Uninzi lweukuhambisazifakiwe kwisiza, kwaye imiqondiso yabo yokuphuma ithunyelwe kwigumbi lolawulo, kwaye ubonelelo lwalo luvela kwigumbi lolawulo. Zihlala zimbini iindlela zothumelo lomqondiso kunye nokubonelela ngamandla kwi-Transmitter:
(1) Inkqubo yee-wire-wire
Ukuhanjiswa kwamandla kunye nomqondiso wokukhupha kuwo udluliselwa ziingcingo ezimbini ngokwahlukeneyo, kwaye indlela ye-wiring iboniswe kumzobo 2.3. Iivenkile ezinjalo zibizwa ngokuba zitshintshiselane ezine. I-STRITTET ye-DDZ-ⅱ isixhobo se-DDZ-ⅱ ithathe inxaxheba kule ndlela yokudinwa Uncedo lwamandla lunokuba yi-AC (220v) okanye i-DC (24v), kwaye uphawu lwemveliso lungayi-zero (0-10ma) okanye iPhila (4-20ma).
Umzobo 2.3 Usulelo lwe-wire-wire
(1) Inkqubo yee-wire ezimbini
Kwimisitho yocingo emibini, zimbini kuphela iingcingo ezinxulumene nokudlulisela, kwaye ezi ntambo zimbini zidlulisela umbane kunye nomqondiso wemveliso ngaxeshanye, njengoko kubonisiwe kumzobo 2.4. Ingabonwa ukuba unikezo lwaMandla, ukuhambisa kunye nokugcina umthwalo uqhagamshelwe kwingcelele.Isosulelo ezimbini-mbini-wire wire ilingana nokuya ngukumkani olawulwa yiparameter elinganiswa. Xa i-parameter yotshintsho, ukuxhathisa okulinganayo kotshintsho lotshintsho ngokufanelekileyo, ke ukugela kwangoku ngomthwalo kuyatshintsha.
Umzobo 2.4 Ukuhanjiswa kwee-wire ezimbini
I-Transmina yocingo ezimbini kufuneka ihlangabezane neemeko zilandelayo:
Ukusebenza okuqhelekileyo kwe-Transmitter kufuneka ilingane okanye ngaphantsi kwexabiso elincinci lomqondiso
,Yiyo i
Kuba umgca wombane kunye nomgca womqondiso uqhelekile, amandla anikezwe kwi-Storitter nguMbane unikezwe ngumqondiso wangoku. Xa iziphumo zangoku ze-Transmitter zisemdeni ongezantsi, kufuneka ziqinisekiswe ukuba izixhobo ze-semiconductor ngaphakathi zisenokusebenza ngokwesiqhelo.
Ke ngoko, ixabiso elingaphantsi lomqondiso lophawu lwangoku alunakuba phantsi kakhulu. Kungenxa yokuba kumda ongezantsi wemveliso yangoku yemveliso edlulayo, isixhobo se-semicondcuctor kufuneka ibe nendawo yokusebenza eqhelekileyo, kwaye umbane wonikezelo lwezinto ezisebenzayo kufuneka unikezwe ngumbane, ke umqondiso wangoku kufuneka ube nendawo yero ephilayo. Umqondiso wamanye amazwe aBalaseleyo kwi-4 ukuya kwi-9Madc, edale imiqathango yokuveliswa kweendawo ezimbini ezinocingo.
Imeko ye-voltage yendawo yokudlulisela emsebenzini ngesiqhelo
Kwifomula:
Ngaba ivolomu yemveliso yesahlulo;
Ixabiso elincinci le-voltage ye-voltage;
ngumda ophezulu wemveliso yangoku, ihlala i-20fu;
yeyona xabiso liphezulu lokuchasana nomthwalo kwi-Transmitter;
Ixabiso lokuchasana ne-wire yokudibanisa.
Intsalela emibini-cingo yocingo kufuneka ixhaswe ngumsebenzi omnye we-DC. Ubonelelo olubizwa ngokuba luNcedo lwamaZando lubhekisa kunikezelo lwamandla kunye ne-zero enokubakho njengendawo yokuqala, endaweni yokuhambisa amandla kwaye okubi ukuya kwi-Iro. Imveliso yemveliso yosulelo ilingana nomahluko phakathi kwe-voltage yoncedo lwamandla kunye ne-voltage yehla kwimveliso yangoku kwi-RL kunye nokuchasana ne-wire yodluliselo. Ukuze kuqinisekiswe ukusebenza okuqhelekileyo kwesahlulo, ixabiso le-voltage yemveliso linokutshintsha kuphela ngaphakathi kuluhlu olulinganiselweyo. Ukuba ukuxhathisa komthwalo kunyuka, i-voltage ye-voltage kufuneka inyuswe; Kungenjalo, i-voltage inokuncipha; Ukuba i-voltsion yonikezo Ngaphandle koko, ukunganyangeki komthwalo kunganinzi.
Amandla asezantsi asebenzayo kwi-transmitter ukusebenza ngesiqhelo
Kuba amandla edluliselo lwe-wire-wuma ezimbini incinci kakhulu, kwaye i-voltage yomthwalo itshintsha kakhulu kunye nemveliso yangoku kunye nokungavisisani kwangoku, ivolthi esebenzayo yecandelo ngalinye lolu tshintsho. Ke ngoko, xa usenza ucimo-ucingo olunamacala amabini, kuyacelwa ukuba usebenzise i-Amplimier eHlanganisiweyo eDat-Amplimier kwaye usete i-voltage-ukuzinza kunye nokuzinzisa okungoku kwaye kunxunguphalo ngoku.
Isalathisi esineentambo ezimbini sineengenelo ezininzi, ezinokunciphisa kakhulu iindleko zokufakelwa kwesixhobo, kwaye zilungele ukhuseleko kunye nokhuseleko lokuqhubela. Ke ngoko, amazwe amaninzi emhlabeni okwangoku asebenzisa i-wire yee-wire ezimbini.
Ixesha leposi: NgoDE-16 ukuya ku-2002