electroluminescent defect detector spatial resolution test board, a plurality of detection square groups are distributed with the spatial resolution test board, each detection square group includes a plurality of with the not collinear detection square to width of fringe, each detection square is made up of the line that a plurality of black and white are spaced to striped, the different detection square group interior lines are different to the direction of striped, the same detection square group interior lines are identical to the direction of striped, each line is the same to the width of black and white strip in striped, the spatial resolution test board has near infrared light penetrability.The utility model can be realized detecting the spatial resolution of electroluminescent defect detector.
Description
Technical field
The utility model is related to electroluminescent defect detector technical field of measurement and test, more particularly to a kind of electroluminescent defect
The spatial resolution test board of detector.
Background technology
Electroluminescent detector (EL detectors) is that the photovoltaic cell is checked by the electroluminescent of photovoltaic cell component
Component splits with the presence or absence of hidden, and main realization means are to carry out image checking using near infrared camera, and its spatial resolution is this
The most important index of EL detector performances, spatial resolution is also commonly referred to as spatial resolution, represents the resolution to space characteristics
Ability, but there is presently no suitable method of testing, there is not the imaging for photovoltaic cell component EL defect detectors also
The specification of calibration test can be carried out.In conventional Visible Light Camera imaging resolution field, international standard ISO12233 refer to
Camera is carried out using resolution test plate to take pictures the resolution test of imaging and the design of standard pattern, but the method is mainly pin
Imaging to Visible Light Camera detects, is directed to commercial camera, such as film camera, digital camera.These measuring technologies
Mainly applying in visible light wave band, and be test for resolution test plate needs to be carried out under certain lighting condition.
For electroluminescent defect detector, its operating spectral wave band is near-infrared, and resolution test plate cannot send near red in itself
Outer light, therefore the method is not suitable for the direct assessment of electroluminescent defect detector.
The Chinese invention of Publication No. CN1741622A disclosed in 1 day March in 2006, relate to a kind of digital image point
Resolution test chart and preparation method thereof, the invention is the resolution ratio that camera lens is measured with the method for striped imaging, but the hair
The measurement that the bright measuring appliance (camera lens) for being directed to visible ray is carried out, and the utility model is directed to the electroluminescent hair of photovoltaic cell component
The measurement of optical defect detector, what is mainly assessed is the equipment resolution capability of near infrared band, and application field and image-forming principle are not
Together.
The Chinese invention of Publication No. CN102156037A, is related to a kind of optical detection disclosed on 08 17th, 2011
Device and detection method, the invention are made with the difference of the nearest and farthest object plane position of the firm spatial frequency values that can differentiate license
It is the depth of field of the camera lens, this is identical to test the principle of its resolving power to striped using line with the utility model, i.e., by institute's energy
The minimum value of resolution is used as quantitative basis.But the invention is the test for entering line definition by way of guide rail is movable, and
The utility model is then the minimum value that the line successively decreased by a packet size finds its resolution to striped.
The Chinese utility model of Publication No. CN203551480U disclosed on 04 16th, 2014, the utility model is related to
And a kind of photovoltaic module electroluminescent defect detecting system, the utility model and the utility model are all to use photovoltaic cell component
Electroluminescent reach measurement purpose.But measurement purpose is different, and this utility model describes the principle of electroluminescent detection,
That is to say by the electroluminescent of photovoltaic cell component that the problems such as whether photovoltaic cell component has hidden splitting checked, be only referred to point
The requirement of resolution, without being related to the method for testing of resolution ratio, and the utility model is by the electroluminescent hair of photovoltaic cell component
Light finally detects the resolving power of defect detector.
Need to detect the spatial resolution of photovoltaic cell component EL defect detectors at this stage, confirm the inspection of EL defects
Survey whether instrument reaches photovoltaic industry Production requirement, for the improvement of photovoltaic cell component production technology provides guiding foundation, to open
The research of exhibition electroluminescent detection method provides effective equipment guarantee.Therefore, it is necessary to invent a kind of convenient and swift, quantifiable side
Method is detected to the spatial resolution of EL defect detectors.
The content of the invention
The technical problems to be solved in the utility model, is to provide a kind of spatial resolution of electroluminescent defect detector
Test board, is capable of achieving to detect the spatial resolution of electroluminescent defect detector.
What problem of the present utility model was realized in：
A kind of spatial resolution test board of electroluminescent defect detector, is distributed with the spatial resolution test board
A plurality of detection square groups, each detection square group include it is a plurality of with the not collinear detection square to width of fringe,
Each detection square is made up of the line that a plurality of black and white are spaced to striped, and the different detection square group interior lines are to striped
Direction is different, and the same detection square group interior lines are identical to the direction of striped, width of each line to black and white strip in striped
Degree is the same, and the spatial resolution test board has near infrared light penetrability.
Further, the detection square group interior lines include horizontal direction, vertical direction and oblique 45 ° to the direction of striped
Direction.
Further, the scope of the single width of fringe during the line is to striped is 0.1mm~2.0mm.
Further, it is each it is described detection square group in it is a plurality of described detection square in single width of fringe according to etc.
Rule than sequence or arithmetic sequence is distributed.
The utility model has the following advantages that：The utility model can realize the spatial discrimination to electroluminescent defect detector
Power is detected whether confirmation EL defect detectors reach photovoltaic industry Production requirement, realize the quantization of measurement result and comment
The standardization of valency index, it is easy to operate, as a result easily manifest, for the improvement of photovoltaic cell component production technology provide directiveness according to
According to for development electroluminescent detection method research provides effective equipment guarantee；Can be empty in the limited operation of EL defect detectors
It is interior that its spatial resolution is tested, and the operation such as need not be dismantled, carried to EL defect test instrument, tie at the scene
Closing normal photovoltaic cell component detection process can just complete spatial resolution test, with easy, quick, intuitively excellent
Point, the technical problem underlying of solution is exactly the near-infrared luminous and image checking problem of spatial resolution test board.
Brief description of the drawings
The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the knot of embodiment one in a kind of spatial resolution test board of electroluminescent defect detector of the utility model
Structure schematic diagram.
Fig. 2 is the knot of embodiment two in a kind of spatial resolution test board of electroluminescent defect detector of the utility model
Structure schematic diagram.
Fig. 3 is the equipment used in a kind of spatial discrimination force test method of electroluminescent defect detector of the utility model
Combination diagram.
Fig. 4 is the space used in a kind of spatial discrimination force test method of electroluminescent defect detector of the utility model
Resolution test plate paste position.
Label declaration in figure：
1- spatial resolutions test board, 2- photovoltaic cell components, 21- cell pieces, 3- constant-current supplies, 4- electroluminescent defects
Detector, 5- darkrooms, 6- displays, 7- double faced adhesive tapes.
Specific embodiment
To cause that the utility model becomes apparent, now with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
A kind of spatial resolution test board of electroluminescent defect detector of the present utility model, the spatial resolution is surveyed
A plurality of detection square groups are distributed with test plate (panel) 1, each detection square group includes a plurality of with not collinear wide to striped
The detection square of degree, each detection square is made up of the line that a plurality of black and white are spaced to striped, the different detection squares
Group interior lines are different to the direction of striped, and the same detection square group interior lines are identical to the direction of striped, and each line is to striped
The width of interior black and white strip is the same, and the spatial resolution test board 1 has near infrared light penetrability.
The detection square group interior lines include horizontal direction, vertical direction and oblique 45 ° of directions to the direction of striped.
The scope of the striped line width is 0.1mm~2.0mm.
In a plurality of described detection square in each detection square group single width of fringe according to geometric sequence or
The rule distribution of person's arithmetic sequence.
Embodiment one：
As shown in figure 1, four detection square groups, each detection side are distributed with the spatial resolution test board 1
Block group includes a plurality of detection squares with different striped line widths, and each detection square is by the black of a plurality of identical line widths
White septal line is constituted to striped, and the different detection square group interior lines are different to the direction of striped, the same detection square group
Interior lines are identical to the direction of striped, and the detection square group interior lines are respectively horizontal direction, vertical direction, a left side to the direction of striped
Oblique 45 ° of directions and right oblique 45 ° of directions；The line to striped in single width of fringe scope be 0.25mm~1.0mm,
And the striped line width between a plurality of described detection square in each detection square group is arranged in gradual change；The space point
Distinguish that power test board 1 has near infrared light penetrability.
Embodiment two：
As shown in Fig. 2 two detection square groups, each detection side are distributed with the spatial resolution test board 1
Block group includes a plurality of detection squares with different striped line widths, and each detection square is by the black of a plurality of identical line widths
White septal line is constituted to striped, and the different detection square group interior lines are different to the direction of striped, the same detection square group
Interior lines are identical to the direction of striped, and the detection square group interior lines are respectively horizontal direction and vertical direction to the direction of striped；
The line to striped in single width of fringe scope be 0.1mm~2.0mm, and it is each it is described detection square group in plural number
Single width of fringe is distributed according to the rule of geometric sequence or arithmetic sequence in the individual detection square；The spatial resolution
Test board 1 has near infrared light penetrability.In Fig. 2, using visual distinguishable minimum line to as resolution ratio Appreciation gist,
Unit is " line is to every millimeter " (lp/mm), and the numeral mark in figure represents every millimeter of demand pairs amount (N), corresponding single bar
Streakline (D) wide is：D=1/2N.
Operation principle of the present utility model is as follows：
As shown in Figure 3 and Figure 4, a kind of spatial resolution test board of electroluminescent defect detector of the present utility model is
For the spatial resolution of testing electroluminescent defect detector.Photovoltaic cell component 2 is carried out using electroluminescent detector 4
During detection, five spatial resolution test boards 1 are respectively adhered on the photovoltaic cell group with double faced adhesive tape 7 (or adhesive tape)
On the cell piece 21 of the center of part 2 and four corner locations, photovoltaic cell component 2 is in electroluminescent defect detector 4
In darkroom 5, positive energization is then carried out to photovoltaic cell component 2 by the constant-current supply 3, so as to excite photovoltaic cell component
Battery in 2 generation electroluminescent effects, namely photovoltaic cell component 2 can be sent with 1150nm as peak under forward current effect
The near infrared light of value wavelength (by taking crystalline silicon as an example), the light afterwards can be by spatial discrimination by spatial resolution test board 1
The pattern of power test board 1 is shown on the display 6, so as to can be sentenced to the readability of striped by the line in the pattern
The detectability of disconnected EL detectors 4, so as to assess the spatial resolution of the EL detectors 4.
Advantage of the present utility model is as follows：
The utility model can realize detecting the spatial resolution of electroluminescent defect detector 4, confirm EL defects
Whether detector 4 reaches photovoltaic industry Production requirement, realizes the quantization of measurement result and the standardization of evaluation index, operation side
Just, as a result easily manifest, for the improvement of the production technology of photovoltaic cell component 2 provides guiding foundation, to carry out electroluminescent inspection
Survey technique study and effective equipment guarantee is provided；Can be in the limited operating space of EL defect detectors 4 to its spatial resolution
Tested, and the operation such as need not be dismantled, carried to EL defect tests instrument 4, at the scene with reference to normal photovoltaic cell
The detection process of component 2 can just complete spatial resolution test, with easy, quick, intuitively advantage, the major technique of solution
Problem is exactly the near-infrared luminous and image checking problem of spatial resolution test board 1.
Although the foregoing describing specific embodiment of the present utility model, those familiar with the art should
Work as understanding, the specific embodiment described by us is merely exemplary, rather than for the limit to scope of the present utility model
Fixed, those of ordinary skill in the art should in the equivalent modification and change made according to spirit of the present utility model
Cover in scope of the claimed protection of the present utility model.
Claims (4)
1. a kind of spatial resolution test board of electroluminescent defect detector, it is characterised in that：The spatial resolution test
Be distributed with a plurality of detection square groups on plate, each detection square group include it is a plurality of with not collinear to width of fringe
Detection square, each detection square is made up of the line that a plurality of black and white are spaced to striped, in the different detection square groups
Line is different to the direction of striped, and the same detection square group interior lines are identical to the direction of striped, and each line is to black in striped
The width of informal voucher line is the same, and the spatial resolution test board has near infrared light penetrability.
2. the spatial resolution test board of a kind of electroluminescent defect detector according to claim 1, it is characterised in that：
The detection square group interior lines include horizontal direction, vertical direction and oblique 45 ° of directions to the direction of striped.
3. the spatial resolution test board of a kind of electroluminescent defect detector according to claim 1, it is characterised in that：
The line to striped in single width of fringe scope be 0.1mm~2.0mm.
4. the spatial resolution test board of a kind of electroluminescent defect detector according to claim 1, it is characterised in that：
Single width of fringe is according to geometric sequence or equal difference sequence in a plurality of described detection square in each detection square group
The rule distribution of row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621424511.7U CN206270007U (en) | 2016-12-23 | 2016-12-23 | A kind of spatial resolution test board of electroluminescent defect detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621424511.7U CN206270007U (en) | 2016-12-23 | 2016-12-23 | A kind of spatial resolution test board of electroluminescent defect detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206270007U true CN206270007U (en) | 2017-06-20 |
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ID=59047867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621424511.7U Active CN206270007U (en) | 2016-12-23 | 2016-12-23 | A kind of spatial resolution test board of electroluminescent defect detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN206270007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768888A (en) * | 2016-12-23 | 2017-05-31 | 福建省计量科学研究院 | The spatial resolution test board and method of testing of a kind of electroluminescent defect detector |
| CN110177264A (en) * | 2019-06-03 | 2019-08-27 | 歌尔股份有限公司 | Clarity detection method and detection device |
-
2016
- 2016-12-23 CN CN201621424511.7U patent/CN206270007U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768888A (en) * | 2016-12-23 | 2017-05-31 | 福建省计量科学研究院 | The spatial resolution test board and method of testing of a kind of electroluminescent defect detector |
| CN106768888B (en) * | 2016-12-23 | 2023-05-02 | 福建省计量科学研究院 | Space resolution test board and test method of electroluminescence defect detector |
| CN110177264A (en) * | 2019-06-03 | 2019-08-27 | 歌尔股份有限公司 | Clarity detection method and detection device |
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