Ifanele i-Cummins L10 N14 M11 inzwa yokucindezela uwoyela 4921485

Inzwa yesikhundla esinamandla

I-1.Capacitive position sensor iyinzwa yendawo engathinteki, ngokuvamile equkethe izingxenye ezintathu: indawo yokuthola, ungqimba oluvikelayo kanye negobolondo. Bangakwazi ukukala indawo okuyiyonayona yethagethi, kodwa into kuphela. Uma into elinganisiwe ingaqhubeki, kusewusizo ukukala ukushuba noma ukuminyana kwayo.

2.Uma ukala into eqhubayo, isignali yokuphumayo ayihlangene nempahla yento, ngoba inzwa ye-capacitive displacement, wonke ama-conductor ayi-electrode efanayo. Lolu hlobo lwenzwa lusetshenziswa kakhulu ku-disk drive, ubuchwepheshe be-semiconductor kanye nokulinganisa okuphezulu kwezimboni, kodwa kudinga ukunemba okuphezulu kakhulu nokuphendula imvamisa. Uma isetshenziselwa ukukala ama-non-conductors, izinzwa ze-capacitive position zivame ukusetshenziselwa ukuthola amalebula, ama-coatings kanye nokulinganisa ukujiya kwephepha noma ifilimu.

I-3.Capacitive position sensor ekuqaleni yayisetshenziselwa ukukala ibanga lokugudluzwa komugqa, kusukela kumamilimitha ambalwa kuya kuma-nanometer amaningana, futhi ukulinganisa kwaqedwa ngokusebenzisa izici zikagesi ze-conductivity. Ikhono lento yokugcina icala libizwa nge-capacitance. Idivayisi evamile ye-capacitor yokugcina ukushaja i-plate capacitor. I-capacitance ye-plate capacitor ilingana ngokuqondile nendawo ye-electrode kanye ne-dielectric constant, futhi ihambisana ngokuphambene nebanga phakathi kwama-electrode. Ngakho-ke, lapho ibanga phakathi kwama-electrode lishintsha, amandla nawo ashintsha. Ngamafuphi, inzwa ye-capacitive position isebenzisa lesi sici ukuze iqedele ukuthola indawo.

I-4.Inzwa evamile ye-capacitive position ihlanganisa ama-electrode amabili ensimbi, anomoya njenge-dielectric. I-electrode eyodwa yenzwa iyipuleti lensimbi, kanti enye i-electrode ye-capacitor yakhiwe into eqhutshwayo okufanele ibonwe. Lapho i-voltage isetshenziswa phakathi kwamapuleti e-conductor, inkambu kagesi iyasungulwa phakathi kwamapuleti, futhi amapuleti amabili agcina amashaji amahle kanye namashaji angalungile ngokulandelana. I-capacitive position sensor ngokuvamile isebenzisa i-AC voltage, eyenza ukushaja kwepuleti kushintshe i-polarity njalo, ngakho ukuguqulwa kwendawo okuhlosiwe kungatholwa ngokulinganisa amandla phakathi kwamapuleti amabili.

I-5.I-capacitance inqunywa ibanga phakathi kwamapuleti, i-dielectric constant ye-dielectric kanye nebanga phakathi kwamapuleti. Ezinzwa eziningi, indawo kanye ne-dielectric constant ye-electrode plate ngeke ishintshe, ibanga kuphela elizothinta amandla phakathi kwe-electrode nento ehlosiwe. Ngakho-ke, ukushintshwa kwamandla kungabonisa indawo okuhlosiwe. Ngokulinganisa, isignali ye-voltage ephumayo yenzwa inobudlelwano bomugqa nebanga phakathi kwebhodi lokuthola nokuhlosiwe. Lokhu ukuzwela kwenzwa. Ibonisa isilinganiso sokushintshwa kwe-voltage ephumayo ekushintsheni kwendawo. Iyunithi ivamise ukuba ngu-1V/micron, okungukuthi, i-voltage ephumayo ishintsha i-1V njalo kuma-microns ayi-100.

6.Uma i-voltage isetshenziswa endaweni yokuthola, inkambu kagesi ehlakazekile izokhiqizwa entweni etholiwe. Ukuze kuncishiswe ukuphazamiseka, isendlalelo sokuzivikela siyengezwa. Isebenzisa amandla afanayo e-electromotive kuzo zombili iziphetho zendawo yokuthola ukuvimbela inkambu kagesi esikhaleni sokuthola ukuthi ingavuzi. Ama-conductor angaphandle kwezinye izindawo zokutholwa azokwakha inkambu kagesi enesendlalelo esivikelayo futhi ngeke aphazamise inkambu kagesi phakathi kokuhlosiwe nendawo etholwayo. Ngenxa yongqimba oluvikelayo, inkambu kagesi endaweni yokuthola i-conical. Indawo ehlongozwayo yenkambu kagesi ekhishwa i-electrode yokutholwa inkulu ngo-30% kunendawo etholwayo. Ngakho-ke, indawo yobubanzi bento etholiwe kufanele okungenani ibe nkulu ngo-30% kunendawo etholwayo yenzwa.