Phantse bonke abalimi ngoku batshiza izityalo ngemveliso yokukhusela izityalo, ngoko ke ukusetyenziswa ngokufanelekileyo kwesitshizi kunye nokukhetha umbhobho ochanekileyo kuyafuneka ukuze kuqinisekiswe ukugqunywa okusebenzayo kunye nenani elincinci lemichiza.Oku akugcini nje ukunciphisa impembelelo yokusingqongileyo, kodwa kugcina iindleko.
Xa kuziwa ekukhetheni umlomo ochanekileyo kwisitshizi sakho sentsimi, eyona ngxaki inkulu kukuba zininzi iindlela onokukhetha kuzo.Kukho ukugqithiswa kwemilomo kwaye kuyinyani ukuba zininzi izinto onokukhetha kuzo, ke ukufumana umlomo ochanekileyo kunokuba ngumngeni.
Enyanisweni, iimveliso ze-nozzle kwimarike zisemgangathweni ophezulu kakhulu.Kwabathandathu okanye abakhulu abavelisi, bonke benza iimveliso ezilungileyo ezinomsebenzi ofanayo.Ukuba umsebenzisi ujonge imveliso yomlomo ongcono ngokupheleleyo, okanye unohlobo oluthile lomsebenzi womlingo, akunakubakho umlomo onjalo kwaphela.Okanye, ukuba uyeva okanye ubona imveliso yomlomo ebanga ukuba inamandla omlingo, ungayikhupha ngokupheleleyo kuluhlu olufutshane.
Ngokutsho kweengcali ezininzi zokukhuselwa kwezityalo kunye nezitshabalalisi, kukho iingongoma ezimbini eziphambili ekufuneka ziqwalaselwe xa ukhetha umbhobho: ithontsi elungileyo kunye nombhobho ochanekileyo.
Okokuqala, fumana umbhobho ovelisa ubungakanani obufanelekileyo bethontsi kwimveliso esetyenziswayo.Ngokubanzi, isitshizi esirhabaxa sisebenza kakuhle phantse kuzo zonke iimveliso zokukhusela izityalo kwaye sinciphisa ukukhukuliseka.Ekuphela kwento ekufuneka yenziwe ngumsebenzisi kukufunda iphepha lenkcazo yesitshizi somenzi womlomo ukuze aqonde umgangatho wokutshiza.Kwabaninzi abavelisi abakhulu bee-nozzle, iinkcukacha zabo zemveliso zinokufumaneka kwi-intanethi.
Isinyathelo sesibini kukukhetha umbhobho wobungakanani obufanelekileyo.Ngomdla okhulayo kwiinkqubo ze-PWM, ubukhulu bombhobho buba bubaluleke ngakumbi.Ukumodareyitha kobubanzi be-Pulse yindlela entsha yokulinganisa ukuhamba kolwelo olusuka kumbhobho.
Inkqubo ye-PWM isebenzisa umbhobho wokutshiza wesintu onebhoom enye kunye nomlomo omnye kwindawo nganye.Ukuhamba kolwelo kumlomo ngamnye kulawulwa ngokuvala imilomo ngokufutshane nangokufutshane ngeevalvu zesolenoid.Isiqhelo se-pulse frequency yi-10 Hz, oko kukuthi, i-valve ye-solenoid ivala umlomo amaxesha angama-10 ngesekhondi, kwaye ubude bexesha elithi umlomo "ukwindawo" libizwa ngokuba ngumjikelo womsebenzi okanye ububanzi be-pulse.
Ukuba umjikelo womsebenzi umiselwe kwi-100%, oko kuthetha ukuba umlomo uvuleke ngokupheleleyo;umjikelo womsebenzi we-20% uthetha ukuba ivalve ye-solenoid ivuleke kuphela i-20% yexesha, okukhokelela ekuhambeni malunga ne-20% yomthamo womlomo.Ukukwazi ukulawula umjikelo womsebenzi kubizwa ngokuba yi-pulse wide modulation.Phantse zonke izitshizi zasemasimini kwiifektri ezinkulu namhlanje zizixokelelwano ze-PWM, kwaye malunga nesinye kwisithathu ukuya kwisiqingatha sabo basebenza kumasimi asefama ziinkqubo zokutshiza ze-PWM.
Oku kunokubonakala kuntsonkothile, kwaye xa umsebenzisi ethandabuza, kungcono udibane nomthengisi wemibhobho yasekuhlaleni okanye ingcali yokhuseleko lwezityalo ukuze uqinisekise kusetyenziswa umlomo ochanekileyo, okonga ixesha kunye nemali.
