Yuav ua li cas siv ib tug multimeter los ntsuas qhov ib txwm qhib thiab ib txwm kaw cov ntsiab lus ntawm ib tug photoelectric hloov
Photoelectric hloov (photoelectric sensor) yog lub ntsiab lus ntawm photoelectric sib thooj hloov. Nws siv qhov thaiv lossis kev cuam tshuam ntawm lub teeb pom kev zoo los ntawm cov khoom kuaj pom, thiab lub synchronous circuit gates lub Circuit Court kom pom qhov muaj lossis tsis muaj khoom. Cov khoom tsis txwv rau cov hlau, txhua yam khoom uas tuaj yeem cuam tshuam lub teeb tuaj yeem kuaj pom. Lub photoelectric hloov pauv hloov tam sim no rau hauv lub teeb liab ntawm lub transmitter thiab emits nws, thiab tus receiver pom lub hom phiaj khoom raws li qhov siv los yog muaj lub teeb pom kev zoo. Lub tshuab hluav taws xob hloov hluav taws xob hluav taws xob hluav taws xob hluav taws xob hluav taws xob hauv kev ruaj ntseg feem ntau yog siv hauv kev lag luam los suav cov naj npawb ntawm kev txav ntawm cov neeg kho tshuab caj npab.
Niaj hnub no, ntau lub photoelectric keyboards muaj ob qho tib si qhib thiab ib txwm kaw tawm. Nquag qhib thiab ib txwm kaw yog lub xeev cov zis ntawm lub photoelectric hloov thaum tsis pom qhov khoom. Nws txhais tau hais tias lub photoelectric hloov tau ib txwm qhib cov zis thiab ib txwm kaw cov zis thaum tsis muaj qhov ua.
Paub qhov txawv seb lub photoelectric hloov ib txwm qhib lossis ib txwm kaw:
1. Kev sib cuag ib leeg tuaj yeem paub qhov txawv ntawm cov qauv tsis zoo;
2. Ntau yam khoom muab ob pawg ntawm ib txwm qhib thiab ib txwm kaw kev sib cuag tib lub sijhawm, koj tuaj yeem pom lub logo ntawm qhov hloov pauv;
3. Koj tuaj yeem siv multimeter los ntsuas
Yuav ua li cas siv ib lub multimeter los txiav txim seb qhov sib thooj hloov li cas yog ib txwm kaw los yog ib txwm qhib
Puas yog qhov sib thooj hloov ib txwm kaw lossis ib txwm qhib?
1. Peb-xaim DC24V inductive PNP hom: xim av txuas ntxiv rau 24V, xiav txuas rau 0V.
Cov xim dub txuas nrog cov hlau lead kuaj liab ntawm DC qhov hluav taws xob ntau ntawm cov digital multimeter, thiab cov hlau kuaj dub txuas nrog 0V.
Lub sijhawm no, lub multimeter feem ntau kaw nrog 24V voltage, thiab feem ntau qhib tsis muaj 24V voltage.
2. Peb-xaim DC24V inductive NPN hom: xim av txuas ntxiv rau 24V, xiav txuas rau 0V.
Dub Txuas mus rau qhov kev ntsuam xyuas dub ntawm DC voltage ntau ntawm cov digital multimeter, thiab kev kuaj liab ua rau ntxiv rau 24V.
Lub sijhawm no, lub tshuab multimeter feem ntau kaw thaum muaj 24V voltage, thiab nws nquag qhib thaum tsis muaj 24V voltage.
