Taw qhia rau sensor keyboards
Nov 11, 2021
Qhov hloov pauv induction yog hais txog tib neeg lub cev infrared ntse induction hloov, uas yog qhov hloov pauv uas tau txais kev ua haujlwm thaum ib tus neeg dhau los ntawm cheeb tsam infrared induction nrhiav pom. Lub ntsiab tseem ceeb ntawm tib neeg lub cev infrared sensor hloov yog tib neeg lub cev pyroelectric infrared sensor. Tib neeg lub cev muaj qhov kub thiab txias ntawm lub cev, feem ntau ntawm 37 degrees, yog li nws emits infrared rays nrog ib tug tshwj xeeb wavelength ntawm txog 10μm. Lub passive infrared sojntsuam ntes cov infrared rays tawm los ntawm tib neeg lub cev ntawm li 10μm mus ua hauj lwm. Lub teeb infrared ntawm li 10μm emitted los ntawm tib neeg lub cev yog txhim kho los ntawm Fresnel lim thiab sau rau ntawm qhov chaw infrared sensor. Infrared induction qhov chaw feem ntau siv cov ntsiab lus pyroelectric, uas yuav poob tus nqi sib npaug thaum qhov kub ntawm infrared hluav taws xob ntawm tib neeg lub cev hloov, thiab tso cov nqi tawm mus. Cov tom ntej Circuit Court tuaj yeem ua rau qhov hloov pauv tom qab kuaj pom thiab ua tiav. Yog tias tus neeg tsis tawm ntawm qhov ntsuas qhov ntsuas, qhov hloov pauv yuav txuas ntxiv mus; tom qab tus neeg tawm mus los yog tsis muaj kev nqis tes ua nyob rau hauv qhov chaw hnov mob ntev, qhov kev hloov yuav cia li ncua lub kaw ntawm lub load.
