CN105352599A - Photocell actinometer digital sensor - Google Patents
Photocell actinometer digital sensor Download PDFInfo
- Publication number
- CN105352599A CN105352599A CN201510945945.5A CN201510945945A CN105352599A CN 105352599 A CN105352599 A CN 105352599A CN 201510945945 A CN201510945945 A CN 201510945945A CN 105352599 A CN105352599 A CN 105352599A
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- China
- Prior art keywords
- chip
- sensor
- photocell
- digital
- bus
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 9
- 239000011669 selenium Substances 0.000 claims abstract description 9
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 8
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012546 transfer Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 14
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000001228 spectrum Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J2001/4266—Photometry, e.g. photographic exposure meter using electric radiation detectors for measuring solar light
- G01J2001/4285—Pyranometer, i.e. integrating over space
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a photocell actinometer digital sensor which comprises a photocell sensor made of selenium, silicon, germanium and the like, an AD chip, a digital thermometer, an MCU singlechip and an RS485 bus chip, wherein the photocell sensors are connected with the AD chip by virtue of a current-voltage conversion circuit; and the MCU singlechip is respectively connected with the AD chip, the digital thermometer and the RS485 bus chip. The photocell made of multiple materials such as selenium, silicon and germanium is simultaneously connected to a microcontroller system, complete spectrum solar insolation is calculated according to response of different spectrums on the photocell made of multiple materials, the microcontroller is combined with a bus system, the photocell actinometer digital sensor has the characteristics of digital output, bus control, intelligent acquisition and the like and can be conveniently connected to various automatic program control systems, and the requirements of different industrial control environments and agriculture control on measurement of solar insolation are met.
Description
Technical field
The present invention relates to a kind of photoelectric measurement sensor, Electronic Control, bus transfer technology, particularly relate to a kind of photoelectric cell actinograph digital sensor.
Background technology
Insolation measurement amount has vital role in agricultural production, meteorology and space technology research.Traditional high precision actinograph uses the sheet metal of two pieces of high-absorbilities to make receiver.A slice receives solar irradiation; Another sheet shields, and is provided with electric heater unit.Every sheet all settles thermopair, measures the temperature of sheet metal, when the two temperature difference is zero, the power of shielding sheet heating current is the solar radiation quantity received the unit interval.Its receiver is the chequered with black and white of horizontal positioned or the discoidal thermoelectric pile of black mostly, and with the protection of semisphere glass shell, prevents external interference, forms a small-sized greenhouse simultaneously, prevents radiation energy to scatter and disappear.This kind of actinograph full pedigree can measure insolation amount accurately, but sensor construction is complicated, involves great expense; and owing to measuring insolation amount by the temperature difference of shielded metal sheet and Exposure to Sunlight sheet metal, therefore respond comparatively slow, and need glass shell to protect; formed and measure greenhouse, volume is larger.Along with improving constantly of embedded system and digital technology, various digital sensor arises at the historic moment.Photoelectric cell is a kind of light activated element efficiently, has the features such as volume is little, cost is low, highly sensitive, time constant is little, direct electric signal output, can access embedded system simply efficiently, make digital optical intensity survey sensor.But photoelectric cell is comparatively large with temperature drift, and the photoelectric cell of unlike material, to different spectrum sensitive, Quan therefore pedigree insolation amount cannot be measured.
Summary of the invention
The object of this invention is to provide that a kind of structure is simple, automaticity is high, adaptable photoelectric cell actinograph digital sensor.
The object of the invention is to be achieved through the following technical solutions:
Photoelectric cell actinograph digital sensor of the present invention, comprise multiple photocell sensor, A/D chip, digital thermometer, MCU single-chip microcomputer, RS485 bus chip, described photocell sensor is connected with A/D chip by current-to-voltage converting circuit, and described MCU single-chip microcomputer is connected respectively with described A/D chip, digital thermometer, RS485 bus chip.
As seen from the above technical solution provided by the invention, the photoelectric cell actinograph digital sensor that the embodiment of the present invention provides, the photoelectric cell of selenium, silicon, germanium various material is accessed micro controller system simultaneously, comparatively complete pedigree insolation amount is drawn according to the Response calculation of various material photoelectric cell to different pedigree, microcontroller and bus system combine, there is the features such as Digital output, bus marco, intelligent collection, various robotization stored program controlled can be accessed easily, meet different industry control environment and the requirement of agricultural control to insolation measurement amount.
Accompanying drawing explanation
Fig. 1 is silicon photocell temperature characteristics;
Fig. 2 is the photronic spectral characteristic of different materials;
The principle modules figure of the photoelectric cell actinograph digital sensor that Fig. 3 provides for the embodiment of the present invention.
In figure:
1, selenium cell sensor, 2, silicon photocell sensor, 3, germanium photocell sensor, 4, A/D chip (TLC25434 modulus AD conversion), 5, digital thermometer (DS18B205 digital temperature sensor), 6, MCU single-chip microcomputer (AT89C2051 microcontroller), 7, RS485 bus chip, 8, current-to-voltage converting circuit.
Embodiment
To be described in further detail the embodiment of the present invention below.
Photoelectric cell actinograph digital sensor of the present invention, its preferably embodiment be:
Comprise multiple photocell sensor, A/D chip, digital thermometer, MCU single-chip microcomputer, RS485 bus chip, described photocell sensor is connected with A/D chip by current-to-voltage converting circuit, and described MCU single-chip microcomputer is connected respectively with described A/D chip, digital thermometer, RS485 bus chip.
Described multiple photocell sensor comprises selenium cell sensor, silicon photocell sensor, germanium photocell sensor.
Its short-circuit current electric signal is sent to A/D chip by described multiple photocell sensor;
Described in described MCU Single-chip Controlling A/D chip gather current signal, simultaneously read digital thermometer export temperature value go forward side by side trip temperature compensate;
Described MCU single-chip microcomputer draws insolation value according to the output valve weighted sum of described multiple photocell sensor, and carries out bus data transfer and control by serial ports by RS485 bus chip, forms digitized sensor.
Photoelectric cell actinograph digital sensor of the present invention, overcome single material photoelectric cell and full pedigree cannot measure the technological deficiency of insolation amount, use various material photocell sensor 1, 2, 3, and by photocell sensor 1, 2, 3 with MCU single-chip microcomputer 6, bussing technique 7 combines, the photocell sensor 1 of three kinds of materials, 2, 3 short-circuit currents exported are being transformed into voltage signal after TL084 circuit 8, AT89C2051 microcontroller 6 control TLC25434 carries out AD conversion to voltage signal, read the temperature value that DS18B205 digital temperature sensor exports simultaneously, microcontroller 6 is according to photoelectric cell 1, 2, 3 parameters of dispatching from the factory carry out temperature compensation.Photocell sensor 1,2, the 3 output valve weighted sum of three kinds of materials is drawn insolation value by microcontroller 6, and carries out data transmission by RS485 bus 7.
Photronic short-circuit current and illuminance linear, be desirable luminous intensity measurement sensor.The present invention utilizes this characteristic to choose photoelectric cell as insolation amount sensing element just.But as actinograph sensor, photocell sensor exist temperature drift comparatively large, can not the problem such as pedigree measurement solar irradiation entirely.
Specific embodiment:
Fig. 1 is silicon photocell temperature characteristics.Fig. 2 is the spectral pattern of silicon photocell, germanium photocell and selenium cell.As seen from Figure 2, the incident wavelength corresponding to photoelectric cell peak response peak value of unlike material is different, the peak in the spectral response of silicon photocell near 0.8 μm, wavelength coverage 0.4 ~ 1.2 μm, selenium cell peak in the spectral response near 0.5 μm, wavelength coverage 0.38 ~ 0.75 μm.
As shown in Figure 3, float comparatively greatly to overcome photoelectric cell temperature as far as possible, full pedigree can not experience the defect of sunshine, in measuring system, reload temperature sensor 6 carries out temperature compensation to measurement, and use the photoelectric cell of silicon 1, selenium 2, germanium more than 3 kind of unlike material as light sensor simultaneously, experience the sunshine of different spectrum, reach the covering sunshine pedigree of maximum magnitude.
Actinograph digital sensor by photocell sensor 1,2,3, TL084 current-to-voltage converting circuit 8, AT89C2051 microcontroller 6, TLC25434 modulus AD conversion, DS18B205 digital temperature sensor, RS485 bus chip 7 forms.
There is larger temperature drift as semiconductor devices in photoelectric cell, therefore system has installed DS18B20 digital thermometer 5 additional, for environmental monitoring and software temperature compensation.In addition the E2PROM storer that carries of DS18B205, as the storage space of the various operational factor of native system.
Communication line adopts can serial 485 communication protocol 7 of long-distance transmissions.Photocell sensor 1,2,3 with short-circuit current characteristic for foundation, therefore need use current-to-voltage converting circuit 8 photronic short-circuit current is amplified and fill be changed to voltage signal after carry out again modulus fill change.Native system selects 12 high-precision AD dresses to change chip TLC2543I as modulus switching device 4, and simultaneously in order to realize System self-test, TLC2543I4 is also responsible for gathering the signal such as supply voltage, system voltage, as reference data.
In work, the short-circuit current that the photocell sensor 1,2,3 of three kinds of materials exports is being transformed into voltage signal after TL084 circuit 8, AT89C2051 microcontroller 6 control TLC25434 carries out AD conversion to voltage signal, read the temperature value that DS18B205 exports, microcontroller 6 carries out temperature compensation according to photoelectric cell 1,2,3 parameter of dispatching from the factory simultaneously.Photocell sensor 1,2, the 3 output valve weighted sum of three kinds of materials is drawn insolation value by microcontroller 6, and carries out data transmission by RS485 bus 7.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (3)
1. a photoelectric cell actinograph digital sensor, it is characterized in that, comprise multiple photocell sensor, A/D chip, digital thermometer, MCU single-chip microcomputer, RS485 bus chip, described photocell sensor is connected with A/D chip by current-to-voltage converting circuit, and described MCU single-chip microcomputer is connected respectively with described A/D chip, digital thermometer, RS485 bus chip.
2. photoelectric cell actinograph digital sensor according to claim 1, is characterized in that, described multiple photocell sensor comprises selenium cell sensor, silicon photocell sensor, germanium photocell sensor.
3. photoelectric cell actinograph digital sensor according to claim 2, is characterized in that, its short-circuit current electric signal is sent to A/D chip by described multiple photocell sensor;
Described in described MCU Single-chip Controlling A/D chip gather current signal, simultaneously read digital thermometer export temperature value go forward side by side trip temperature compensate;
Described MCU single-chip microcomputer draws insolation value according to the output valve weighted sum of described multiple photocell sensor, and carries out bus data transfer and control by serial ports by RS485 bus chip, forms digitized sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945945.5A CN105352599B (en) | 2015-12-16 | 2015-12-16 | A kind of photocell actinograph digital sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945945.5A CN105352599B (en) | 2015-12-16 | 2015-12-16 | A kind of photocell actinograph digital sensor |
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| Publication Number | Publication Date |
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| CN105352599A true CN105352599A (en) | 2016-02-24 |
| CN105352599B CN105352599B (en) | 2018-01-12 |
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| CN201510945945.5A Active CN105352599B (en) | 2015-12-16 | 2015-12-16 | A kind of photocell actinograph digital sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU197051U1 (en) * | 2020-01-14 | 2020-03-26 | Федеральное государственное бюджетное учреждение науки Институт мониторинга климатических и экологических систем Сибирского отделения Российской академии наук | Device for monitoring solar radiation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004019077A2 (en) * | 2002-08-22 | 2004-03-04 | Optical Research Associates | Structures and methods for reducing retardance |
| JP2012033661A (en) * | 2010-07-29 | 2012-02-16 | Nikon Corp | Polarization characteristic calculation method of optical system and device, polarization characteristic calculation program for optical system, and exposure method and device |
| CN202382854U (en) * | 2011-11-10 | 2012-08-15 | 吴志洪 | Intelligent illumination photometer |
| CN104198035A (en) * | 2014-09-17 | 2014-12-10 | 中国电子科技集团公司第四十一研究所 | Solar irradiance sensor with temperature compensation function |
| CN205426335U (en) * | 2015-12-16 | 2016-08-03 | 中国地震局地壳应力研究所 | Photocell actinograph digital sensor |
-
2015
- 2015-12-16 CN CN201510945945.5A patent/CN105352599B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004019077A2 (en) * | 2002-08-22 | 2004-03-04 | Optical Research Associates | Structures and methods for reducing retardance |
| JP2012033661A (en) * | 2010-07-29 | 2012-02-16 | Nikon Corp | Polarization characteristic calculation method of optical system and device, polarization characteristic calculation program for optical system, and exposure method and device |
| CN202382854U (en) * | 2011-11-10 | 2012-08-15 | 吴志洪 | Intelligent illumination photometer |
| CN104198035A (en) * | 2014-09-17 | 2014-12-10 | 中国电子科技集团公司第四十一研究所 | Solar irradiance sensor with temperature compensation function |
| CN205426335U (en) * | 2015-12-16 | 2016-08-03 | 中国地震局地壳应力研究所 | Photocell actinograph digital sensor |
Non-Patent Citations (1)
| Title |
|---|
| 陈征等: "光电池光强测量数字传感器设计", 《控制工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU197051U1 (en) * | 2020-01-14 | 2020-03-26 | Федеральное государственное бюджетное учреждение науки Институт мониторинга климатических и экологических систем Сибирского отделения Российской академии наук | Device for monitoring solar radiation |
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| Publication number | Publication date |
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| CN105352599B (en) | 2018-01-12 |
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Address after: 100085, Anning Road, Haidian District, Beijing, 1, Xisanqi Patentee after: National natural disaster prevention and Control Research Institute, Ministry of emergency management Address before: 100085, Anning Road, Haidian District, Beijing, 1, Xisanqi Patentee before: THE INSTITUTE OF CRUSTAL DYNAMICS, CHINA EARTHQUAKE ADMINISTRATION |