WO2011036247A1 - Capteur de rayonnement pour capteurs solaires - Google Patents

Capteur de rayonnement pour capteurs solaires Download PDF

Info

Publication number
WO2011036247A1
WO2011036247A1 PCT/EP2010/064137 EP2010064137W WO2011036247A1 WO 2011036247 A1 WO2011036247 A1 WO 2011036247A1 EP 2010064137 W EP2010064137 W EP 2010064137W WO 2011036247 A1 WO2011036247 A1 WO 2011036247A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation sensor
led
leds
sensor
sensor according
Prior art date
Application number
PCT/EP2010/064137
Other languages
German (de)
English (en)
Inventor
Michael Killermann
Alexander Kist
Sebastian Schütz
Klaus Hofbeck
Harry Schilling
Original Assignee
Georg-Simon-Ohm Hochschule für angewandte Wissenschaften Fachhochschule Nürnberg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg-Simon-Ohm Hochschule für angewandte Wissenschaften Fachhochschule Nürnberg filed Critical Georg-Simon-Ohm Hochschule für angewandte Wissenschaften Fachhochschule Nürnberg
Publication of WO2011036247A1 publication Critical patent/WO2011036247A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7861—Solar tracking systems
    • 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
    • G01J1/02—Details
    • 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
    • G01J1/02—Details
    • G01J1/0242—Control or determination of height or angle information of sensors or receivers; Goniophotometry
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • G01S2007/4975—Means for monitoring or calibrating of sensor obstruction by, e.g. dirt- or ice-coating, e.g. by reflection measurement on front-screen

Definitions

  • the invention relates to a radiation sensor, in particular a light sensor for determining the position of a radiation source.
  • a sun sensor with which the exact position of the sun can be determined.
  • solar systems can be optimally aligned with the sun.
  • a sun sensor is disclosed, as it can be used for example for controlling the air conditioning of motor vehicles.
  • the sunlight falls through an aperture on an area of solar cells divided into four partial areas. Depending on the position of the sun, different solar cells or parts thereof are illuminated.
  • the electricity generated from the solar cells can also be used to determine the intensity of solar radiation.
  • US 4,711,998 discloses another sensor with which the position of the sun can be determined with higher accuracy.
  • three solar cells which are each shaded by mirror surfaces of each other, used and evaluated their signals mathematically to calculate the sun's position.
  • No. 7,378,628 B2 discloses a further solar sensor in which four optical sensor elements are arranged separated from one another by shading surfaces.
  • a disadvantage of the aforementioned sensors is that they each require a high outlay on production. Thus, in order to obtain sufficient sensor accuracy, the positioning of the individual sensor elements and the shading elements must be carried out with high precision. In order to achieve a high angular resolution, high shading elements are necessary, resulting in a relatively large sensor design. Furthermore, these sensors are not able to detect contamination on the sensor surface.
  • the object of the invention is to provide a radiation sensor, in particular a light sensor, which has high precision and at the same time can be manufactured cost-effectively. Furthermore, the sensor should be able to detect contamination on the surface of a sensor cover and, if necessary, to correct the measured values accordingly.
  • a radiation sensor serves to detect the position of a light source or heat source.
  • the position of the sun should be detected with such a sensor.
  • Solar collectors optional photoelectric collectors such as solar cells or thermal collectors or optical collectors have the best efficiency when they are aligned with the sun.
  • optical collectors in which sunlight is bundled by lens systems in optical fibers and forwarded through this for further use are relatively sensitive to deviations from the direction of the sun to the optical axis of the system. Therefore, particularly precise sensors for detecting the position of the sun are necessary here.
  • a radiation sensor according to the invention has a sensor housing 10 with bores IIa, IIb, 11c, 11d, 11z for receiving LEDs 20a, 20b, 20c, 20d, 20z. These holes are arranged at an angle to each other and have a diameter so that LEDs in a standard housing, for example, with 3 mm or 5 mm diameter can be used in this.
  • a basic idea of the invention is that LEDs can basically also be operated as photosensors. Like photodiodes, they can emit a slight photo voltage when exposed to light. Alternatively, upon exposure of the LED in the reverse direction, a radiation-dependent photocurrent will flow through the LED. Both effects can be used to generate a measurement signal. Compared to photodiodes, the efficiency and sensitivity of LEDs is much lower.
  • the LED can now be easily inserted into the hole, for example, pressed and / or also glued, for example, with epoxy resin.
  • the reception characteristic of individual LEDs or of the entire sensor can be measured and corresponding correction values can be stored for later correction of the sensor measured values. With such sensors angle resolutions of better than 0.1 degrees could be achieved.
  • At least two LEDs are now arranged at an angle to each other, so that they can never stand at the same time with their central axis to the sun.
  • the two LEDs must therefore not be arranged in parallel. Now always delivers that LED, which is closer to the sun, the larger signal. Because of these signals, it is now easy to control a positioning motor or another positioning device for positioning the solar collector so that both LEDs emit the same signal and thus both are equidistant from the sun, because then the sun is exactly in the middle between the LEDs.
  • a control unit which evaluates the signals of the LEDs and / or optionally controls the LEDs, so that they emit light. It is obvious that an LED which is being driven to emit light can not be used simultaneously for the detection of light. However, it is possible to switch the LEDs in a clocked operation between light emission and light detection. Alternatively, different LEDs may emit light while other LEDs simultaneously detect light.
  • the main task of the radiation sensor according to the invention is to generate a control signal for the adjustment of a solar collector.
  • the radiation sensor is preferably adjusted synchronously with the solar collector or aligned so that the direction of incidence of sunlight on the radiation sensor is parallel to the direction of incidence on the solar collector.
  • the radiation sensor according to the invention has the maximum resolution in a central axis of the sensor, which is preferably identical to the housing center axis 13. In principle, however, such a sensor can also be used for position determination relative to its central axis.
  • Radiation sensors according to the invention optionally have two, three or even four LEDs. In principle, more LEDs are possible.
  • a sensor with two LEDs allows the tracking of a solar collector in one axis.
  • With a sensor with three or four LEDs tracking in two axes is possible.
  • these are preferably arranged around the housing center axis, offset by 120 ° relative to each other, at a constant distance from the housing center axis.
  • these are arranged offset from each other by only an angle of 90 °, as in the arrangement with three LEDs.
  • the LEDs In order to achieve the highest possible angular resolution of the sensor, the LEDs have a correspondingly small radiation angle. This should be less than 30 °, preferably less than 10 °. By selecting suitable LEDs, the sensor can be easily adapted to different resolutions with the same mechanical structure.
  • the characteristic of the radiation sensitivity of at least one, preferably both LED as a function of the angle of the light source to the LED is not constant, particularly preferably steeper than cos2x or cos3x.
  • LEDs typically have chips mounted on a reflector and having more lenticular elements for better focusing of the light.
  • the center axes of the LED are tilted outward relative to the housing center axis by a certain angle.
  • This angle preferably corresponds to half the radiation angle of the individual LEDs. It would also be conceivable to tilt inwards so that the radiation lobes of the LEDs intersect.
  • the radiation sensor has at least one darkened LED.
  • This LED is preferably permanently darkened, for example integrated in a dark housing interior 12.
  • the output signal of this LED is used to increase the measuring accuracy.
  • a dark current generated by this LED can be subtracted from the signal currents of the LEDs used for the measurement.
  • Such temperature compensation is particularly important because solar panels and thus the radiation sensor is exposed to direct sunlight and thus will heat up significantly during operation.
  • the part of the sensor housing facing the sun is reflective coated or mirrored.
  • a fine sensor with high angular resolution is provided for precise positioning.
  • LEDs are preferably used with low radiation angles.
  • a coarse alignment coarse sensor is provided.
  • LEDs with large emission angles are preferably used.
  • an additional photodiode and / or LED for day / night detection is provided.
  • the control unit 30 can be deactivated to reduce the power consumption of the entire arrangement.
  • the solar collector can be driven into a sheltered night position.
  • an additional LED 20z is provided as a cloud sensor.
  • This LED 20z is directly aligned with the sun. Accordingly, it is arranged parallel to the sensor central axis.
  • a control unit 30 which comprises measuring amplifiers 34a, 34b and further means for measuring or evaluating the signals of the LED. Furthermore, optionally at least one current source 35a, 35b is provided for supplying at least one LED with current. As a result, at least one LED for light emission can be specifically controlled. By controlling the LEDs for light emission, various operating states can also be signaled. Thus, for example, an LED, which just receives the maximum sun intensity, in intermittent operation (flashing) signal this. Alternatively, one or more LEDs with other, for example, the lowest intensities, be controlled for light emission. This allows a simple adjustment of the entire device or a troubleshooting.
  • An inventive sensor is preferred for detecting the position of the sun, but can also be used for position detection of the moon and other, even artificial, light sources.
  • Another aspect of the invention relates to a method for calibrating a radiation sensor according to one of the preceding claims.
  • a current is fed into at least one of the LEDs 20a, 20b, 20c, 20d, so that the at least one LED imitates light. It is particularly favorable if light is actually only fed into a single LED here.
  • the signal from at least one of the other LEDs is measured.
  • light which is imitated by one of the LEDs is at least partially reflected by contaminants on the surface of the sensor or a further overlying cover and can then be detected by the other LEDs which do not imitate light. According to pollution, more or less light is reflected and correspondingly large is the signal amplitude in the other LEDs.
  • the dark current ie without light emission by an LED
  • the difference between the measured signal with light emission of an LED and the measured signal without light emission of that LED is then evaluated.
  • This difference is a measure of the contamination of the sensor.
  • a correction of the sensor measured values can now take place.
  • an error message can also be issued if the sensor is heavily contaminated.
  • This method is preferably carried out in a dark environment (night), since otherwise the radiated from the outside basic light intensity is too high.
  • An inventive sensor can advantageously be calibrated with the aid of a collector signal from the solar collector.
  • This collector signal can be derived, for example, by measuring the energy, current or voltage delivered by a solar collector.
  • the rough sun position due to the calculated position of the sun and / or the uncalibrated sensors can be approached.
  • the area can be scanned around the sun to determine the position of the maximum collector signal and thus the maximum efficiency of the collector. This position is then defined as the new center position of the sensor.
  • the scanning of the Sun's environment can be controlled on a helical path, or also by an algorithm that seeks a local or global maximum, for example, by calculating the first and second derivative of the collector signal by location.
  • the sensor values are measured and calibration data is obtained therefrom. Due to this calibration, tolerances in the mounting of the sensor in relation to the Lektor and tolerances in an optical system of the collector balanced. Since the tolerances of the collector tracking, for example by mechanical play are often position-dependent, the calibration is preferably carried out at different positions in different positions of the sun. After the sensor has been calibrated, an optimal sun position can be quickly controlled by evaluating the sensor signals. A frequent adjustment of the solar collector as for calibration is then no longer necessary.
  • the sensor is mounted on a movable or stationary base. This can be, for example, a bridge or building or the vibrating part of an engine.
  • the light source is located in a stationary or movable part of the arrangement.
  • the light source should preferably be a laser or a light source with a small opening angle and fully illuminate the sensor. In the rest position of the arrangement, the sensor provides a zero signal. If the surface begins to oscillate or move with the sensor, a signal is to be measured at the sensor output.
  • the sensor should always be completely in the light cone of the light source in order to visualize the vibration or movement well. The distance from the sensor to the light source can be arbitrarily large.
  • Fig. 1 shows a device according to the invention in section.
  • Fig. 2 shows a perspective view of a device according to the invention with four LEDs.
  • Fig. 3 shows an arrangement as shown in FIG. 2, but with an additional LED as a cloud sensor.
  • Fig. 4 shows the radiation patterns of LEDs of the sensor.
  • Fig. 5 shows a sensor arrangement with lower sunk LEDs.
  • Fig. 6 shows a plan view of a sensor with 2 LEDs.
  • Fig. 7 shows a plan view of a sensor with 3 LEDs.
  • Fig. 8 shows a plan view of a sensor with 4 LEDs.
  • Fig. 9 shows a plan view of a sensor with 4 LEDs and cloud sensor.
  • FIG. 10 shows the block diagram of a complete sensor arrangement with control unit.
  • a radiation sensor according to the invention is shown in section.
  • the sensor housing 10 includes the holes IIa and IIb for receiving the LEDs 20a and 20b.
  • the LEDs are designed here in the typical 5 mm LED housing.
  • the holes have a diameter so that the LEDs can just be pressed into them.
  • the center axes 21a, 21b of the LED 20a, 20b are arranged at an angle relative to the housing center axis 13.
  • the LEDs can also be connected directly with cables or wires.
  • the control unit or at least a part thereof is arranged on this printed circuit board 14.
  • the sensor requires a light receiver with a very steep but even characteristic.
  • the sensor should be particularly well suited for punctiform light sources, for example the sun, with collimated light.
  • the sensor In order to determine the exact position of such a light source, the sensor must be aligned exactly to the collimated, ie parallel incident light beam. Therefore, the characteristic of the receiver of the sensor must be as narrow as possible to avoid angular errors.
  • LEDs have this required precise and narrow characteristic in contrast to photodiodes, ie in LEDs the sensitivity is very narrowband with cosx, cos2x or cos3x decreasing over the angle of incidence, whereas in photodiodes it is very broadband approximately linear with a wavelength dependent attenuation.
  • the senor is preferably used for detecting the position of the sun and thus the visible light, it is also possible to find the brightest point in this area.
  • the developed sensor is far less susceptible to disturbing stray light and reflections in the environment.
  • FIG. 2 shows a perspective view of the radiation sensor according to the invention.
  • the sensor housing 10 four LEDs 20a, 20b, 20c, 20d are arranged in the bores IIa, 11b, 11c, 11d.
  • FIG. 3 shows a radiation sensor with an additional LED 20z as a cloud sensor.
  • This LED 20z is arranged with its central axis 21z parallel to the central axis 13 of the sensor housing 10.
  • FIG. 4 shows the radiation patterns 22a, 22b of the LEDs 20a, 20b.
  • the emission angle is defined as the angle at which the radiation power has dropped by half compared to the radiation power on the central axis 21a, 21b.
  • the central axes 21a, 21b are opposite to the
  • Housing center axis 13 tilted outwards.
  • the sensor center axis lies on the housing center axis. Therefore, in the presentation between these two terms is often not distinguished. Essential here, however, is the sensor centerline.
  • FIG. 5 shows a further embodiment of a radiation sensor according to the invention. Due to the good bundling by the LEDs shading, as known from the prior art, is not necessary. However, side lobes may appear on two LEDs in the radiation pattern. In order to prevent or at least reduce unwanted radiation entry through these side lobes here, the LEDs can be sunk deeper into the bores IIa, IIb of the housing 10. This results in a simple way, a further shading.
  • Fig. 6 is still a plan view of the radiation sensor, according to the invention in one embodiment, shown with two LEDs.
  • FIG. 7 shows a further embodiment of the invention with three LEDs. These LEDs 20a, 20b and 20c are at a constant distance from the
  • FIG. 8 shows a further embodiment of the invention with four LEDs. These LEDs 20a, 20b, 20c and 20d are at a constant distance from the
  • FIG. 9 shows a further embodiment with a cloud sensor.
  • the LED 20z as a cloud sensor is mounted here in the middle of the arrangement and has thus aligned with optimal alignment of the sensor their beam axis directly to the sun.
  • FIG. 10 also shows a control unit 30 to which LEDs 20a, 20b are connected.
  • measuring amplifiers 34a, 34b are provided to evaluate the signals of the LEDs 20a and 20b. These amplify the signals to a level that can be converted and processed by a microcontroller or an upstream analog / digital converter.
  • current sources 35a, 35b are provided for applying a current for emitting light to the LEDs 20a, 20b. These power sources are powered by the
  • Microcontroller 31 driven Here is basically a control by digital signals, so that the LED can be switched on or off or even a control by analog signals, for example via a digital / analog converter possible. It is also not mandatory that each LED can be powered by a power source. However, it is very advantageous if this is possible at least for one LED. In principle, separate LEDs for light emission could also be used to detect contamination of the sensor from the measuring LEDs. For the storage of measurement data, which indicate contamination or on further calibration data, is still one
  • Calibration data memory 32 is provided. This can either be integrated directly into the microcontroller or be implemented as an external memory chip. The output signal of the microcontroller 36 can then be used to control the solar collector. LIST OF REFERENCE NUMBERS

Abstract

L'invention concerne un capteur de rayonnement destiné à détecter la position du soleil, qui comporte un boîtier de capteur comprenant, des trous opposés les uns aux autres à un certain angle, dans lesquels sont fixées des DEL. Du fait de la forte concentration de leur rayonnement, ces DEL peuvent être utilisées comme des capteurs de position extrêmement précis. De plus, les salissures situées sur la pellicule de protection du capteur sont faciles à détecter. En outre, une DEL fonctionne comme source de lumière, pendant que les autres DEL mesurent la lumière réfléchie. Ces capteurs de rayonnement permettent d'orienter les capteurs solaires de manière extrêmement précise.
PCT/EP2010/064137 2009-09-25 2010-09-24 Capteur de rayonnement pour capteurs solaires WO2011036247A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009045031.9 2009-09-25
DE102009045031A DE102009045031A1 (de) 2009-09-25 2009-09-25 Strahlungssensor für Sonnenkollektoren

Publications (1)

Publication Number Publication Date
WO2011036247A1 true WO2011036247A1 (fr) 2011-03-31

Family

ID=43125573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/064137 WO2011036247A1 (fr) 2009-09-25 2010-09-24 Capteur de rayonnement pour capteurs solaires

Country Status (2)

Country Link
DE (1) DE102009045031A1 (fr)
WO (1) WO2011036247A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103932A1 (de) * 2012-05-04 2013-11-07 STABILA Messgeräte Gustav Ullrich GmbH Anordnung und Verfahren zum Detektieren und Anzeigen einer Laserstrahlung
CZ306835B6 (cs) * 2013-06-17 2017-08-02 VladimĂ­r Burlak Vícesměrné snímání světla různé vlnové délky
GB2595317A (en) * 2020-09-22 2021-11-24 Specialist Health Solutions Ltd UV light monitoring system for a UV decontamination apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013109506A1 (de) * 2013-08-30 2015-03-05 CiS Forschungsinstitut für Mikrosensorik und Photovoltaik GmbH Richtungssensitiver Fotosensor zur Erfassung der Einfallsrichtung von Licht
EP3521782A1 (fr) * 2014-03-03 2019-08-07 ams AG Procédé pour opérer un agencement de capteur directionel

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491727A (en) * 1981-07-01 1985-01-01 Ramot University Authority For Applied Research Solar radiation sensor and system including same for measuring solar radiation distribution
US4711998A (en) 1985-12-05 1987-12-08 Santa Barbara Research Center Direction finder system with mirror array
US5117744A (en) 1988-12-22 1992-06-02 Saab Automobile Aktiebolag Sensor for an air-conditioning system in a vehicle
US6617560B2 (en) * 2001-05-30 2003-09-09 Watt Stopper, Inc. Lighting control circuit including LED for detecting exposure to radiation
US20060012986A1 (en) * 2004-07-19 2006-01-19 Joseph Mazzochette LED array package with internal feedback and control
GB2442982A (en) * 2006-10-16 2008-04-23 Peter William Richards A solar tracking device
US7378628B2 (en) 2003-06-24 2008-05-27 Accel Ab Photo radiation intensity sensor and method thereof
WO2008129453A1 (fr) * 2007-04-20 2008-10-30 Koninklijke Philips Electronics N.V. Dispositif d'éclairage avec une del utilisée pour une détection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821743A1 (de) * 1988-06-28 1990-01-11 Bosch Gmbh Robert Sensor zur erfassung der einstrahlung
DE19901413C2 (de) * 1999-01-16 2002-12-05 Helmut Haf Elektronik eines Fahrzeuges, vorzugsweise eines Kraftfahrzeuges
DE20320155U1 (de) * 2002-12-31 2004-05-19 Osram Opto Semiconductors Gmbh Optisches Sensormodul
DE102004022077A1 (de) * 2004-05-05 2005-12-01 Eric Herpertz Sensor zur Erfassung der Sonneneinstrahlung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491727A (en) * 1981-07-01 1985-01-01 Ramot University Authority For Applied Research Solar radiation sensor and system including same for measuring solar radiation distribution
US4711998A (en) 1985-12-05 1987-12-08 Santa Barbara Research Center Direction finder system with mirror array
US5117744A (en) 1988-12-22 1992-06-02 Saab Automobile Aktiebolag Sensor for an air-conditioning system in a vehicle
US6617560B2 (en) * 2001-05-30 2003-09-09 Watt Stopper, Inc. Lighting control circuit including LED for detecting exposure to radiation
US7378628B2 (en) 2003-06-24 2008-05-27 Accel Ab Photo radiation intensity sensor and method thereof
US20060012986A1 (en) * 2004-07-19 2006-01-19 Joseph Mazzochette LED array package with internal feedback and control
GB2442982A (en) * 2006-10-16 2008-04-23 Peter William Richards A solar tracking device
WO2008129453A1 (fr) * 2007-04-20 2008-10-30 Koninklijke Philips Electronics N.V. Dispositif d'éclairage avec une del utilisée pour une détection

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103932A1 (de) * 2012-05-04 2013-11-07 STABILA Messgeräte Gustav Ullrich GmbH Anordnung und Verfahren zum Detektieren und Anzeigen einer Laserstrahlung
DE102012103932B4 (de) * 2012-05-04 2015-05-07 STABILA Messgeräte Gustav Ullrich GmbH Anordnung und Verfahren zum Detektieren und Anzeigen einer Laserstrahlung
DE202012013188U1 (de) 2012-05-04 2015-07-14 STABILA Messgeräte Gustav Ullrich GmbH Anordnung zum Detektieren und Anzeigen einer Laserstrahlung
CZ306835B6 (cs) * 2013-06-17 2017-08-02 VladimĂ­r Burlak Vícesměrné snímání světla různé vlnové délky
GB2595317A (en) * 2020-09-22 2021-11-24 Specialist Health Solutions Ltd UV light monitoring system for a UV decontamination apparatus
GB2595317B (en) * 2020-09-22 2023-11-01 Specialist Health Solutions Ltd UV light monitoring system for a UV decontamination apparatus

Also Published As

Publication number Publication date
DE102009045031A1 (de) 2011-03-31

Similar Documents

Publication Publication Date Title
DE19940280C2 (de) Gassensor mit offener optischer Meßstrecke
DE112008003988B4 (de) Abstandsmesssystem
EP2150780B1 (fr) Procédé et dispositif optoélectronique de mesure de position
DE102007014034B3 (de) Optischer Sensorchip und Einklemmschutzvorrichtung mit einem solchen
WO2011036247A1 (fr) Capteur de rayonnement pour capteurs solaires
EP1466827A2 (fr) Capteur pour surfaces
EP2418512A1 (fr) Agencement de mesure optoélectronique doté d'une compensation de lumière parasite
DE102011053140B4 (de) Vorrichtung und Verfahren zum Messen optischer Eigenschaften von transparenten Materialien
DE10300223B3 (de) Optoelektronische Messanordnung mit Fremdlichtkompensation sowie Verfahren zur phasenkorrekten Kompensation eines Signals der Messanordnung
EP1355128A1 (fr) Alignement automatique d'un senseur
WO1999046612A1 (fr) Systeme optique destine a la detection de la position d'un objet
EP1955052A1 (fr) Appareil de mesure de la distribution de la reflectance bidirectionnelle
DE102015013697A1 (de) Beleuchtungssystem und Verfahren zum Reduzieren von Rauschen an Lichterfassungsvorrichtung
DE102010043723B4 (de) Lichtlaufzeitkamerasystem
DE112015000377T5 (de) Optischer Sensor
DE1548747B1 (de) Vorrichtung zur Kompensation von Stoereinfluessen im Strahlengang einer foto-elektrischen Abtasteinrichtung
DE102018204146B4 (de) Vefahren zum Schätzen eines Zustandes eines Globalstrahlungssensors und Messstation mit Globalstrahlungssensor
DE102006023971B4 (de) Optischer Sensor und Verfahren zum Nachweis von Personen, Tieren oder Gegenständen
DE102007031289B4 (de) Winkel-Ausrichtungsapparat
EP3193195A1 (fr) Capteur optique
DE4315264C2 (de) Anordnung zum Erfassen von Kanten von sich in einer Hauptarbeitsebene aufhalten könnenden Gegenständen
DE10356729B4 (de) Farbsensor
WO2022167362A1 (fr) Détection d'un changement de luminosité dans l'environnement d'un véhicule automobile
DE10303038B4 (de) Positionsmesseinrichtung
DE102006054922B3 (de) Vorrichtung zur Begrenzung eines Meßvolumens in einem optischen Meßsystem

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10757600

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10757600

Country of ref document: EP

Kind code of ref document: A1