Unyaka ka-2020 uze neziganeko ezininzi ekungekho mntu wayenokuzibona kwangaphambili. Ubhubhani omtsha wesithsaba uchaphazele ishishini ngalinye kwaye utshintshe ubomi bezigidi zabantu kwihlabathi liphela. Le nto ingaqhelekanga ikhokelele ekunyukeni okukhulu kwemfuno yeemaski, iPPE, kunye nezinye iimveliso ezingalukwanga. Ukukhula okubonakalayo kuye kwenza ukuba kube nzima kubavelisi ukuba bahambisane nemfuno ekhula ngokukhawuleza njengoko befuna ukwandisa imveliso yomatshini kunye nokuphuhlisa izakhono ezandisiweyo okanye ezintsha kwizixhobo ezikhoyo.
Njengoko abavelisi abaninzi bengxamele ukubuyisela izixhobo zabo, ukunqongophala komgangatho we-nonwoveniinkqubo zokulawula uxinzelelokukhokelela kumazinga aphezulu okulahlwa, amagophe okufunda anyukayo kunye neendleko ezingaphezulu, kunye nokulahleka kwemveliso kunye nengeniso. Kuba uninzi lweemaski zonyango, utyando, kunye ne-N95, kunye nezinye izixhobo zonyango ezibalulekileyo kunye ne-PPE, zenziwe ngezinto ezingalukwanga, imfuno yomgangatho ophezulu kunye neemveliso eziphezulu ziye zaba yeyona ndawo iphambili kwiimfuno zenkqubo yoxinzelelo.
Ilaphu elingalukwanga elenziwe ngokudityaniswa kwezinto zendalo kunye nezokwenziwa, ezidityaniswe kunye bubugcisa obahlukeneyo. Amalaphu anyibilikisiweyo angalukwanga, asetyenziswa ikakhulu kwimveliso yemaski kunye nePPPE, enziwe ngamasuntswana eresin anyibilikiswa abe ziintsinga aze avuthelwe kumphezulu ojikelezayo: ngaloo ndlela kudala ilaphu elinenyathelo elinye. Emva kokuba ilaphu lenziwe, kufuneka lidityaniswe kunye. Le nkqubo inokuqhutywa ngenye yeendlela ezine: nge-resin, ukushisa, ukucinezela ngamawaka eenaliti okanye ukudibanisa kunye neejethi zamanzi ezikhawulezayo.
Imigangatho emibini ukuya kwemithathu yelaphu elingalukwanga liyafuneka ukuvelisa imaski. Uluhlu lwangaphakathi luyinduduzo, uluhlu oluphakathi lusetyenziselwa ukuhluza, kwaye uluhlu lwesithathu lusetyenziselwa ukukhusela. Ukongeza kule nto, imaski nganye idinga ibhulorho yeempumlo kunye namacici. Izinto ezintathu ezingezona ezilukiweyo zondliwa kumatshini ozenzekelayo ogoqa ilaphu, ubeka iileya ngaphezulu komnye nomnye, usika ilaphu kubude obufunwayo, kwaye wongeza amacici kunye nebhulorho yeempumlo. Ukukhusela okuphezulu, imaski nganye kufuneka ibe nemigangatho emithathu, kwaye ukusikwa kufuneka kuchaneke. Ukufezekisa oku kuchanekileyo, iWebhu idinga ukugcina uxinzelelo olufanelekileyo kuwo wonke umgca wemveliso.
Xa umzi-mveliso uvelisa izigidi zeemaski kunye ne-PPE ngosuku olunye, ulawulo loxinzelelo lubaluleke kakhulu. Umgangatho kunye nokungaguquguquki ziziphumo ezifunwa sisixhobo sokwenza izinto ngalo lonke ixesha. Inkqubo yolawulo loxinzelelo lwaseMontalvo inokunyusa umgangatho wemveliso yokugqibela yomenzi, yandise imveliso kunye nokungaguquguquki kwemveliso ngelixa isombulula naziphi na iingxaki ezinxulumene nolawulo loxinzelelo abanokudibana nazo.
Kutheni kubalulekile ukulawula uxinzelelo? Ulawulo loxinzelelo yinkqubo yokugcina ubungakanani obumiselweyo okanye obubekiweyo boxinzelelo okanye uxinzelelo kwinto enikiweyo phakathi kwamanqaku amabini ngelixa ugcina ukufana kunye nokuhambelana ngaphandle kokulahlekelwa kumgangatho wezinto eziphathekayo okanye iipropati ezifunwayo. Ukongeza, xa iinethiwekhi ezimbini okanye ngaphezulu zihlanganiswa, inethiwekhi nganye ingaba neempawu ezahlukeneyo kunye neemfuno zoxinzelelo. Ukuqinisekisa inkqubo yokulatyuza ekumgangatho ophezulu eneziphene ezincinci ukuya kungabikho, iwebhu nganye kufuneka ibe nenkqubo yayo yokulawula uxinzelelo ukuze kugcinwe ubuninzi bemveliso yomgangatho ophezulu wemveliso.
Kulawulo oluchanekileyo loxinzelelo, inkqubo ye-loop evaliweyo okanye evulekileyo ibalulekile. Iisistim ezivaliweyo zilinganisa, zibeke iliso kwaye zilawule inkqubo ngengxelo ukuthelekisa uxinezeleko olululo kunye noxinzelelo olulindelekileyo. Ngokwenza njalo, oku kunciphisa kakhulu iimpazamo kwaye kubangele umphumo ofunekayo okanye impendulo. Kukho izinto ezintathu eziphambili kwinkqubo ye-loop evaliweyo yokulawula uxinzelelo: isixhobo sokulinganisa uxinzelelo, umlawuli kunye nesixhobo se-torque (i-brake, i-clutch okanye i-drive)
Sinokubonelela ngoluhlu olubanzi lwabalawuli bengcinezelo ukusuka kubalawuli be-PLC ukuya kwiiyunithi zolawulo ezizinikeleyo. Umlawuli ufumana impendulo yomlinganiselo wezinto ezithe ngqo kwiseli yomthwalo okanye ingalo yomdanisi. Xa utshintsho lutshintsha, luvelisa isignali yombane apho umlawuli awutolika ngokumalunga noxinzelelo olubekiwe. Umlawuli ke ulungelelanisa i-torque yesixhobo sokukhupha i-torque (i-tension brake, i-clutch okanye i-actuator) ukugcina indawo efunekayo yokumisela. Ukongezelela, njengoko ubunzima obuguquguqukayo buguquka, i-torque efunekayo kufuneka ilungiswe kwaye ilawulwe ngumlawuli. Oku kuqinisekisa ukuba ukuxhatshazwa kuyahambelana, kuyahambelana kwaye kuchanekile kuyo yonke inkqubo. Senza iintlobo ngeentlobo zeenkqubo zeeseli zomthwalo okhokelayo kwishishini ezinobumbeko lokunyuswa okuphindaphindiweyo kunye nemilinganiselo yomthwalo emininzi enovakalelo ngokwaneleyo ukubona notshintsho oluncinci kuxinzelelo, ukunciphisa inkunkuma kunye nokunyusa isixa somgangatho ophezulu wemveliso yokugqibela. Iseli yomthwalo ilinganisa i-micro-deflection force eyenziwa yimpahla njengoko ihamba kwi-idler rolls ebangelwa ukuqina koxinzelelo okanye ukukhulula njengoko izinto zidlula kwinkqubo. Lo mlinganiso wenziwa ngendlela yomqondiso wombane (ngokuqhelekileyo i-millivolts) ethunyelwa kumlawuli ukuze kulungiswe i-torque ukuze kugcinwe uxinzelelo olubekiwe.
Ixesha lokuposa: Dec-22-2023
