Kukhona amaqhinga wokukhetha nokusebenzisa izixhumi

Isixhumi siyingxenye ye-elekthronikhi evamile uma kuqhathaniswa esetshenziswa ekukhiqizeni kwesimanjemanje, futhi kubalulekile ukuthuthukisa inqubo yokukhiqiza .Noma kunjalo, ukusetshenziswa kwezixhumi emikhiqizweni ye-elekthronikhi empilweni yethu kubalulekile.Imikhiqizo ye-elekthronikhi ngaphandle kwesixhumi iyimihlobiso engenamsebenzi.Nakuba kungumzimba oyinhloko futhi isixhumi siyisisetshenziswa kuphela, ukubaluleka kokubili kuyafana , ikakhulukazi ekuqapheliseni ukudluliswa kolwazi lwemishini ye-electromechanical, kubonisa indima ebalulekile yesixhumi.

1. NJENGOBA ukubaluleka kwezixhumi kugqamisa ukubaluleka kwekhwalithi yayo

Indima yayo ebalulekile nayo idinga ukuzuza kukhwalithi ethembekile yemikhiqizo yayo.Ukukhetha imikhiqizo yesixhumi sekhwalithi ephezulu kuyisihluthulelo sokunquma ikhwalithi yokukhiqiza kwethu .Kunalokho, kuyosilethela izinkinga eziningi.

2. Ungakhetha kanjani futhi usebenzise izixhumi?

Kumelwe senze ukukhetha okudingekayo kanye nokuhlola lapho sikhetha izixhumi, ukuze sikwazi ukuthola ngempela imikhiqizo esiyidinga ngempela futhi sidlale indima yesevisi yezixhumi ezimpilweni zethu.

Bheka ikhwalithi nezinga lokukhiqizwa kwayo kwesixhumi esikhethekile, esiphinde sibe umbandela wokuhlolwa komkhiqizo.

① Ubukhulu besakhiwo: Ubukhulu bangaphandle besixhumi bubaluleke kakhulu.Kunemikhawulo ethile yesikhala yokuxhumeka kumkhiqizo, ikakhulukazi isixhumi sebhodi elilodwa, esingakwazi ukuphazamisa ezinye izingxenye.Khetha indlela yokufaka efanele ngokwesikhala sokusetshenziswa nendawo yokufaka (ukufakwa kufaka phakathi ukufakwa kwangaphambili nokufakwa ngemuva, futhi izindlela zokufaka nezindlela zokulungisa zifaka izikulufo, amakholomu, ama-rivets noma ukukhiya okusheshayo kwesixhumi ngokwaso, njll.) kanye nokuma (okuqondile, okugobile). , T uhlobo, nxazonke, isikwele);

② Ukumatanisa kokuphazamiseka: Amanye amasiginali anezidingo ze-impedance, ikakhulukazi amasiginali e-RF, anezidingo eziqinile zokufanisa ezivimbelayo.Uma i-impedance ingafani, izobangela ukubonakaliswa kwesignali, okuzothinta ukudluliswa kwesignali.Asikho isidingo esikhethekile sokuvinjelwa kwesixhumi sokudlulisa isignali evamile

③ Ukuvikela: Ngokuthuthukiswa kwemikhiqizo yokuxhumana, i-EMC inakekelwa kakhulu.Isixhumi esikhethiwe sidinga ukuba negobolondo lensimbi, futhi ikhebula lidinga ukuba nongqimba oluvikelayo.Isendlalelo esivikelayo kufanele sixhunywe negobolondo lensimbi lesixhumi ukuze kuzuzwe ukuvikela.Ngomphumela, indlela yokubumba umjovo ingasetshenziswa futhi ukugoqa ingxenye yepulaki ngesikhumba sethusi, futhi ungqimba oluvikelayo lwekhebula kanye nesikhumba sethusi kuhlanganiswe ndawonye.

④ Ukuvimbela ukufakwa okungalungile: Kunezici ezimbili zokuvimbela ukufakwa okungalungile: ngakolunye uhlangothi, isixhumi ngokwaso, esizungezisa amadigri angu-180, futhi uxhumano olungalungile luholela ekuxhumekeni kwesignali okungalungile.Lungisa ubudlelwano bendawo obuhlobene bezixhumi ukuze wenze umhlangano uhluke;ngakolunye uhlangothi, ukuze kuncishiswe izinhlobo zezinto, amasignali amaningana asebenzisa isixhumi esifanayo.Ngalesi sikhathi, kungenzeka ukufaka ipulaki engu-A kupulaki engu-B.Ngalesi sikhathi, kufanele kuqashelwe , uma isimo esinjalo sizobangela imiphumela emibi (hhayi ama-alamu alula, abhubhisayo), i-interface ye-A ne-B kufanele ikhethwe njengezinhlobo ezahlukene zamasokhethi.

⑤ Ukuthembeka kwezixhumi: izixhumi zisetshenziselwa ukuxhuma amasignali, ngakho-ke izingxenye zokuxhuma kufanele zithembeke (isibonelo, ukuthintana kwendawo kungcono kunokuxhumana kwephoyinti, uhlobo lwephinikhodi lungcono kunohlobo lwentwasahlobo yeqabunga, njll.)

⑥ Indawo yokusebenzisa: Uma isixhumi sisetshenziswa ngaphandle, ngaphakathi, izinga lokushisa eliphezulu, umswakama ophezulu, isifutho sikasawoti, isikhunta, amakhaza nezinye izindawo, kunezidingo ezikhethekile zesixhumi.

⑦ Ukuhlukahluka: Enqubweni yokukhetha izixhumi, kufanele sikhethe izinto ezivamile ngangokunokwenzeka, ikakhulukazi phakathi kwemikhiqizo yochungechunge olufanayo, ukukhethwa kwezixhumi kunokuhlukahluka okunamandla, ukunciphisa izinhlobo zezinto zokwakha, ukwandisa ubuningi nokunciphisa izindleko, futhi ukunciphisa ukunikezwa.ingozi yezimpahla.

⑧ Umsebenzi wokukhiya: Ukuze uvimbele isixhumi ukuthi singawi lapho kukhwelana futhi kuqinisekiswe ukuthintana okuhle, isixhumi sidinga ukuba nomsebenzi wokukhiya.

⑨ Izindleko: Izindleko nazo ziyisici esibalulekile enqubweni yokukhetha.Ngokuncintisana kwemakethe okushubile, ukukhetha okufanele kwezixhumi, izindleko zesixhumi ngokwaso kanye nezindleko zokucubungula kumele kucatshangelwe ngokugcwele.

⑩ Ukutholakala: Ukunikezwa kwezixhumi kuzothintwa izici eziningi.Izixhumi zenhloso ejwayelekile zingcono kunezingezona ezejwayelekile, futhi ezikhiqizwe ekhaya zingcono kunezangaphandle.

⑪ Ukuxhuma imvamisa

⑫ Idizayini yangaphandle yesixhumi ingabonisa kangcono ukusebenza kwayo kwemvelo, ngoba indawo yangaphandle iyinkimbinkimbi kakhulu, ngakho ukuzivumelanisa nalezi zindawo eziyinkimbinkimbi kungaqinisekisa ukusebenza kokusetshenziswa kwayo.