{"id":8600,"date":"2008-02-17T21:43:59","date_gmt":"2008-02-17T21:43:59","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/sky-quality-meter-mode-demploi-sky-easy-meter\/"},"modified":"2025-06-08T22:49:00","modified_gmt":"2025-06-08T20:49:00","slug":"sky-quality-meter-mode-demploi-sky-easy-meter","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/sky-quality-meter-mode-demploi-sky-easy-meter\/","title":{"rendered":"Sky Quality Meter – Mode d’emploi = Sky Easy Meter"},"content":{"rendered":"

Sous l’impulsion finale de Manu, voici un mini mode d’emploi du SQM.<\/p>\n

1.\tIntroduction
\n2.\tDescription synth\u00e9tique
\n3.\tUtilisation \u2013 Qualit\u00e9 du ciel
\n4.\tInformation compl\u00e9mentaires<\/p>\n

1.\tIntroduction
\nLe GAS a r\u00e9cemment fait l\u2019acquisition d\u2019un instrument d\u2019\u00e9valuation de la qualit\u00e9 du ciel: le Sky Quality meter. Ci-dessous, vous en trouvez une br\u00e8ve description.<\/p>\n

2.\tDescription synth\u00e9tique
\n \"\"<\/a><\/p>\n

– Le capteur se situe \u00e0 c\u00f4t\u00e9 de l\u2019indicateur, sous la fen\u00eatre circulaire.
\n – Sensibilit\u00e9 dans le domaine de la lumi\u00e8re visible. Le rayonnement infra-rouge est rejet\u00e9 par un filtre.
\n – L\u2018angle de mesure du SQM est de ~80 DegC.
\n – La mesure est compens\u00e9e en temp\u00e9rature
\n – Unit\u00e9 de mesure: Mag\/ArcSec\u00b2, mesure logarithmique. Le sch\u00e9ma sur le bo\u00eetier de l\u2019appareil apporte une aide \u00e0 l\u2019interpr\u00e9tation des r\u00e9sultats
\n – Pr\u00e9cision : ~+\/-0.1 Mag\/ArcSec\u00b2
\n – Pile 9V<\/p>\n

3.\tUtilisation \u2013 Qualit\u00e9 du ciel<\/p>\n

– Pointer le capteur vers la zone cible, id\u00e9alement le z\u00e9nith. Maintenir la position pendant la dur\u00e9e de la mesure
\n – Eviter l\u2019exposition \u00e0 une source directe de lumi\u00e8re
\n – Donner une pression courte sur le bouton
\n – Pendant la phase de mesure, le SQM \u00e9met un l\u00e9ger bip sonore; \u00e0 la fin de la s\u00e9quence de mesure, le r\u00e9sultat s\u2019affiche pendant 10sec (Plus de bip sonore).
\n – La mesure est imm\u00e9diate sous une ambiance pollu\u00e9e, et peut durer jusqu\u2019\u00e0 1 minute sous un ciel tr\u00e8s sombre.
\n – Am\u00e9lioration de la pr\u00e9cision de la mesure: faire plusieurs mesures, et rejeter la premi\u00e8re.
\n – Indications \u00d5 \u00d5 \u00d5 \u00d5 ou UUUU: mesure non valide<\/p>\n

– Utilisation \u2013 Mesure de temp\u00e9rature
\n – Presser le bouton une seconde fois
\n – Affichage en DegC<\/p>\n

Conversion d\u2019unit\u00e9
\n – [valeur en cd\/m2] = 10.8\u00d7104 \u00d7 10(-0.4*[valeur en mag\/arcsec2])
\n – Le site du fabricant propose un calcul en ligne: http:\/\/unihedron.com\/projects\/darksky\/magconv.php?PHPSESSID=51114c558525843e0c79daf35d79e731<\/a><\/p>\n

Conversion en magnitude visible:
\nSource: http:\/\/unihedron.com\/projects\/darksky\/images\/MPSASvsNELM.jpg<\/a>
\n\"\"<\/a> <\/p>\n

4.\tInformations compl\u00e9mentaires<\/p>\n

– Fabricant
\nUnihedron \/ USA
\nhttp:\/\/unihedron.com\/<\/a>
\nhttp:\/\/unihedron.com\/projects\/darksky\/<\/a><\/p>\n

– Capteur: TAOS TSL237S
\nhttp:\/\/www.taosinc.com\/product_detail.asp?cateid=2&proid=52<\/a>
\nhttp:\/\/www.taosinc.com\/images\/product\/document\/TSL237-E33.pdf<\/a><\/p>\n

– Filtre infra-rouge
\nhttp:\/\/www.hoyaopticalfilters.co.uk\/<\/a>
\nhttp:\/\/www.uqgoptics.com\/pdf\/Hoya%20CM-500.pdf<\/a><\/p>\n\n\n

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\n Veuillez voter<\/span>\n <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Sous l’impulsion finale de Manu, voici un mini mode d’emploi du SQM. 1. Introduction 2. Description synth\u00e9tique 3. Utilisation \u2013 Qualit\u00e9 du ciel 4. Information compl\u00e9mentaires 1. Introduction Le GAS a r\u00e9cemment fait l\u2019acquisition d\u2019un instrument d\u2019\u00e9valuation de la qualit\u00e9 du ciel: le Sky Quality meter. Ci-dessous, vous en trouvez une br\u00e8ve description. 2. Description […]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-8600","post","type-post","status-publish","format-standard","hentry","category-astrobricolage"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=8600"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8600\/revisions"}],"predecessor-version":[{"id":13080,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8600\/revisions\/13080"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=8600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=8600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=8600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}