Paʻi kiʻi
He mea ʻike i ka mālamalama.Hoʻohana ʻia no nā mika kukui paʻi kiʻi, nā kukui alanui ma ke ahiahi a me nā noi ʻē aʻe e pili ana i ka mālamalama, hoʻololi ke kiʻi paʻi kiʻi i kona kū kūʻē ʻana ma waena o kāna mau pahu ʻelua e pili ana i ka helu o nā photons (mālamalama) i loaʻa iā ia.Ua kapa ʻia ʻo "photodetector," "photoresistor" a me "light dependent resistor" (LDR).
ʻO ka mea semiconductor o ka photocell he cadmium sulfide (CdS), akā hoʻohana ʻia nā mea ʻē aʻe.Hoʻohana ʻia nā photocells a me nā photodiodes no nā noi like;akā naʻe, hele ka paʻi kiʻi paʻi kiʻi i kēia manawa ma ka ʻaoʻao ʻelua, akā ʻo ka photodiode he unidirectional.
Photodiode
He mea ʻike kukui (photodetector) e hiki ai ke kahe ʻana o ke au ma kekahi ʻaoʻao mai kekahi ʻaoʻao a i kekahi ʻaoʻao i ka wā e komo ai i nā kiʻi (mālamalama).ʻOi aku ka māmā, ʻoi aku ka nui o kēia manawa.Hoʻohana ʻia no ka ʻike ʻana i ka mālamalama i loko o nā mea ʻike pahupaʻikiʻi, nā fiber optical a me nā noi ʻē aʻe e ʻike ʻia, ʻo ka photodiode ka mea kūʻē i kahi diode māmā (e ʻike i ka LED).ʻIke nā Photodiodes i ka mālamalama a hoʻokuʻu i ka uila;Loaʻa i nā LED ka uila a hāʻawi i ka mālamalama.
He Photodiodes nā Kelepona Solar
ʻO nā pūnaewele lā he photodiodes i mālama ʻia (doped) ʻokoʻa ma mua o ka photodiode i hoʻohana ʻia ma ke ʻano he hoʻololi a relay.Ke hahau ʻia nā cell solar e ka mālamalama, ʻoliʻoli kā lākou mea silika i kahi mokuʻāina kahi i hana ʻia ai kahi au uila liʻiliʻi.Pono nā ʻāpana he nui o nā photodiodes solar cell e mana i ka hale.
Phototransistor
ʻO kahi transistor e hoʻohana ana i ka māmā ma mua o ka uila e hoʻoheheʻe i kahi au uila mai kekahi ʻaoʻao a i kekahi ʻaoʻao.Hoʻohana ʻia ia i nā ʻano ʻike like ʻole e ʻike i ke alo o ka mālamalama.Hoʻohui pū ʻia nā Phototransistors i kahi photodiode a me transistor e hoʻohua i nā mea hou aku ma mua o kahi photodiode wale nō.
Kiʻi uila
Ka hoʻololi ʻana i nā kiʻi kiʻi i nā electron.Ke hoʻokuʻu ʻia ka mālamalama ma luna o kahi metala, hoʻokuʻu ʻia nā electrons mai kona mau mana.ʻO ke kiʻekiʻe o ke alapine māmā, ʻoi aku ka nui o ka ikehu electron i hoʻokuʻu ʻia.Hana nā mea ʻike kiʻi kiʻi o nā ʻano a pau ma kēia kumu, no ka laʻana, photocell, a ʻo ka photovoltaic cell he mea uila.Manaʻo lākou i ka māmā a hoʻoheheʻe ʻia kahi au uila.
kūkulu hale
ʻO ka photocell he paipu aniani i hoʻokuʻu ʻia i loko o ʻelua electrodes emitter a me ka ʻohi.ʻO ke ʻano o ka emitter i ke ʻano o kahi pahu semi-hollow.mālama mau ʻia ma kahi kūpono ʻole.ʻO ka mea hōʻiliʻili ma ke ʻano o ke koʻokoʻo metala a hoʻopaʻa ʻia ma ke axis o ka semi-cylindrical emitter.mālama mau ʻia ka mea ʻohi i kahi kūpono kūpono.ua hoʻokomo ʻia ka paipu aniani ma kahi kumu non-metallic a hāʻawi ʻia nā pine ma ke kumu no ka pili waho.
wokring
ua pili ka emitter i ka pahu ku'eku'e a ua pili ka mea 'ohi i ka hopena maika'i o ka pila.ʻOi aku ka pāhawewe o ka alapine (frequency) ma mua o ka paepae paepae o nā mea o ka emitter i hana ʻia ma luna o ka emitter.lawe ʻia ka paʻi kiʻi.Ua huki ʻia nā kiʻi-electrons i ka mea hōʻiliʻili maikaʻi ka wrt i ka emitter no laila ke kahe nei i ke kaapuni.inā hoʻonui ʻia ka ikaika o ka radiation hanana, e piʻi ana ke kiʻi kiʻi kiʻi.
ʻO kā mākou kūlana noi photocontrol ʻē aʻe
ʻO ka hana o ka hoʻololi photocell ka ʻike ʻana i nā pae o ka mālamalama mai ka lā, a laila hoʻā a hoʻopau paha i nā mea paʻa i hoʻopaʻa ʻia iā lākou.Hiki ke hoʻohana ʻia kēia ʻenehana i nā ʻano he nui, akā ʻo kekahi o nā hiʻohiʻona maʻamau ʻo ia nā kukui alanui.Mahalo i nā mea ʻike kiʻi paʻi kiʻi a me nā hoʻololi, hiki ke hoʻohuli ʻia a hoʻopau ʻia lākou a pau a kūʻokoʻa ma muli o ka napoʻo ʻana o ka lā a me ka puka ʻana o ka lā.He ala maikaʻi kēia e mālama ai i ka ikehu, loaʻa i nā kukui palekana ʻakomi a i ʻole e hoʻomālamalama i kāu mau kukui māla i kou ala i ka pō me ka ʻole e hoʻā.Nui nā ala like ʻole e hoʻohana ai i nā kiʻi paʻi kiʻi no nā kukui waho, no ka hale noho, ʻoihana a ʻoihana paha.Pono ʻoe e loaʻa i hoʻokahi kiʻi kiʻi kiʻi i hoʻopaʻa ʻia i kahi kaapuni i hiki ke hoʻomalu i nā mea paʻa a pau, no laila ʻaʻohe pono e kūʻai i hoʻokahi kī no ke kukui.
Nui nā ʻano like ʻole o nā hoʻololi kiʻi paʻi kiʻi a me nā mana, kūpono nā mea āpau no nā kūlana like ʻole a me nā pono like ʻole.ʻO ka hoʻololi maʻalahi i ka mauna, ʻo ia ke kumu hoʻokomo photocells.He maʻalahi loa ka hoʻouka ʻana i nā mana swivel akā hāʻawi i ka maʻalahi.ʻOi aku ka paʻakikī o ka hoʻouka ʻana i nā mana kiʻi Twist-Lock, akā ʻoi aku ka ikaika o lākou a ua kūkulu ʻia e pale i nā haʻalulu a me nā hopena liʻiliʻi me ka ʻole o ka haki ʻana a i ʻole ka hoʻokaʻawale ʻana i ke kaapuni.Ua kūpono nā kiʻi kiʻi pihi i nā kukui o waho, i hoʻolālā ʻia e kau maʻalahi i ka pou.
Kumu ʻikepili hiki ke loaʻa:
1. www.pcmag.com/encyclopedia/term/photocell
2. lightbulbsurplus.com/parts-components/photocell/
3. learn.adafruit.com/photocells
4. thefactfactor.com/facts/pure_science/physics/photoelectric-cell/4896/
5. www.elprocus.com/phototransistor-basics-circuit-diagram-advantages-applications/
Ka manawa hoʻouna: Iulai-16-2021