Lub hauv paus ntsiab lus ntawm pa taws tswb
Infrared beam ntawm lub infrared emission tube yog tawg los ntawm cov pa taws, thiab qhov kev siv ntawm lub teeb tawg yog proportional rau qhov concentration ntawm cov pa luam yeeb. Yog li ntawd, qhov kev siv ntawm infrared beam tau txais los ntawm lub photosensitive raj yuav hloov, uas yog hloov dua siab tshiab rau hauv ib tug hluav taws xob teeb liab, thiab thaum kawg mus rau lub tswb. Cov pa luam yeeb sensor ntawm lub tswb yog tsuas yog ua tiav los ntawm optical labyrinth. Muaj ib txheej ntawm infrared emitting thiab txais photoelectric raj nyob rau hauv lub labyrinth, thiab lub beam lub kaum sab xis yog 135 degrees. Thaum tsis muaj pa luam yeeb nyob rau hauv ib puag ncig, lub raj txais tsis tuaj yeem txais lub teeb infrared emission los ntawm infrared emitting tube, thiab cov qauv tom ntej Circuit Court tsis muaj hluav taws xob teeb liab hloov; Thaum muaj cov pa luam yeeb hauv ib puag ncig, cov pa luam yeeb nkag mus rau hauv qhov tshawb nrhiav kom tawg lub teeb infrared tawm los ntawm lub raj emitting. Muaj qee qhov kev sib raug zoo ntawm qhov kev siv ntawm lub teeb tawg infrared thiab cov pa luam yeeb concentration. Cov qauv piv txwv tom qab hloov pauv, thiab lub ntsiab tswj nti ua rau hauv lub tswb ntsuas cov kev hloov no kom paub meej tias lub tswb hluav taws tau tshwm sim. Thaum lub tswb hluav taws tau lees paub lawm, lub tswb xa tawm lub tswb hluav taws xob thiab qhov taw qhia hluav taws Lub teeb (liab) teeb thiab lub buzzer tau qhib.
