Chifukwa chiyani kuwala kwa msewu wa LED kuli chisankho chabwino kwambiri panyengo yamvula komanso yachifunga?

Chifunga ndi mvula ndizofala. Muzochitika zochepazi, kuyendetsa galimoto kapena kuyenda pamsewu kungakhale kovuta kwa madalaivala ndi oyenda pansi, koma teknoloji yamakono yowunikira msewu wa LED ikupereka oyenda maulendo otetezeka.

Kuwala kwa msewu wa LEDndi gwero lowala lozizira, lomwe lili ndi mawonekedwe oteteza chilengedwe, osawononga chilengedwe, kugwiritsa ntchito mphamvu zochepa, kuwala kowala kwambiri, komanso moyo wautali. Chifukwa chake, kuwala kwa msewu wa LED kudzakhala chisankho chabwino kwambiri pakukonzanso zopulumutsa mphamvu pakuwunikira misewu. Kuwala kwa msewu wa LED ndi gwero lamphamvu lamphamvu lamphamvu lokhazikika pa semiconductor pn junction, lomwe limatha kutulutsa kuwala ndi mphamvu zopanda mphamvu zamagetsi. Pansi pa voteji yazabwino komanso jekeseni wamakono, mabowo omwe amabadwira mu p-region ndi ma elekitironi omwe amabadwira mu n-region amafalikira kudera logwira ntchito pambuyo pophatikizananso ndi kutulutsa mafotoni, kutembenuza mwachindunji mphamvu yamagetsi kukhala mphamvu yowunikira. Kuwala kwa msewu wa LED ndi gwero lamphamvu lamphamvu lamphamvu lokhazikika pa semiconductor pn junction, lomwe limatha kutulutsa kuwala ndi mphamvu zopanda mphamvu zamagetsi. Pansi pa voteji yazabwino komanso jekeseni wamakono, mabowo omwe amabadwira mu p-region ndi ma elekitironi omwe amabadwira mu n-region amafalikira kudera logwira ntchito pambuyo pophatikizananso ndi kutulutsa mafotoni, kutembenuza mwachindunji mphamvu yamagetsi kukhala mphamvu yowunikira.

Ubwino wa kuwala kwa msewu wa LED mu chifunga ndi mvula zitha kuwonetsedwa m'magawo atatu:

1. Mayendedwe achilengedwe a kuwala kotulutsa;

2. Makhalidwe a kutalika kwa ma LED oyera;

3. Mafupipafupi a kutalika kwa mawonekedwe awa poyerekeza ndi magwero ena a kuwala.

Kusiyanitsa pakati pa kuunikira kwa LED ndi magwero ena onse ounikira ndi kutalika kwake komwe kumatulutsa mphamvu, ndi momwe madontho amadzi amachitira kapena kukhudza mtengo pamtunda umenewo, makamaka kukula kwa madontho a madzi akusintha.

Magwero owunikira omwe makamaka amatulutsa mphamvu yowunikira mumitundu yowoneka bwino ya buluu, monga ma LED, amagwira ntchito bwino kuposa magwero ena owunikira omwe sawoneka bwino.

Kuwala m'dera la violet lamtundu wa spectral kumakhala ndi mafunde afupiafupi kusiyana ndi kuwala kudera lofiira. Nthunzi wamadzi mumlengalenga nthawi zambiri umadutsa kuwala kofiira ngati lalanje, koma umakonda kumwaza kuwala kwa buluu. Izi zitha kukhala chifukwa chakuti tinthu tating'ono tamadzi nthawi zambiri timafanana ndi mafunde a buluu. Choncho, pamene thambo liri bwino pambuyo pa mvula kapena mpweya umakhala bwino m'dzinja (pamakhala tinthu tating'ono tating'ono ting'onoting'ono mlengalenga, makamaka kufalikira kwa maselo), pansi pa mphamvu yobalalika ya mamolekyu a mumlengalenga, kuwala kwa buluu kumabalalika kudzaza mlengalenga. ndipo thambo likuwoneka labuluu. Chodabwitsa ichi chimadziwika kuti Rayleigh kubalalitsa.

M'malo osawoneka bwino, tinthu tating'onoting'ono timakula kukula mpaka pomwe safanananso kukula ndi mafunde amtundu wa buluu. Panthawi imeneyi, amafanana ndi kukula kwake ndi mafunde achikasu-lalanje-wofiira. Tinthu tating'onoting'ono tamadzi timamwaza ndi kupondereza kuwala m'maguluwa, koma kumadutsa kuwala kwa buluu. Ichi ndichifukwa chake kuwala kwa dzuwa nthawi zina kumawoneka ngati bluish kapena kubiriwira chifukwa cha chifunga.

Kuchokera pakukula kwa tinthu tamadzi mpaka kutalika kwa mawonekedwe, magetsi amsewu a LED ndiye chisankho chabwino kwambiri pazowoneka zotsika. Kutentha kwamtundu ndi kuyatsa kumapanga mikhalidwe yabwino kwambiri yamsewu pamvula ndi chifunga. Mwa kuwongolera mawonekedwe, magetsi amsewu a LED amasunga misewu kukhala yotetezeka m'mvula yamkuntho komanso malo a chifunga.

Ngati mukufuna kuwala kwa msewu wa LED, kulandiridwa kuti mulankhule ndi wopanga kuwala kwa msewu wa LED TIANXIANG kutiWerengani zambiri.