Sensor retro-reflective yokhala ndi polarized reflector imaperekedwa ndi chotchedwa polarization fyuluta. Fyulutayi ikuwonetsetsa kuti kuwala kokhala ndi utali wosiyanasiyana kumawonekera komanso kuti mafunde enawo asawoneke. Pogwiritsa ntchito chizindikirochi, kuwala kokha komwe kumakhala ndi kutalika kwa kuwala komwe kumatulutsa kumawonekera.
Photoelectric sensor ntchito mfundo
Ntchito yaikulu ya Photoelectric Sensor ndi, sensa imatumiza kuwala kuchokera ku mbali ya sensa yotchedwa emitter, ndipo kuwala kwa kuwala kumeneku kumapita ku gawo la sensa yomwe imasonkhanitsa kuwala kotchedwa wolandira. Mitundu yosiyanasiyana ya masensa awa imagwira ntchito yowala m'njira zosiyanasiyana. Mosasamala mtundu wa sensa, imakhala ngati chojambula cha photoelectric switch.
Mitundu ya masensa a photoelectric
Kupyolera mu chipika cha photoelectric sensor
Choyamba, tikambirana za mtundu wa Through-Beam Photoelectric Sensor. Kupyolera mu-Beam masensa ali ndi emitter ndi wolandira mu gawo lawo lapadera.
Kuti sensor ya Through-Beam igwire ntchito, choyimira ndi cholandila chiyenera kulozeredwa wina ndi mnzake ndikuyanjanitsidwa.
Pamene akugwirizana ndipo palibe chomwe chikulepheretsa kuwala, kutulutsa kwa sensa kumakhalapo.
Ngati muyika china chake pakati pa emitter ndi wolandila kuti aletse kuwala, zotsatira za sensa zidzazimitsidwa.
Sensor linanena bungwe chizindikiro
Kutulutsa kwa sensor ndi chizindikiro kuchokera ku sensa kupita ku PLC. Kumbukirani, imagwira ntchito ngati sensor ya photoelectric switch, yomaliza kuzungulira ikayatsidwa. Kutengera sensor, zotulutsa zimatha kukhala chizindikiro chabwino kapena chizindikiro choyipa.
Mtundu wa siginecha yotulutsa sensa yomwe mudzagwiritse ntchito imadalira mtundu wa khadi lolowera la PLC lomwe sensor imalumikizidwa nayo.
Mwachitsanzo,
- Ngati sensor iliPNP, kutanthauza kuti ili ndi chizindikiro chabwino, waya wotuluka wa sensor iyenera kulumikizidwa ndi akumirakhadi lolowera.
- Ngati sensor iliNPNchizindikiro chotuluka ndi choyipa ndipo waya wotuluka adzafunika kulumikizidwa ndi akupezakhadi lolowera.
Chidule
Pobwereza, powerenga nkhaniyi mwaphunzira za mitundu itatu yoyambira ya Photoelectric Sensors:
-Kupyolera mu Beam,
- Retroreflective,
- Wosiyana.
Munaphunzira kuti masensa onse atatu amagwiritsa ntchito kuwala kuti azindikire zinthu ndipo masensa onse atatu ali ndi zizindikiro zomwe zimayambitsa kulowetsa kwa PLC.
Mudaphunziranso zamitundu yosiyanasiyana yomverera komanso zovuta zina za sensa iliyonse.
Nthawi yotumiza: Aug-12-2025
