CN106323228A - Four-quadrant silicon photocell with monitoring code inside - Google Patents
Four-quadrant silicon photocell with monitoring code inside Download PDFInfo
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- CN106323228A CN106323228A CN201610822336.5A CN201610822336A CN106323228A CN 106323228 A CN106323228 A CN 106323228A CN 201610822336 A CN201610822336 A CN 201610822336A CN 106323228 A CN106323228 A CN 106323228A
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- code
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- silicon photocell
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 49
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 42
- 239000010703 silicon Substances 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 239000004020 conductor Substances 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 3
- 238000001459 lithography Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 abstract description 8
- 238000004088 simulation Methods 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 description 15
- 108091092878 Microsatellite Proteins 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 241001424688 Enceliopsis Species 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004899 motility Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000000205 computational method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
-
- 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
Abstract
The invention provides a four-quadrant silicon photocell with a monitoring code inside. The four-quadrant silicon photocell comprises a light receiving face and a shady face, the light receiving face is composed of detection codes positioned at four corners, the monitoring code positioned in the middle of the detection codes and an electrode lead light current signals of each code channel, the shady face serves as a ground wire area shared by light current of each code channel and is led out through an electrode lead. Sunlight penetrates a mask glass light passing hole and irradiates onto the light receiving face of the silicon photocell. When the sunlight irradiates by different vector angles, the code channels are different in irradiated area and output light current different in amplitude, and the light current is led out through the electrode lead. By collecting the light current of each code channel, the four-quadrant silicon photocell can be used for solar vector biaxial azimuth angle detection and field-of-view border indication. The novel four-quadrant silicon photocell can be used for building a biaxial-simulation solar sensor, brings more convenience to building a field-of-view border while meeting requirements of biaxial solar vector angle detection, is flexible in algorithm and reliable in application and has wide application prospect.
Description
Technical field
The present invention relates to a kind of four-quadrant silicon cell monitoring that code is built-in, belong in spacecraft GNC system analog too
Sun sensor technical field.
Background technology
Sun sensor can be used for detecting the spacecraft body connected firmly mutually with sun sensor relative to solar vector
Orientation, to determine the attitude of spacecraft, it is adaptable to the satellite of all kinds of tracks, airship and the rail control system of detector, sail
The tasks such as plate orientation, are measurement parts important in spacecraft GNC system.
Microsatellite have light weight, volume is little, the lead time is short, mobility strong, transmitting flexibly, can form into columns the spies such as networking
Point, has the using value of uniqueness in dual-use new and high technology, is developed rapidly in recent years.With conventional satellite phase
With, GNC system is the important leverage of each functional realiey of microsatellite platform.And owing to position of sun is moderate, sun sensor is easy
In realizing miniaturization and low-power consumption, highly reliably solar vector angle can be carried out high precision test, it is adaptable to the sail of microsatellite
The multiple-tasks such as plate orientation, Satellite Attitude Determination, become one of most attitude sensor of microsatellite GNC system application.
Analog sun sensor based on light cell photovoltaic property is in small size, low-power consumption, low cost, Gao Gengxin rate etc.
Aspect tool has great advantage, and current analog sun sensor is mostly based on A/B type silicon cell, is only capable of measuring the single shaft sun
Azimuth, and the index such as sensor volume, quality, visual field and precision all can not meet the growth requirement that spacecraft is growing,
The particularly development of microsatellite, is applied to propose severe challenge.
Summary of the invention
The technology of the present invention solves problem: the defect existed for existing analog sun sensor, it is proposed that a kind of
Monitor the four-quadrant silicon cell that code is built-in, can be used for building the analog sun sensor of dual-axis miniature, can be in the big visual field of twin shaft
In the range of realize the high-acruracy survey at solar vector angle, and there is visual field instruction function, have that algorithm is easy, feature flexibly,
Existing analog sun sensor can be realized function replacement, and can fully meet Future Satellite platform microminaturization, intellectuality
Development trend, be with a wide range of applications.
The technical solution of the present invention is: a kind of four-quadrant silicon cell monitoring that code is built-in, including sensitive surface and non-
Sensitive surface；
Described sensitive surface includes detecting code district, monitoring code district, collecting zone and contact conductor；Detection code district is square,
Being evenly dividing in foursquare detection code district is four quadrants, makes four independent same areas of same size by lithography in detection code district
Detection code, respectively first detection code, second detection code, the 3rd detection code, the 4th detection code；Adjacent two detect codes it
Between be laid with rectangle monitoring code, left monitoring code, lower monitoring code, right monitoring code respectively, wherein monitor the length of code and detection code
The length of side is identical, monitors the wide less than the 1/4 of the detection code length of side of code；
Collecting zone is positioned at the outside of four detection codes, is divided into multiple sub-collecting zone, detects codes and four with four respectively
Monitoring code-phase connects, the photoelectric current exported under light illumination for collection four detection codes and four monitoring codes, and is passed through by photoelectric current
The contact conductor being connected with each sub-collecting zone is drawn；
Described non-illuminated surface is the public ground region of the photoelectric current of four detection codes and four monitoring codes；Non-illuminated surface
Public ground region drawn by contact conductor.
Present invention advantage compared with prior art is:
(1) four-quadrant silicon cell of the present invention, is provided with four detection codes and four monitoring codes, can realize the sun
Vector two axle is azimuthal to be measured simultaneously, and has visual field border instruction function；
(2) four-quadrant silicon cell of the present invention, is based respectively on detection code and the photoelectric current of monitoring code output,
Realize the detection of solar vector angle and visual field indicates, improve the motility of described silicon cell application；
(3) detection of different azimuths and the visual field of four-quadrant silicon cell of the present invention indicates and can mutually test between algorithm
Card, improves the reliability of described silicon cell application.
Accompanying drawing explanation
Fig. 1 is to monitor the four-quadrant silicon cell code channel schematic layout pattern that code is built-in；
Fig. 2 is to monitor the four-quadrant silicon cell application principle that code is built-in；
The projection that Fig. 3 is mask glass light hole on the sensitive surface monitoring the built-in four-quadrant silicon cell of code.
Detailed description of the invention
The Research Thinking of the present invention is, sunray pass through mask glass light hole, silicon cell four detection code and
The projection of four monitoring codes is different, and then produces different photoelectric currents, and the relation between photoelectric current and solar vector two axle orientation
It is correlated with in angle.By gathering the photoelectric current of each code, the solar vector two azimuthal resolving of axle can be realized, and carry out visual field border and refer to
Show.Based on this, the present invention proposes the four-quadrant silicon cell monitoring that code is built-in.
The four-quadrant silicon cell that the present invention proposes, can realize that solar vector two axle is azimuthal to be measured simultaneously, and has
Visual field border instruction function, and it is based respectively on detection code and the photoelectric current of monitoring code output, all can realize the detection of solar vector angle
Indicate with visual field, can be mutually authenticated between algorithms of different, improve reliability and the motility of described silicon cell application further.
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings:
Fig. 1 is to monitor the built-in four-quadrant silicon cell quadrant schematic layout pattern of code, and wherein, 1～4 are respectively first～the
Four detection codes, 5～8 go up, left, down, right monitors code respectively, and 9 is collecting zone.
Fig. 2 is to monitor the four-quadrant silicon cell application principle that code is built-in.
The present invention proposes a kind of four-quadrant silicon cell monitoring that code is built-in, including: include sensitive surface and non-illuminated surface,
As shown in Figure 1；
Sensitive surface, including detection code district, monitoring code district, collecting zone and contact conductor；Detection code district is square, by pros
It is four quadrants that the detection code district of shape is evenly dividing, and makes the detection with area of four independent same sizes by lithography in detection code district
Code, the respectively first detection code 1, second detects code the 2, the 3rd detection code the 3, the 4th and detects code 4；Detect between code at adjacent two
It is respectively provided with monitoring code 5, left monitoring code 6, lower monitoring code 7, right monitoring code 8；Wherein monitor the length of code and the limit of detection code
Long identical, monitor the wide less than the 1/4 of the detection code length of side of code；
Collecting zone 9 is positioned at detection code 1～4, the outside of monitoring code 5～8, is divided into polylith, respectively with four detection codes 1～4
Be connected with four monitoring codes 5～8, it is possible to collect corresponding detection code 1～4 or monitor the photoelectricity that code 5～8 exports under light illumination
Stream, and photoelectric current is drawn by the contact conductor being connected with each collecting zone；
Non-illuminated surface is the public ground region of the photoelectric current of four detection codes 1～4 and four monitoring codes 5～8；Non-light
The public ground region in face is drawn by contact conductor.
Based on described four-quadrant silicon cell and mask glass, may make up the analog sun sensor of twin shaft, it is achieved too
The detection of sun vector twin shaft azimuth and visual field border indicate.Wherein, the mask glass back side is provided with square light hole, and and silicon
Light cell sensitive surface is parallel and has certain distance along sensitive surface normal direction, meanwhile, and light hole center and silicon cell light
Face center alignment, light hole both sides are parallel, as shown in Figure 2 with silicon cell sensitive surface both sides.
Sunray incides on the sensitive surface of silicon cell through mask glass light hole, causes four inspections of silicon cell
Surveying code 1～4, four monitoring codes 5～8 produce photoelectric current, photoelectric current is drawn through silicon cell contact conductor；
Under solar irradiation, by gathering four detection codes 1～4 and the photoelectric current of four monitoring code 5～8 outputs, can count
Calculate two axle azimuths of solar vector, and carry out visual field border instruction.
Based on described four-quadrant silicon cell, two axle solar vector angle computational methods are as follows,
In above formula, α, β are respectively solar vector angle.Setting up coordinate system OXYZ, definition initial point O is positioned at silicon cell center,
Upwards, OX axle is pointed to right monitoring code 8 by left monitoring code 6 to OZ axle vertical silicon light cell sensitive surface, and OY axle is pointed to by lower monitoring code 7
Monitoring code 5.Solar vector projection in XOZ plane and Z axis angle are α angle, and light is when-X direction incidence, and α is just；Definition
Projection in YOZ plane and Z axis angle are β angle, and light is when-Y direction incidence, and β is just.I1～I4It is respectively first～the 4th
Detecting the photoelectric current of code output, detection code, monitoring code, mask glass light hole are respectively the region of a × a, a × b, d × d, and e is
Detection code and the spacing of monitoring intersymbol, h is mask glass light hole and silicon cell sensitive surface spacing.As shown in Figure 3.
Based on described four-quadrant silicon cell, sun sensor visual field border instruction algorithm is as follows,
WhenTime, αmin≤α≤αmax；
WhenTime, βmin≤α≤βmax；
Wherein, IU、ID、IL、IRCode, lower monitoring code, left monitoring code, the photoelectric current of right monitoring code output is monitored on Fen Bieweiing,
αmin、αmax、βmin、βmaxIt is respectively the field range in sun sensor α, β direction.Understand, by calculating IR/IL、IU/ID, and with
Respective threshold compares, and i.e. can determine whether whether solar vector angle is positioned at sensor visual field.
Based on described four-quadrant silicon cell, two axle solar vector angles also can use method calculated as below,
Based on described four-quadrant silicon cell, the instruction of sun sensor visual field border also can use following algorithm,
WhenTime, αmin≤α≤αmax；
WhenTime, βmin≤α≤βmax；
The present invention can be used for building the analog sun sensor of twin shaft, has that solar vector two axle is azimuthal to be detected simultaneously
And visual field instruction function, algorithm is versatile and flexible, and application is reliable, is with a wide range of applications.
Non-elaborated part of the present invention belongs to techniques well known.
Claims (2)
1. the four-quadrant silicon cell monitoring that code is built-in, it is characterised in that: include sensitive surface and non-illuminated surface；
Described sensitive surface includes detecting code district, monitoring code district, collecting zone and contact conductor；Detection code district is square, will just
It is four quadrants that square detection code district is evenly dividing, and makes the inspection with area of four independent same sizes by lithography in detection code district
Survey code, the respectively first detection code (1), the second detection code (2), the 3rd detection code (3), the 4th detection code (4)；At adjacent two
Rectangle monitoring code (5), left monitoring code (6), lower monitoring code (7), right monitoring code (8) it is laid with respectively between detection code；
Collecting zone (9) is positioned at the outside of four detection codes, is divided into multiple sub-collecting zone, respectively with four detection codes and four prisons
Survey code-phase even, for the photoelectric current collecting four detection codes and four monitoring codes export under light illumination, and by photoelectric current by with
The contact conductor that each sub-collecting zone connects is drawn；
Described non-illuminated surface is the public ground region of the photoelectric current of four detection codes and four monitoring codes；The public affairs of non-illuminated surface
Property-line region is drawn by contact conductor.
A kind of four-quadrant silicon cell monitoring that code is built-in the most according to claim 1, it is characterised in that: described supervision
The length of code is identical with the length of side of detection code, monitors the wide less than the 1/4 of the detection code length of side of code.
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| CN201610822336.5A CN106323228B (en) | 2016-09-13 | 2016-09-13 | A kind of four-quadrant silicon photocell built in monitoring code |
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| CN201610822336.5A CN106323228B (en) | 2016-09-13 | 2016-09-13 | A kind of four-quadrant silicon photocell built in monitoring code |
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| CN106323228A true CN106323228A (en) | 2017-01-11 |
| CN106323228B CN106323228B (en) | 2019-06-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908067A (en) * | 2017-03-24 | 2017-06-30 | 李博 | A kind of sun sensor and the method for determining solar vector |
| CN109427923A (en) * | 2017-08-25 | 2019-03-05 | 中国科学院大连化学物理研究所 | A kind of semiconductive thin film four-quadrant optical sensor and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140264700A1 (en) * | 2013-03-13 | 2014-09-18 | The Aerospace Corporation | Monolithic sun sensors, assemblies thereof, and methods of making and using same |
| CN105136140A (en) * | 2015-09-24 | 2015-12-09 | 北京控制工程研究所 | Photoelectric assembly for biaxial miniature analog type sun sensor |
| CN105222776A (en) * | 2015-09-24 | 2016-01-06 | 北京控制工程研究所 | The analog sun sensor of a kind of dual-axis miniature |
-
2016
- 2016-09-13 CN CN201610822336.5A patent/CN106323228B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140264700A1 (en) * | 2013-03-13 | 2014-09-18 | The Aerospace Corporation | Monolithic sun sensors, assemblies thereof, and methods of making and using same |
| CN105136140A (en) * | 2015-09-24 | 2015-12-09 | 北京控制工程研究所 | Photoelectric assembly for biaxial miniature analog type sun sensor |
| CN105222776A (en) * | 2015-09-24 | 2016-01-06 | 北京控制工程研究所 | The analog sun sensor of a kind of dual-axis miniature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908067A (en) * | 2017-03-24 | 2017-06-30 | 李博 | A kind of sun sensor and the method for determining solar vector |
| CN109427923A (en) * | 2017-08-25 | 2019-03-05 | 中国科学院大连化学物理研究所 | A kind of semiconductive thin film four-quadrant optical sensor and preparation method thereof |
| CN109427923B (en) * | 2017-08-25 | 2020-06-16 | 中国科学院大连化学物理研究所 | Semiconductor thin film four-quadrant illumination sensor and preparation method thereof |
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| CN106323228B (en) | 2019-06-18 |
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