Dab tsi yog tus neeg saib xyuas duab?
Dab tsi yog tus neeg saib xyuas duab?

Video: Dab tsi yog tus neeg saib xyuas duab?

Video: Dab tsi yog tus neeg saib xyuas duab?
Video: Qhia saib yus tus hlub lub xov tooj seb nws kov txog dab tsi thaum yus nyob deb 2024, Kaum ib hlis
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photoconductor - Computer txhais

Hom khoom siv feem ntau siv hauv photodetector. Nws nce nws cov hluav taws xob conductivity thaum raug teeb. Saib photodetector thiab photoelectric.

Ib yam li ntawd, tus neeg saib xyuas cov duab twg feem ntau siv?

Lead sulfide (PbS) tau raug lees paub tias yog cov khoom siv photoconductive rau lub teeb infrared thaum ntxov, thiab haum rau wavelengths txog ≈3 Μm.

Tom qab, lo lus nug yog, Selenium A photoconductor? Selenium yog ib tug zoo conductor ntawm hluav taws xob nyob rau hauv lub xub ntiag ntawm lub teeb. Qhov tshwm sim no hu ua photoconductivity.

Tom qab ntawd, ib tug kuj yuav nug, lub photoconductor ua haujlwm li cas?

A photoconductor yog ntawm hom qub: tsis muaj qhov hluav taws xob conduction nyob ze ntawm qhov kawg ib qib puv valence yog li nws yog ib qho insulator. Tab sis nws dhau los ua tus neeg xyuas pib thaum raug teeb pom kev zoo vim lub teeb ua tau txav cov valence qib electrons mus rau hauv cov khoom siv khoob khoob ntawm ntau lub zog ntau dua.

Dab tsi yog qhov txawv ntawm photovoltaic thiab photoconductive?

Cov qhov sib txawv ntawm ob qho khoom siv yog qhov ntawd photoconductive detector siv qhov nce hauv hluav taws xob conductivity uas tshwm sim los ntawm qhov nce hauv tus naj npawb ntawm cov cab kuj pub dawb tsim thaum photons absorbed, thaum lub photovoltaic tam sim no yog generated los ntawm kev nqus ntawm photons ntawm ib tug voltage

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