Ngingazi kanjani ukuthi i-PPFD yokukhanya ifanelekile (Kude kangakanani)?

Ake sethule kafushane ukuthi iyini i-PPFD.

I-PPFD , noma  i-Photosynthetic Photon Flux Density , ibhekisela enanini lezinhlayiya zokukhanya (amaphothoni) ezihlala kumitha yesikwele ngomzuzwana ngaphakathi kobubanzi bemisebe ye-photosynthetically asebenzayo (PAR).

Ungacabanga ngokukhanya njengamathonsi emvula aphuma kuma-chips e-LED. I-PPFD isitshela ukuthi mangaki alawo maconsi awela endaweni ethile ngobude obuthile umzuzwana ngamunye. Njengoba ukukhanya kusabalala njengoba kuhamba, i-PPFD iyancipha njengoba indawo yokumboza ikhula.

1. Ngokombono wokuklama

Izinto ezithinta i-PPFD yilezi:

• Ukusatshalaliswa kwama-chips e-LED

• I-engeli ye-beam yokukhanya

Ukusabalalisa

Umehluko omkhulu phakathi kwezibani  zesitayela sebhodi (PCB)  kanye  nesitayela sebha (BAR)  usekuthi ama-chips ahlelwa kanjani. Izibani zebhodi zigxilisa ama-LED endaweni encane, kuyilapho izibani zebha ziwasakaza. Ngakho-ke ngisho nangamandla afanayo, ukufana kwawo okukhanyayo kuhlukile.

Kufana nokusebenzisa ithoshi — ngamandla angashintshi, awukwazi ukuthola kokubili ukukhanya okubanzi nokukhanya okuphezulu ngesikhathi esisodwa.

I-engeli ye-Beam

Esinye isici esibalulekile i-engeli ye-beam. Ama-LED angahlonyiswa ngamalensi ukuze alawule ukuthi ukukhanya kusabalele kangakanani noma kunciphise kangakanani — njengokugxilisa isikhombi se-laser.

Isibonelo esisodwa i-  SANlight GmbH  (Kwesinye isiqephu, senze ukuhlaziya okufushane komkhiqizo we- TOP 20 yohlobo olusha oluseshiwe olukhulayo ngo-2025. Chofoza lapha ukuze weqe ), 

esebenzisa amalensi ukunweba ukumbozwa kwezibani zayo zesitayela sebhodi elihlangene. Umphumela uba into encane enokufana kokukhanya okufana nesibani sebha - konke sibonga ilensi.

Nokho, lo mklamo uza nezingozi:

Okubalulekile kwelensi kuyikhwalithi ephansi → ukulahlekelwa ukukhanya → ukwakheka kokushisa → ukuguga kwamalensi → ukulahlekelwa ukukhanya okwengeziwe.

Lokhu kudala umjikelezo ononya. Yingakho kubalulekile ukunaka kokubili  ikhwalithi yelensi  kanye  nokuchithwa kokushisa . I-SANlight GmbH ibonakala ikwazi lokhu futhi igqamisa zombili izici ekukhangiseni kwayo.

Lowo umbono ojwayelekile ngemuva kwesakhiwo se-LED nama-engeli e-beam. Kodwa ukwakheka komkhiqizo kuya kujula - futhi inkinga eyodwa ebalulekile ukugqagqana kokukhanya.

Ukugqagqana kokukhanya akwenzeki nje phakathi kwezibani ezahlukene. Ngisho nangaphakathi kwendawo eyodwa, i-chip ngayinye ye-LED ikhipha amaphethini okukhanya agqagqene. Kungakho abakhiqizi abanemininingwane eminingi bebala ukuminyana kwe-LED kunokumane bawahlukanise ngokulinganayo.

2. Ngokombono wokusetshenziswa

Izinto eziyinhloko ezithinta i-PPFD yilezi:  Ukuphakama kokukhweza & Ukubekwa kokukhanya

Phakamisa ukukhanya, bese i-PPFD yehla. Yehlise, futhi i-PPFD iyanda. Lapho izibani ezimbili zibekwe eduze ndawonye, ​​indawo egqagqene ithola i-PPFD ephezulu. Ngalezi zimiso, ungalungisa ukusetha kwakho ukuze ufinyelele i-PPFD efanelekile yezitshalo zakho.

3. Ungawafunda kanjani amashadi we-PPFD womkhiqizi:

Hlola ubude bokuhlola 

- amanye amashadi akalwa ku-30cm, amanye ngo-60cm. Ukuphakama okuhlukile kuholela kumanani e-PPFD ahluke kakhulu.

Hlola ukufana

 - ukukhanya okuhle akugcini ngokugqama, kusabalalisa ukukhanya ngokulinganayo.

Bheka ukuthi izinombolo zihluka kangakanani eshadini lonke. Uma isikhungo singu-1200 µmol/m²/s kodwa imiphetho ingu-500 kuphela, izifanele kangcono izindawo ezikhulayo ezincane.

Isinyathelo 1: Wattage

Kusukela esihlokweni nakwimodeli, singasho ukuthi imikhiqizo emibili ingu-810W kanye ne-1080W ngokulandelanayo.
Imodeli ye-1080W ngokusobala inamandla okushisa aphezulu, okusho ukuthi ingaletha amandla okukhanya aphezulu (PPFD). Lokhu kuyenza ifaneleke kakhulu ezitshalweni ezinezidingo zokukhanya okuphezulu noma izindawo ezitshalwe ngokuminyene.

Isinyathelo sesi-2: Indawo Ehlanganisiwe
Zombili izibani zihlolwa ezindaweni ezingu-3ft × 3ft (cishe 90cm × 90cm) noma 150cm × 150cm, okubonisa ukuthi zakhelwe osayizi bendawo yokukhula efanayo, njengetende elivamile lokukhula.

Isinyathelo sesi-3: Ukuphakama Kwesivivinyo
Kubili ubude bokuhlolwa: 30cm kanye no-60cm. Uma uqhathanisa, kubalulekile ukuphakama kuyafana, njengoba ukuphakama kuyisici esibalulekile ekulawuleni kokubili i-PPFD nokufana kokukhanya.

Isinyathelo sesi-4: Ukuhlaziywa Kwenani le-PPFD

Ukusebenzisa i-GL-QB810W njengesibonelo

• Ku-30cm:
  • Isiqongo esimaphakathi: 2005
  • Unqenqema oluphansi kakhulu: 295
  → Kunomehluko omkhulu ekusabalaliseni ukukhanya phakathi kwendawo emaphakathi namachopho.

• Ku-60cm:
  • Maphakathi: 1445
  • I-Edge: 402
  → Ukusabalalisa kulinganayo, nokuhlanganisa okungcono.

Kusuka ekuhlaziyweni okungenhla, singabona cishe ukuthi amanani e-PPFD akhombisa ukusatshalaliswa kokukhanya okungalingani, ngokukhanya okwengeziwe ohlangothini olulodwa kunolunye. Kuphinde kube nomehluko omkhulu phakathi kwesikhungo namaphethelo, okuwuphawu oluqinile lokuthi lokhu kungase kube ukukhanya kohlobo lwe-PCB.

Okokugcina, cabanga ukuthenga imitha ye-PPFD. Kuyithuluzi elilula elikuvumela ukuthi ulinganise ukukhanya ezindaweni ezihlukene. Uzokwazi ukushuna kahle ubude bokukhanya kwakho okukhulayo nesikhala, wenze lonke uhlelo lwakho lokukhanyisa lunembe futhi lusebenze kahle

Lapho ukukhanya kukhula khona, nolwazi luyanda. Ngethemba ukuthi wonke umuntu ukhuthazekile ngokwabelana!