Nkhani

The ambient light sensormakamaka amapangidwa ndi zinthu zowoneka bwino.Zigawo za Photosensitive zakula mwachangu, mitundu yambiri, komanso kugwiritsidwa ntchito kwambiri.Sensa yowunikira zachilengedwe imatha kuzindikira momwe kuwala ikuzungulira ndikudziwitsa chipangizocho kuti chizisintha zokha zowunikira zowunikira kuti zichepetse kugwiritsa ntchito mphamvu kwa chinthucho.Kumbali ina, sensor yowala yozungulira imathandizira chiwonetserocho ndi chithunzi chofewa.Kuwala kwa chilengedwe kukakhala kokwera, mawonekedwe amadzimadzi a kristalo pogwiritsa ntchito kachipangizo kokhala ndi kuwala kozungulira kamakhala kowala kwambiri.Malo akunja akakhala mdima, chiwonetserochi chidzasinthidwa kukhala kuwala kochepa.

Mtunda wowala uli pafupi ndi chip sensor -WH APS 4530A ndi mtundu wa kuwala kwa digito converter.Imaphatikiza masensa apamwamba owunikira zachilengedwe, masensa apamwamba kwambiri komanso nyali za infrared za LED.Fyuluta imapangidwa --infyuluta kuti itseke infuraredi, ndipo imapereka mawonekedwe pafupi ndi momwe maso amunthu amachitira.ALS imatha kugwira ntchito mumdima mpaka kuwala kwa dzuwa, ndipo mtundu womwe wasankhidwa ndi pafupifupi 40dB.Wapawiri -channel linanena bungwe (diso laumunthu ndi bwino), kotero kuti ALS ali ndi chiŵerengero chabwino kuwala pansi pa zinthu zosiyanasiyana kuwala.Fyuluta ya 940nm imapangidwira -sensor (PS) yowunikira chilengedwe.Chifukwa chake, PS imatha kuzindikira kuwala kwa infrared reflex, komwe kumakhala kolondola kwambiri komanso kukana kwambiri.WH4530A ili ndi ntchito yosokoneza yotheka, ndipo ili ndi malire a ALS ndi PS.

Zowunikira zowunikira zachilengedwe zimakhala ndi mdima wocheperako, kuyankha kocheperako, kukhudzika kwakukulu, komanso kusintha kofananira ndi kuwala kwapakali pano;zomangidwa muzambiri-zomvera zinthu, zodziwikiratu pafupi ndi infrared, kuyankha kowoneka bwino pafupi ndi mayendedwe amaso amunthu (wakuda: curve yamunthu yamaso, Blue: Optical resistance response curve, green: ambient light response curve);Kuganizira kwinanso pakusankha sensor yoyenera yowunikira ndikusankha sensa yokhala ndi mayankho owoneka bwino.PIN wamba Photosami diode kapena kukana kwa kuwala (yosasunthika kapena yogwira) palokha ili ndi mawonekedwe owoneka bwino kwambiri, kuphatikiza cheza cha IR komanso kuwala kwa UV.