UThutho lwe-Analog-Umqolo woNxibelelwano lwezoShishino
Ukuhanjiswa kwe-analog yindlela eqhelekileyo yokuhambisa ulwazi. Ngokungafaniyo nomlingani wayo wedijithali, isebenzisa umqondiso oqhubekayo ukumela ulwazi. Kwiinkqubo zolawulo lwemizi-mveliso, oku kudla ngokubaluleka ngenxa yesidingo sokuphendula ngexesha lokwenyani kunye nokutshintshwa kwedatha egudileyo.
Ukuvela nokusetyenziswa kobuchwephesha bolawulo lwemizi-mveliso kwazisa uguqulo lwesithathu lwemizi-mveliso, olungakhange luphucule kakhulu ukusebenza kakuhle nje kuphela kodwa lusindise umsebenzi omninzi nezinye iindleko. Ulawulo lwemizi-mveliso lubhekiselele kulawulo oluzenzekelayo lwemizi-mveliso, olubhekiselele kusetyenziso lwetekhnoloji yekhompyuter, itekhnoloji ye-microelectronics, kunye neendlela zombane ukwenza inkqubo yokuvelisa kunye nokuveliswa komzi-mveliso isebenze ngakumbi, isebenze, ichaneke, ilawuleke kwaye ibonakale. Ezona ndawo zingundoqo zolawulo lwemizi-mveliso zikwizikhululo zamandla amakhulu, i-aerospace, ulwakhiwo lwamadama, ubushushu bokulawula ubushushu kwimizi-mveliso, kunye neeseramikhi. Ineenzuzo ezingenakubuyiselwa. Okufana noku: Ukubekwa kweliso kwexesha lokwenyani kweegridi zamandla kufuneka kuqokelelwe inani elikhulu lamaxabiso edatha kwaye kuqhutywe inkqubo ebanzi. Ukungenelela kobuchwephesha bolawulo lwemizi-mveliso kuququzelela ukusetyenzwa kolwazi oluninzi.
I-Anatomy yoThutho lwe-Analog
Usasazo lwe-analog lubandakanya ukusetyenziswa koluhlu oluqhubekayo lwamaxabiso. Iguqula ubungakanani bomzimba, njengobushushu okanye uxinzelelo, ibe yivoltheji ehambelanayo okanye imiqondiso yangoku. Oku kuqhubela phambili kunika ukuchaneka, okwenza ukuhanjiswa kwe-analog kuhambe kumashishini apho ukuchaneka kubaluleke kakhulu.
Ubungakanani be-analog bubhekisa kubungakanani obutshintsha ngokuqhubekayo kuluhlu oluthile; oko kukuthi, ingathatha naliphi na ixabiso (ngaphakathi koluhlu lwexabiso) ngaphakathi koluhlu oluthile (inkcazo yommandla wolwazi). ingathatha amaxabiso amabini kuphela.
Kutheni ukhetha ukuhanjiswa kweAnalog?
Ukuhanjiswa kwe-analog kunokuba yindlela enenzuzo yokuhambisa ulwazi ngezizathu ezininzi:
1. Imo yendalo:Uninzi lweziganeko zendalo ziyi-analog, ngoko ke azifuni ukuguqulwa kwedijithali phambi kokudluliselwa. Ngokomzekelo, isandi kunye neempawu ezibonakalayo ziyi-analog ngokwemvelo.
2. Ubulula beHardware:Iinkqubo zothumelo lwe-analog, ezifana neenkqubo zerediyo ze-FM/AM, zihlala zilula kwaye zingabizi kakhulu kuneenkqubo zedijithali. Oku kunenzuzo xa useka iinkqubo apho iindleko kunye nokulula zizinto eziphambili.
3. Ukubambezeleka okusezantsi:Iinkqubo ze-analog zihlala zibonelela nge-latency encinci kuneyedijithali, njengoko ayifuni ixesha lokufaka ikhowudi kunye nokucacisa uphawu.
4. Iimpazamo zokugudisa:Iinkqubo ze-analog zinokugudisa ezinye iintlobo zeempazamo ngendlela inkqubo yedijithali engakwazi ngayo. Ngokomzekelo, kwinkqubo yedijithali, impazamo encinci inokubangela ingxaki enkulu, kodwa kwinkqubo ye-analog, amanani amancinci engxolo abangela kuphela amanani amancinci okuphazamisa.
5. Ukuhanjiswa kwe-Analog kwimigama eMikhulu:Ezinye iintlobo zeempawu ze-analog, ezinjengamaza erediyo, zinokuhamba imigama emide kwaye azithinteleki lula njengemiqondiso yedijithali.
Nangona kunjalo, kukwabalulekile ukukhankanya iingxaki zosasazo lwe-analog. Umzekelo, basengozini yokuphulukana nobulunga ngenxa yengxolo, ukuthotywa, kunye nokuphazamiseka, xa kuthelekiswa neempawu zedijithali. Kananjalo abanazo iimpawu eziphambili zeenkqubo zedijithali, ezinjengokubona iimpazamo kunye nesakhono sokulungisa.
Isigqibo phakathi kwe-analog kunye nokuhanjiswa kwedijithali ekugqibeleni kuxhomekeke kwiimfuno ezithile zesicelo.
Ubushushu, ukufuma, uxinzelelo, isantya sokuhamba, njl.njl. ezilinganiswe yinzwa zizonke izibonakaliso ze-analog, ngelixa ngokuqhelekileyo evulekileyo kwaye ngokuqhelekileyo ivaliwe yimiqondiso yedijithali (ekwabizwa ngokuba yi-digital) .Iimpawu zokudlulisa ngokuqhelekileyo zizibonakaliso ze-analog, eziyi-4-20mA yangoku. okanye 0-5V, 0-10V amandla ombane. Abasebenzi bokwakha bakhetha ukusebenzisa i-4-20mA ukuhambisa iimpawu ze-analog kwiimeko zolawulo lwamashishini, kwaye banqabile ukusebenzisa i-0-5V kunye ne-0-10V.
Siyintoni isizathu ?
Okokuqala, uphazamiseko jikelele lwe-electromagnetic kwiifektri okanye kwiindawo zokwakha kunzulu kakhulu, kwaye iisignali zombane zisesichengeni sokuphazamiseka kuneempawu zangoku. Ngaphezu koko, umgama wothumelo wesignali yangoku ukude kunomgama wokuhanjiswa kwesignali yombane kwaye awuyi kubangela ukuthotywa kwesignali.
Okwesibini, I-signal current yezixhobo eziqhelekileyo yi-4-20mA (4-20mA ithetha ukuba ubuncinci obukhoyo ngu-4mA, ubuninzi bangoku ngu-20mA) .I-4mA ephantsi kakhulu isetyenzisiweyo kuba inokubona indawo yokuqhawula. Ubuninzi be-20mA busetyenziselwa ukuhlangabezana neemfuno zobungqina bokuqhuma, kuba i-spark yamandla enokuthi ibangelwa kukucima kwe-20mA yangoku isignali akwanelanga ukutshisa indawo yokuqhuma kwegesi evuthayo. Ukuba ingaphezulu kwe-20mA, kukho ingozi yokudubula. Njengaxa inzwa yegesi ibona iigesi ezinokutsha neziqhumayo ezifana necarbon monoxide kunye nehydrogen, ingqwalasela kufuneka ihlawulwe ekukhuselweni koqhushumbo.
Ekugqibeleni, Xa uhambisa umqondiso, cinga ukuba kukho ukuchasana kwintambo. Ukuba ukuhanjiswa kwe-voltage kusetyenzisiweyo, ukuhla kwe-voltage ethile kuya kuveliswa kwintambo, kwaye isignali ekupheleni kokufumana iya kuvelisa impazamo ethile, eya kukhokelela ekulinganisweni okungachanekanga. Ngoko ke, kwiinkqubo zolawulo lwamashishini, ukuhanjiswa kwesignali yangoku ngokuqhelekileyo kusetyenziswa xa umgama omde ungaphantsi kweemitha ezili-100, kwaye ukuhanjiswa kwesignali ye-0-5V kungasetyenziselwa ukuhanjiswa komgama omfutshane.
Kwinkqubo yolawulo lwemizi-mveliso, i-transmitter iyimfuneko, kwaye indlela yokuhambisa i-analog yokuhambisa ibaluleke kakhulu. Ngokwendawo oyisebenzisayo, uluhlu lokulinganisa kunye nezinye izinto, khetha imowudi ye-analog ehambelanayo yokuhambisa ukuphumeza umlinganiselo ochanekileyo kunye nokunceda umsebenzi wakho. Sinento egqwesileyo yentsimbi/intsimbi engenasici. iqondo lobushushu kunye nokufuma isivamvo / probe, alarm yegesi ukuqhuma-ubungqina bezindlu imveliso kunye nenkonzo. Kukho iisayizi ezininzi ozikhethayo, inkonzo yokucubungula elungiselelweyo iyafumaneka.
Ixesha lokuposa: Dec-12-2020
