FR2685767A1 - Device for measuring ultraviolet solar radiation - Google Patents

Device for measuring ultraviolet solar radiation Download PDF

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Publication number
FR2685767A1
FR2685767A1 FR9116505A FR9116505A FR2685767A1 FR 2685767 A1 FR2685767 A1 FR 2685767A1 FR 9116505 A FR9116505 A FR 9116505A FR 9116505 A FR9116505 A FR 9116505A FR 2685767 A1 FR2685767 A1 FR 2685767A1
Authority
FR
France
Prior art keywords
detector
housing
display
collimator
microprocessor
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
FR9116505A
Other languages
French (fr)
Inventor
Powers William
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9116505A priority Critical patent/FR2685767A1/en
Publication of FR2685767A1 publication Critical patent/FR2685767A1/en
Pending legal-status Critical Current

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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
    • G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
    • 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
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • 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
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0422—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using light concentrators, collectors or condensers
    • 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
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0488—Optical or mechanical part supplementary adjustable parts with spectral filtering
    • 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
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/06—Restricting the angle of incident light
    • 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

Abstract

The invention relates to a device for measuring the intensity of the direct and global UV solar radiation, as well as the direct/global ratio and the energy absorbed during a specified period of time. It comprises a casing (1) fitted with a removable lid (4) carrying a collimator (5) which masks the entire sky except for the solar disc of the field of view of a sensor (2) when the lid is closed. An optical filter (3), which can be replaced easily, makes it possible to study various parts of the solar UV spectrum. The casing incorporates a microprocessor which displays the result of the measurements on a display (7) as a function of commands input by a keyboard (6). An interface (8) connected to the microprocessor allows it to be programmed.

Description

La présente invention concerne un dispositif pour mesurer Intensité du rayonnement solaire ultraviolet. The present invention relates to a device for measuring the intensity of ultraviolet solar radiation.

Suite à la détérioration de Ia couche d'ozone stratosphérique, ce qui augmente l'intensité de la radiation solaire ultraviolette à la surface de la terre, et du rapport entre cette radiation et I'incidence des cancers de Ia peau humaine, il est intéressant de connaître rintensité instantanée, directe et globale du rayonnement UV solaire, ainsi que rénergie totale incidente de ce rayonnement pendant une période de temps définie. En outre, le rapport entre I' intensité du rayonnement direct et du rayonnement global peut etre utilisé pour le caIcul de la concentration d'aérosols dans ratmosphère terrestre. Following the deterioration of the stratospheric ozone layer, which increases the intensity of solar ultraviolet radiation on the surface of the earth, and the relationship between this radiation and the incidence of human skin cancer, it is interesting to know the instantaneous, direct and global intensity of solar UV radiation, as well as the total incident energy of this radiation for a defined period of time. In addition, the ratio of the intensity of direct radiation to that of global radiation can be used to calculate the concentration of aerosols in the Earth's atmosphere.

Le dispositif selon l'invention permet de satisfaire ces besoins. The device according to the invention makes it possible to satisfy these needs.

La figure I montre, en coupe partielle, le dispositif de l'invention. Figure I shows, in partial section, the device of the invention.

La figure 2 montre, en coupe éclatée, un détail du dispositif. Figure 2 shows, in exploded section, a detail of the device.

La figure 3 montre un schéma du fonctionnement logique du traitement de données accompli par le dispositif. FIG. 3 shows a diagram of the logical operation of the data processing performed by the device.

En référence à ces dessins, le dispositif de I'invention comporte un boitier (I) muni d'un détecteur (2), sensible à la radiation ultraviolette solaire d'une longueur d'onde entre 200 et 330 nanomètres, à titre d'exemple non-limitatif, une photodiode de phosphore de gallium, qui produit un signaI, soit une tension électrique soit un courant électrique, proportionnel à l'intensité de énergie radiante incidente au détecteur. With reference to these drawings, the device of the invention comprises a box (I) provided with a detector (2), sensitive to solar ultraviolet radiation with a wavelength between 200 and 330 nanometers, by way of non-limiting example, a photodiode of gallium phosphorus, which produces a signal, either an electric voltage or an electric current, proportional to the intensity of radiant energy incident on the detector.

Le dispositif comporte aussi un filtre optique (3) qui ne laisse passer que des longueurs d'onde d'une Iargeur de bande restreinte, d'environ 10 nanomètres. The device also includes an optical filter (3) which lets through only wavelengths of a restricted bandwidth, of around 10 nanometers.

Le boitier (I) comporte un couvercle amovibIe (4) muni d'un collimateur (5) d'une telle forme que le collimateur puisse occulter tout le ciel sauf le disque soIaire du champ de vue du détecteur (2). Quand le couvercle est fermé sur le boitier, I'invention mesure le rayonnement solaire direct ; quand le couvercle est enlevé, on mesure le rayonnement global.  The box (I) comprises a removable cover (4) provided with a collimator (5) of such a shape that the collimator can obscure all the sky except the sun disk of the detector's field of view (2). When the cover is closed on the case, the invention measures direct solar radiation; when the cover is removed, the overall radiation is measured.

Le dispositif de l'invention comporte aussi un microprocesseur et une unité de mémoire de données montés à intérieur du boitier. Le dispositif comporte aussi à Z'extérieur du boitier un clavier de commande (6), un affichage (7) et un interface de transmission de données (8) reIiés au microprocesseur (9). Le fonctionnement logique du microprocesseur, de l'unité de mémoire, du clavier, de Affichage et de l'interface est décrit schématiquement par la figure 3. Le microprocesseur (9) reçoit le signal du détecteur (2) après que le signal soit amplifié et numérisé par un circuit amplificateur (10) et un circuit numérisateur (11).Le microprocesseur, selon sa programmation et les commandes entrées par le clavier traite le signal et stocke Ies résultats dans Unité de mémoire (12). Sur commande, Ie microprocesseur affichera les vaIeurs demandées sur l'affichage. L'interface de transmission de données permet de programmer et de commander le microprocesseur à partir d'un terminal extérieur et de récupérer les données stockées en mémoire pour archivage. The device of the invention also comprises a microprocessor and a data memory unit mounted inside the case. The device also includes outside the box a control keyboard (6), a display (7) and a data transmission interface (8) connected to the microprocessor (9). The logical operation of the microprocessor, memory unit, keyboard, display and interface is described schematically in Figure 3. The microprocessor (9) receives the signal from the detector (2) after the signal is amplified. and digitized by an amplifier circuit (10) and a digitizing circuit (11). The microprocessor, according to its programming and the commands entered by the keyboard processes the signal and stores the results in memory unit (12). On command, the microprocessor will display the requested values on the display. The data transmission interface makes it possible to program and control the microprocessor from an external terminal and to recover the data stored in memory for archiving.

A titre d'exemple non limitatif, Ie microprocesseur est programmé pour calculer, à partir de données acquises du détecteur, les valeurs instantanées de intensité de la radiation solaire ultraviolette directe et globale, de stocker ces valeurs en mémoire, d'afficher les valeurs instantanées, de calculer et d'afficher le rapport rayonnement direct/rayonnement global, et de calculer et d'afficher énergie totale reçue par le détecteur pendant une période de temps spécifiée. By way of nonlimiting example, the microprocessor is programmed to calculate, from data acquired from the detector, the instantaneous values of intensity of direct and global ultraviolet solar radiation, to store these values in memory, to display the instantaneous values , calculating and displaying the direct radiation / global radiation ratio, and calculating and displaying the total energy received by the detector for a specified period of time.

Selon un autre mode de réaIisation, le couvercle du boitier (4) et le collimateur (5) comportent un oeilleton (13) et un bouton de mire (14). According to another embodiment, the housing cover (4) and the collimator (5) include an eyepiece (13) and a test pattern (14).

L'oeilleton et le bouton de mire étant disposés de telle façon que Iorsque le faisceau de lumière qui traverse l'oeilleton tombe sur le bouton de mire, Ie collimateur est ajusté sur la source de la Iumière. The eyepiece and the test pattern being arranged in such a way that when the beam of light passing through the eyepiece falls on the test pattern, the collimator is adjusted to the light source.

Selon un autre mode de réalisation, afin de permettre le changement rapide de filtres et de détecteurs et ainsi faciliter I'étude de différentes parties du spectre solaire, le boitier comporte une projection circulaire (15) muni de pas de vis afin de recevoir une pièce de fixation taraudée (16) qui permet un démontage et un montage rapide du filtre et du détecteur. According to another embodiment, in order to allow the rapid change of filters and detectors and thus facilitate the study of different parts of the solar spectrum, the box includes a circular projection (15) provided with threads in order to receive a part. of threaded fixing (16) which allows rapid disassembly and assembly of the filter and the detector.

Selon un autre mode de réalisation, le boitier comporte des cellules photovoltaïques (17) pour fournir I' énergie nécessaire au fonctionnement du dispositif.  According to another embodiment, the housing comprises photovoltaic cells (17) to supply the energy necessary for the operation of the device.

Claims (8)

REVENDICATIONS I) Dispositif pour mesurer l'intensité de la radiation ultraviolette solaire par le traitement d'un signal proportionnel à I'intensité de la radiation produit par un détecteur muni d'un filtre optique et exposé au soleil caractérisé en ce que le détecteur (2) et le filtre (3) sont incorporés dans un boitier (1) muni d'un couvercIe (4) amovible qui comporte un collimateur de telles dimensions que le collimateur occulte tout le ciel sauf le disque soIaire du champ de vue du détecteur quand le couvercle est fermé. I) Device for measuring the intensity of solar ultraviolet radiation by processing a signal proportional to the intensity of the radiation produced by a detector fitted with an optical filter and exposed to the sun, characterized in that the detector (2 ) and the filter (3) are incorporated in a box (1) provided with a removable cover (4) which includes a collimator of such dimensions that the collimator obscures all the sky except the sun disc from the detector's field of view when the cover is closed. 2) Dispositif selon la revendication 1, caractérisé en ce que le détecteur (2) est une photodiode de phosphore de gallium 2) Device according to claim 1, characterized in that the detector (2) is a gallium phosphorus photodiode 3) Dispositif selon Ia revendication 1 ou la revendication 2 caractérisé en ce que le signal du détecteur (2) est envoyé à un microprocesseur (9) incorporé dans le boitier (1). 3) Device according to claim 1 or claim 2 characterized in that the detector signal (2) is sent to a microprocessor (9) incorporated in the housing (1). 4) Dispositif selon Ia revendication 3 caractérisé en ce que le boitier (1) comporte une unité de mémoire de données (12), un clavier (6), un affichage (7) et un interface de transmission de données (8) reIiés au microprocesseur (9). 4) Device according to claim 3 characterized in that the housing (1) comprises a data memory unit (12), a keyboard (6), a display (7) and a data transmission interface (8) connected to the microprocessor (9). 5) Dispositif selon la revendication 3 ou Ia revendication 4 caractérisé en ce que le microprocesseur (9) est programmé pour calculer, à partir de données acquises du détecteur, les valeurs instantanées de l'intensité de la radiation ultraviolette solaire directe et globale, de stocker ces valeurs en mémoire, de calculer le rapport radiation directe/radiation globale, d'afficher ces vaIeurs où un affichage existe, de calculer énergie totale reçue par le détecteur pendant une période de temps spécifiée et d'afficher, où un affichage existe, la valeur de énergie totale reçue. 5) Device according to claim 3 or Ia claim 4 characterized in that the microprocessor (9) is programmed to calculate, from data acquired from the detector, the instantaneous values of the intensity of direct and global solar ultraviolet radiation, of store these values in memory, calculate the direct radiation / global radiation ratio, display these values where a display exists, calculate the total energy received by the detector for a specified period of time and display, where a display exists, the total energy value received. 6) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le couvercle du boitier (4) et le collimateur (5) comportent un oeilleton (13) et un bouton de mire (14), l'oeilleton et Ie bouton de mire étant disposés de telle façon que, quand le faisceau de lumière qui traverse l'oeilleton tombe sur le bouton de mire, le coIIimateur est ajusté sur Ia source de la lumière. 6) Device according to any one of the preceding claims, characterized in that the housing cover (4) and the collimator (5) comprise an eyepiece (13) and a test pattern (14), the eyecup and the the test pattern being arranged in such a way that when the beam of light passing through the eyecup falls on the test pattern, the collimator is adjusted to the light source. 7) Dispositif selon rune quelconque des revendications précédentes caractérisé en ce que le boitier (1) comporte une projection annulaire (15) muni de pas de vis afin de recevoir une pièce de fixation taraudée (16) qui fixe le détecteur (2) et le filtre (3) au boitier. 7) Device according to any one of the preceding claims characterized in that the housing (1) comprises an annular projection (15) provided with threads in order to receive a threaded fixing part (16) which fixes the detector (2) and the filter (3) in the housing. 8) Dispositif selon I'une quelconque des revendications précédentes caractérisé en ce que le boitier (1) comporte des cellules photovoltaïques (17) afin de fournir l'énergie de fonctionnement du dispositif.  8) Device according to any one of the preceding claims, characterized in that the housing (1) comprises photovoltaic cells (17) in order to supply the operating energy of the device.
FR9116505A 1991-12-31 1991-12-31 Device for measuring ultraviolet solar radiation Pending FR2685767A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9116505A FR2685767A1 (en) 1991-12-31 1991-12-31 Device for measuring ultraviolet solar radiation

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Application Number Priority Date Filing Date Title
FR9116505A FR2685767A1 (en) 1991-12-31 1991-12-31 Device for measuring ultraviolet solar radiation

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FR2685767A1 true FR2685767A1 (en) 1993-07-02

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759212U (en) * 1957-11-05 1958-01-02 Friedrich Dipl Phys Dr Volz SMALL PHOTOMETER TO MEASURE THE DIRECT SUNLIGHT.
DE6604080U (en) * 1966-10-18 1969-12-11 Gossen & Co Gmbh P UNIVERSALLY APPLICABLE LIGHT MEASURING DEVICE
US3891326A (en) * 1974-01-14 1975-06-24 Frederic E Volz Multi-channel sun photometer
GB1454620A (en) * 1973-09-18 1976-11-03 Biviator Sa Device for measuring the dose of ultraviolet radiation in the erythema-effective range
US4055761A (en) * 1975-03-14 1977-10-25 Nippon Kogaku K.K. Light receiving device for photoelectric conversion element
JPS58201033A (en) * 1982-05-19 1983-11-22 Nec Corp Solar battery type pyrheliometer
US4915500A (en) * 1985-08-16 1990-04-10 The United States Of America As Represented By The Department Of Energy Multichannel optical sensing device
DE4012984A1 (en) * 1990-04-24 1991-10-31 Edgar Hoehn Personal UV dosimeter - for use by sun-bather to indicate sunburn risk

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759212U (en) * 1957-11-05 1958-01-02 Friedrich Dipl Phys Dr Volz SMALL PHOTOMETER TO MEASURE THE DIRECT SUNLIGHT.
DE6604080U (en) * 1966-10-18 1969-12-11 Gossen & Co Gmbh P UNIVERSALLY APPLICABLE LIGHT MEASURING DEVICE
GB1454620A (en) * 1973-09-18 1976-11-03 Biviator Sa Device for measuring the dose of ultraviolet radiation in the erythema-effective range
US3891326A (en) * 1974-01-14 1975-06-24 Frederic E Volz Multi-channel sun photometer
US4055761A (en) * 1975-03-14 1977-10-25 Nippon Kogaku K.K. Light receiving device for photoelectric conversion element
JPS58201033A (en) * 1982-05-19 1983-11-22 Nec Corp Solar battery type pyrheliometer
US4915500A (en) * 1985-08-16 1990-04-10 The United States Of America As Represented By The Department Of Energy Multichannel optical sensing device
DE4012984A1 (en) * 1990-04-24 1991-10-31 Edgar Hoehn Personal UV dosimeter - for use by sun-bather to indicate sunburn risk

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 51 (P-259)8 Mars 1984 & JP-A-58 201 033 ( NIPPON DENKI K. K. ) 22 Novembre 1983 *

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