Photoelectric ntaus ntawv muaj pes tsawg leeg
1.Photoresistor
Cov khoom siv feem ntau siv tshuaj kho mob yog photosensitive resistors. Tus photoresistor muaj cov nqi kuj tsis tshua muaj nyob hauv qhov tsis muaj qhov pom kev tsis pom kev. Thaum nws raug ntawm lub teeb, qhov tsis kam hloov dua thiab qhov kev coj ua zoo dua. Cov tsis tseem ceeb ntawm qhov photoresistor yog Qhov tsaus tsis kam, qhov tsaus ntuj tam sim no, coj tus cwj pwm ntawm lub teeb ci, qhov kaj tam sim no. Lawv ntsuas qhov tseem ceeb hauv qhov pom kev tsis pom kev thiab tsis muaj qhov ci, ntsig txog. Qhov ntau dua qhov sib txawv ntawm qhov kaj tiv taus thiab tsaus nti tsis kam, qhov zoo dua. Hauv kev xaiv ntawm photoresistor Kuj xyuam xim rau nws cov teeb pom kev zoo, cov yam ntxwv spectral. [2]
2. Photodiode
Lub tshuab photodiode ua haujlwm nyob rau hauv off-state nyob rau hauv qhov xwm txheej ntawm qhov tsis muaj teeb pom kev zoo, thiab muaj cov yam ntxwv zoo ib yam li ntawm cov diode dav dav. Nws muaj ib leeg-kev ua yeeb yam. Thaum cuam tshuam nrog lub teeb, cov cab kuj mloog hauv PN cheeb tsam yog ntau zog, thiab cov cab kuj ntws los tsim ua photocurrent. Cov.
3. Kws thaij duab
Qhov sib txawv ntawm phototransistor thiab triode zoo tib yam yog tias qhov loj ntawm emitter yog tus me. Thaum lub teeb ci ntsa iab tsis pom kev zoo, lub photocurrent yuav luag sib npaug ntawm lub hauv paus tam sim no ntawm cov triode zoo tib yam. Tus phototransistor rhiab dua li lub photodiode.
4. Photocell
Hauv kev coj ua, kev siv ntau dua photocells yog silicon photocells. Nws tuaj yeem hloov lub teeb hluav taws xob ncaj qha rau hauv hluav taws xob lub zog. Ib qho tseem ceeb ntawm cov photocells yog tias qhov tam sim no hauv luv Circuit Court yog muaj feem cuam tshuam rau txoj kab teeb ci. Hauv daim ntawv thov, lub load tsis kam yog feem ntau me me. Cov me qhov tsis kam, nws zoo dua cov kab.
5. Photocell
Cov Photocells feem ntau muab faib mus rau lub tshuab nqus tsev photocells thiab cov roj photocells. Inotatable phototubes feem ntau ntim nrog argon lossis argon-helium sib xyaw roj av, uas yog txhua cov roj tsis muaj zog thiab muaj qhov hnyav me me. Qhov tsis muaj aerated phototubes yog tias qhov rhiab heev lwj sai sai.
6. Photomultiplier lub raj
Photomultiplier raj feem ntau yog tsim ntawm cathode chamber thiab lub zog ua haujlwm ntawm kev ua haujlwm ua kom muaj zog. Cov yam ntxwv ntawm tus yees ntawm lub raj photomultiplier yog cov kab tawm thaum lub luminous flux yog me. Vim tias muaj qhov tsaus ntuj tam sim no ntawm lub raj photomultiplier, qhov tsawg tsawg ntawm kev ntsuas tsawg tsawg.