Capacitive proximity switches inogona kushandiswa kuonana kana kusaonana kuona chero chinhu. NeLANBAO's capacitive proximity sensor, vashandisi vanogona kugadzirisa kunzwisiswa uye kunyange kupinda mukati asiri-metal canisters kana midziyo kuti vaone zvinwiwa zvemukati kana zvimedu.
01 Technical Overview
A capacitor ine mahwendefa maviri inogadzira munda wemagetsi pakati pemahwendefa kana ichinge yabatidzwa. Chero zvinhu zvinopinda mumunda uyu zvinoshandura capacitance pakati pemahwendefa.
A capacitor inogonawo kunge ine ndiro. Muchiitiko ichi, yechipiri "plate" ndiyo tambo yepasi.
Yese capacitive sensors ine zvakafanana zvakakosha zvikamu.
1.Enclosures - Maumbirwo akasiyana-siyana, hukuru uye zvinhu zvekugadzirisa
2.Basic sensor element - inosiyana zvichienderana nekombiki yakashandiswa
3.Electronic circuit - inoongorora zvinhu zvakaonekwa nema sensors
4.Electrical connection - Inopa simba uye zviratidzo zvinobuda
Panyaya yecapacitive sensors, iyo base sensing element ibhodhi imwe chete capacitor uye imwe plate yekubatanidza yakadzikwa. Kana iyo chinangwa ichienda kunzvimbo yekuona sensor, iyo capacitance kukosha inoshanduka uye inobuda sensor inochinja.
1.capacitor
2.kubatana
3.Induction pamusoro
02 Zvinhu zvinokanganisa kureba kwekunzwa kwe sensor
Iyo induced chinhambwe chinoreva chinhambwe chemuviri chinoita kuti shanduko inobuda ishanduke kana chinangwa chasvika kune iyo sensor induced surface muaxial direction.
Peji rezvigadzirwa zvedu rinoratidza madaro matatu akasiyana:
Sensing Rangeinoreva nhambwe yezita inotsanangurwa muhurongwa hwekusimudzira, iyo inovakirwa pane chinongedzo chehukuru hwakajairwa uye zvinhu.
The Real Sensing Rangeinotora chikamu kutsauka pane tembiricha yekamuri. Nyaya yakaipisisa ndeye 90% yezita rekunzwa renji.
The Chaiyo Operating Distanceinotora muakaundi switch point drift inokonzerwa nekunyorova, kukwira kwetembiricha uye zvimwe zvinhu, uye yakaipisisa ndeye 90% yeiyo chaiyo induced chinhambwe. Kana iyo inductive chinhambwe chakakosha, iyi ndiyo chinhambwe chekushandisa.
Mukuita, chinhu chacho hachiwanzo chiyero chekukura uye chimiro. Kurudziro yehukuru hwechinangwa inoratidzwa pazasi:
Kunyange zvishoma kudarika kusiyana kwehukuru ndiko kusiyana kwechimiro. Mufananidzo uri pasi apa unoratidza kushanda kwechimiro chechinangwa.
Izvo chaizvo zvakaoma kupa chimiro-chakavakirwa kugadzirisa chinhu, saka kuyedzwa kunodiwa mumashandisirwo uko inductive chinhambwe chakakosha.
Pakupedzisira, chinhu chikuru chinokanganisa chinhambwe chakakonzerwa ndiyo dielectric yenguva dzose yechinangwa. Kune capacitive level sensors, iyo yakakwirira iyo dielectric inogara, zviri nyore kuti zvinhu zvionekwe. Sekutonga kwechigunwe, kana iyo dielectric inogara yakakura kupfuura 2, zvinhu zvacho zvinofanirwa kuonekwa. Izvi zvinotevera dielectric constants ezvimwe zvinhu zvakajairika zvekutarisa chete.
03 Capacitive sensor yekuona nhanho
Kuti ubudirire kushandisa capacitive sensors yekuona nhanho, ita shuwa kuti:
Madziro emudziyo haasi-simbi
Mudhuri mukobvu uri pasi pe¼" -½"
Hapana simbi pedyo ne sensor
Iyo induction surface inoiswa zvakananga pamadziro emudziyo
Equipotential pasi pe sensor uye mudziyo
Nguva yekutumira: Feb-14-2023