Monga tonse tikudziwa, pali njira ziwiri zoyesera zomwe zatchulidwa mu CIE121: 1966 Ndime 6.1, CIE127-2007 Ndime 6.2, ndi IES-LM-79-08 Ndime 9.0: Imodzi ndiyo kugwiritsa ntchito gawo lophatikizira kuphatikiza photometer kapena spectroradiometer kuyesa. Kuwala kwa LED. Njira yophatikizira ndiyo njira yoyezera yofananira ya kutulutsa kowala kokwanira (CIE121: 1966 Ndime 6.1.1, CIE127-2007 Ndime 6.2.2, ndi IES-LM-79-08 Ndime 9.0). Ina ndi njira ya photometric pogwiritsa ntchito goniophotometer. Iyi ndiye njira yoyezera mtheradi ya flux yowala. Ngati tigwiritsa ntchito njira yophatikizira ndi njira ya photometric kuyesa nyali yomweyo, kufananiza zotsatira zoyesa, tipeza kuti data yonse yowunikira yowunikira yoyesedwa ndi ziwirizo ndizosiyana kwambiri. Nkhaniyi ikuyang'ana kwambiri kusiyana pakati pa kuyesa kwa lumen kwa nyali za LED mu gawo lophatikizana ndi goniophotometer.
Mfundo ya njira yofunikira yoyesera kutulutsa kowala kokwanira ndikuwongolera mulingo wopepuka wowala. Popeza imayesedwa ndi nyali yokhazikika, sikoyenera kudziwa mawonekedwe a spectral a sphere. Kuwala kowala φTEST (λ) kwa choyesedwa cha nyali ya LED kumawerengedwa poyerekeza ndi nyali yokhazikika. Nthawi zambiri, njira yophatikizira ndiyoyenera nyali zing'onozing'ono zophatikizika za LED ndi magwero ang'onoang'ono a kuwala kwa LED kuti ayese kuchuluka kwa kuwala kokwanira ndi ma chromaticity. Iyi ndiye njira yofananira yoyeserera yowunikira kwathunthu. Njira yophatikizira ili ndi ubwino wa liwiro loyezera mwachangu komanso palibe chipinda chamdima. Voliyumu yaing'ono, pafupi ndi gwero la kuwala, ndiye kuti zotsatira zake zimakhala zolondola.
Komabe, mukamagwiritsa ntchito njira yophatikizira kuyesa nyali zazikuluzikulu za LED, zofooka zake zimakhala zazikulu poyerekeza ndi njira ya photometric. Njira yoyamba ndikugwiritsa ntchito mayeso ofunikira, nyali za LED zimayang'anizana ndi mitundu yosiyanasiyana, magwero a kuwala kwa LED, mababu a LED ozungulira, nyali ya LED, etc., ndi mtundu wa nyali ya LED imakhudza kwambiri chomaliza. mayeso a flux wowala. Panthawi imodzimodziyo, kugwiritsa ntchito njira yophatikizira kumafunikanso kupanga kulinganiza kwa gawo lophatikizana. Nthawi zambiri, ngati mukuyesa nyali za LED, nyali yokhazikika iyenera kukhala ndi mawonekedwe ofanana ndi nyali yoyesedwa, ndipo chowongolera choyera cha LED ndiye chisankho chabwino kwambiri. Zachidziwikire, mitundu ina ya nyali itha kugwiritsidwanso ntchito ngati gwero lowunikira, koma izi zidzakhudza kulondola kwa ma calibration. Chachiwiri ndi kusiyana komwe kumabwera ndi njira yoyesera: Nthawi zambiri, ngati nyali yoyesedwa ikuwalira mozungulira, ndikofunikira kugwiritsa ntchito njira yoyesera ya 4π kukhazikitsa nyali yoyesedwa pakatikati pa gawo lophatikiza (IESLM). -79-08 Ndime 9.2.5). Mayeso amtunduwu amakhala ndi zotsatira zabwino kwambiri. Ngati nyalizo zikuwunikira molunjika, monga magetsi a LED, magetsi apamsewu a LED, ndi zina zotero, nyali yoyesedwa iyenera kuyikidwa pambali pa gawo lophatikizirapo mayeso a 2π (IESLM-79-08 Ndime 9.2.5) . 4π kuphatikiza gawo poyezera njira yoyesera, ngati mphamvu yoyezera ya nyali kapena nyumba ya nyali imatenga nyali yonse yayikulu kukula kwake, mochulukirapo kapena mochepera panthawi yoyesa kudziletsa, kufunikira kogwiritsa ntchito nthawiyi kupanga. kukweza nyali yothandizira Cholakwika ( IESLM-79-08 Ndime 9.1.5). Nthawi zambiri, njira yophatikizira ndiyoyenera nyali zazing'ono zophatikizika za LED komanso magwero ang'onoang'ono a kuwala kwa LED. Kugwiritsa ntchito njira yophatikizira kuyesa nyali zotere za LED kumatha kutsimikizira kulondola komanso kukhazikika kwa zotsatira zowala zowoneka bwino, mwachitsanzo, poyesa nyali zazikuluzikulu za LED. , Kuchepetsa kwa njira yophatikizira ndi yayikulu. Chifukwa chake ndi, monga tafotokozera pamwambapa, ndipo mayeso omaliza owoneka bwino a flux amakhala ndi kusatsimikizika kwina.
Kugwiritsa ntchito mayeso a spectrophotometric Total flux yowala yomwe imagawidwa ndi photometer, kuyesa konsekonse kowoneka bwino sikukhala ndi malire. Photometric Test chiwopsezo chowunikira chowunikira chachikulu cha gwero la kuwala kwa Photometer chimagawidwa mbali zosiyanasiyana za gwero la kuwala (kapena kuwala pamtunda woperekedwa ndi gwero lounikira) mphamvu ya kuwala kwa chipangizocho, mphamvu ya kuwala kwa data kumbali iliyonse. Kuwerengera kuchuluka kwa kuwala kokwanira. Poyerekeza ndi njira yophatikizira, chifukwa cha kusiyana kwa kugawa kwakukulu kwa gwero la kuwala kwa mayeso, njira ya photometric ilibe zolakwika m'lingaliro, kotero ndi njira yoyesera yokwanira yowunikira kuwala kwa LED. Sichifuna kuchuluka kwa kuwala kokwanira, koma zimatenga nthawi yayitali pachitsanzo chilichonse - nthawi yoyezera. Pogwiritsa ntchito njira ya photometric, kuyesa kwa Goniophotometer kudzakhudza Mtundu C Goniophotometer (IES-LM-79-08 Ndime 9.3.1, CIE121: 1996 Ndime 3.2) chipinda chamdima, mtunda woyesera (IES-LM-79-08 Ndime 9.3, CIE121: 1996) Ndime 6.2.1.4 ), Ndi zina zotero. Zinthu zazikulu zomwe zimakhudza kusiyana kwa kuchuluka kwa kuwala kwa goniophotometer ndi mtundu wa goniophotometer, njira yoyesera (CIE121: 1996 Ndime 3.4.2, Ndime 3.4.1 ndi Ndime 3.4.3), mtunda woyeserera, mtunda woyeserera nyali zoyeserera za photometric, Etc., malinga ndi Kuyesa mitundu yosiyanasiyana ya zinthu za LED, titha kusintha njira zoyeserera kapena zida zoyenera; ngati tikumana ndi zinthu za LED zokhala ndi ngodya yopapatiza, titha kusankha Goniophotometer yaying'ono, kusankha Mtundu C Goniophotometer, kusintha mtunda woyezetsa, ndikusankha ma probe apamwamba a Class L a Photometric atha kukwaniritsa kuyezetsa kolondola kwambiri kwa flux yowala. Poyesa kuchuluka kwa kuwala kwa LED, kuyesa kwa photometric kumatha kukwaniritsa muyeso wolondola kwambiri. Chifukwa cha zofooka zachibadwa za njira yophatikizira, zimakhala zovuta kuthetsa cholakwikacho mwa kusintha kwa zipangizo, ndipo zingathe kuchepetsa vutoli. Panthawi imodzimodziyo, kuyesa kwa photometric Zida zofunikira zokha sizikhala zochepa kwambiri, choncho cholakwikacho chikhoza kulipidwa mwa kuwongolera kusintha ndi kuyendetsa zipangizo.
Monga tafotokozera pamwambapa, imodzi mwa njira zosavuta zoyezera kuwala kowala kwa LED ndikugwiritsa ntchito chithunzithunzi cholumikizira mbali. Ndi chipangizo chophatikizika chapakatikati chowoneka bwino. Kugwiritsa ntchito photometer distal yokhazikika kuyeza kuchuluka kwa kuchuluka kwake ndikofulumira komanso kosavuta. Gwiritsani ntchito mulingo wonyezimira wowoneka bwino kuti muwongolere chithunzithunzi chophatikiza chozungulira. Gwero la kuwala koyesera limayesedwa poyerekezera ndi gwero lounikira lokhazikika lomwe lili ndi gawo lofanana la malo ndi mawonekedwe. Chifukwa chake, njira iyi imafunikira gwero lowunikira lokhazikika kuti liwunike kuwala kowala. Poyerekeza ndi tester yogawa kuwala, liwiro loyesa limakhala lofulumira kwambiri, koma pamene kugawa kwapang'onopang'ono kwa kuwala kwa LED, ndi gwero la kuwala sikufanana, n'zosavuta kupanga zolakwika. Zolakwika zamtunduwu ndizovuta kukonza, chifukwa chake ziyenera kupangidwa mwaluso kwambiri ma geometry ndi mitundu yofananira ya ma LED kuti muchepetse cholakwikacho.
Monga tanena kale, kuyandikira kwa mawonekedwe a mayesowo ndikuyandikira gwero la kuwala, m'pamenenso zotsatira za mayeso ophatikizana zizikhala zolondola. Chifukwa chake tikafunika kuyesa mtengo wa nyali, nyali za babu, nyali zing'onozing'ono za LED, nyali zophatikizika za LED, machubu a nyali, ndi nyali zina zokhala ndi ngodya yayikulu kuposa 180 °, titha kugwiritsa ntchito gawo lophatikizira ndi spectrometer poyesa 4π. . Pamagetsi akuluakulu, magetsi owoneka bwino, magetsi apamsewu, ndi nyali zina zokhala ndi ngodya yochepera 180 °, ngati mukufuna kugwiritsa ntchito gawo lophatikizana poyesa, muyenera kugwiritsa ntchito gawo lophatikizira lomwe lili ndi mipata yam'mbali poyesa 2π kapena kugwiritsa ntchito magetsi owonjezera. kuti muthandizidwe Kuyesedwa, kuyesako kumakhala kotopetsa komanso kosatsimikizika. Njira yolondola kwambiri yoyesera yamtundu uwu wa nyali ndikugwiritsa ntchito goniophotometer yokhala ndi chipinda chamdima choyezera. Mutha kupeza zowunikira zowoneka bwino. Komabe, pamene nthawi ya mayeso ndi photometer anagawira, kusiyana njira mayeso ayenera kudziŵika kuti, monga gulu nyali zambiri ntchito C-γ mayeso, kwa magetsi magalimoto ndi spotlights zambiri analimbikitsa mayeso B-β; ikufunikanso Mulingo Chipinda chamdima chimafunikira malo oyeserera akadaulo komanso ogwira ntchito yoyesa kuti agwire ntchito poyerekeza ndi mayeso ophatikiza.
Mwachidule, mfundo zoyezera, chilengedwe, ndi njira zoyesera zophatikizira gawo ndi goniophotometer ndizosiyana, ndipo zotsatira zoyezera ziwirizi sizingafanane. Titha kusankha njira yoyenera yoyesera molingana ndi miyezo yosiyanasiyana komanso zofunikira zosiyanasiyana.
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