Okokuqala, iqhinga elincane lokuhlola izingxenye ze-SMT ze-multimeter
Ezinye izakhi ze-SMD zincane kakhulu futhi akulula ukuzihlola futhi zilungiswe ngamapeni ajwayelekile e-multimeter. Enye iwukuthi kulula ukubangela isifunda esifushane, kanti enye iwukuthi ayihambisani nebhodi lesifunda eliboshwe nge-insulating coating ukuze lithinte ingxenye yensimbi yephini lengxenye. Nansi indlela elula yokutshela wonke umuntu, izoletha lula kakhulu ekutholeni.
Thatha izinaliti zokuthunga ezimbili ezincane kunazo zonke, (i-Deep Industrial Control Maintenance Technology Column), zivale epeni le-multimeter, bese uthatha ucingo lwethusi oluncane olusuka ekhebula elinemicu eminingi, bese ubopha inaliti nenaliti kuNdawonye, sebenzisa i-solder solder ngokuqinile. Ngale ndlela, abukho ubungozi bokujikeleza okufushane lapho ukala lezo zingxenye ze-SMT ngepeni lokuhlola elinetiphu yenaliti elincane, futhi ithiphu yenaliti ingabhoboza i-insulating coating futhi ishaye izingxenye ezibalulekile ngokuqondile, ngaphandle kokukhathazeka ukukhuhla ifilimu. .
Okwesibili, indlela yokugcinwa kwebhodi lesifunda lesiphakeli samandla kagesi wesifunda esifushane
Ekulungisweni kwebhodi lesifunda, uma uhlangabezana ne-short-circuit of the public power supply, iphutha livame ukuba likhulu, ngoba amadivaysi amaningi ahlanganyela amandla afanayo, futhi zonke izisetshenziswa ezisebenzisa lokhu kunikezwa kwamandla zisolwa ngokusebenza isikhathi esifushane. Uma zingekho izingxenye eziningi ebhodini, sebenzisa "i-hoe the earth" Emva kwakho konke, ungathola iphuzu le-short-circuit. Uma kunezingxenye eziningi kakhulu, kuzoncika enhlanhleni "ukugeba umhlaba" ukuze ufinyelele isimo. Indlela esebenza ngempumelelo iyanconywa lapha. Ukusebenzisa le ndlela kuzothola umphumela ophindwe kabili ngesigamu somzamo futhi ngokuvamile uthole iphuzu lephutha ngokushesha.
Kuyadingeka ukuthi ube nogesi one-voltage eguquguqukayo kanye namanje, i-voltage 0-30V, i-0-3A yamanje, lokhu kunikezwa kwamandla akubizi, cishe ama-yuan angama-300. Lungisa i-voltage yesekethe evulekile ezingeni le-voltage yokuphakelwa kwamandla edivayisi, qala ngokulungisa ekhona manje ibe encane, engeza le voltheji endaweni kagesi yokuphakelwa kwamandla esekethe, njengamatheminali angu-5V kanye no-0V we-chip yochungechunge lwe-74, kuye ngokuthi degree of short circuit, kancane kancane ukwandisa yamanje. Thinta idivayisi ngesandla. Uma uthinta idivayisi eshisa kakhulu, lokhu kuvame ukuba ingxenye eyonakele, engasuswa ukuze kulinganiswe futhi kuqinisekiswe. Yiqiniso, i-voltage akufanele idlule i-voltage yokusebenza yedivayisi ngesikhathi sokusebenza, futhi uxhumano alukwazi ukuhlehliswa, ngaphandle kwalokho luzoshisa amanye amadivaysi amahle.
Okwesithathu. Irabha elincane lingaxazulula izinkinga ezinkulu
Amabhodi amaningi asetshenziswa ekulawuleni izimboni, futhi amabhodi amaningi asebenzisa iminwe yegolide ukuze afake ezikhaleni. Ngenxa yesimo sendawo yezimboni enokhahlo, indawo enothuli, enomswakama, negesi egqwalayo, ibhodi lingase libe nokungaphumeleli kahle kokuxhumana. Abangane kungenzeka ukuthi baxazulule inkinga ngokufaka ibhodi esikhundleni, kodwa izindleko zokuthenga ibhodi zikhulu kakhulu, ikakhulukazi amabhodi emishini ethile engenisiwe. Eqinisweni, ungasebenzisa irabha ukuze uhlikihle umunwe wegolide izikhathi ezimbalwa, uhlanze ukungcola emunwe wegolide, bese uzama umshini futhi. Inkinga ingase ixazululwe! Indlela ilula futhi iyasebenza.
Okwesibili. Ukuhlaziywa kwamaphutha kagesi ngezikhathi ezinhle nezikhathi ezimbi
Ngokuya ngamathuba, amaphutha ahlukahlukene kagesi anezikhathi ezinhle nezimbi afaka phakathi izimo ezilandelayo:
1. Ukungaxhumani kahle
Ukuxhumana okungalungile phakathi kwebhodi kanye ne-slot, lapho ikhebula liphukile ngaphakathi, ngeke lisebenze, ipulaki kanye ne-wiring terminal ayixhumani, futhi izingxenye zithengiswa.
2. Isignali iyaphazamiseka
Kumasekhethi edijithali, amaphutha azovela kuphela ngaphansi kwezimo ezithile. Kungenzeka ukuthi ukuphazamiseka okuningi kuthinte uhlelo lokulawula futhi kubangele amaphutha. Kukhona futhi izinguquko kumapharamitha wengxenye ngayinye noma imingcele yokusebenza iyonke yebhodi lesifunda ukuvimbela ukuphazamiseka. Ikhono lijwayele iphuzu elibucayi, eliholela ekuhlulekeni;
3. Ukuzinza okushisayo kwezingxenye
Kusukela enanini elikhulu lezinqubo zokulondoloza, ukuzinza kokushisa kwe-electrolytic capacitors kungokokuqala ukuba mpofu, kulandelwa amanye ama-capacitor, ama-triodes, ama-diode, ama-IC, ama-resistors, njll.;
4. Umswakama nothuli ebhodini lesekethe.
Umswakama nothuli kuzoqhuba ugesi futhi kube nomphumela wokumelana, futhi inani lokumelana lizoshintsha phakathi nenqubo yokwandisa nokunciphisa okushisayo. Leli nani lokumelana lizoba nomthelela ofanayo nezinye izingxenye. Uma lo mphumela unamandla, uzoshintsha imingcele yesifunda futhi ubangele ukungasebenzi kahle. zenzeka;
5. Isoftware nayo ingenye yezinto ezicatshangelwayo
Amapharamitha amaningi kusekethe alungiswa ngesoftware. Amamajini amanye amapharamitha alungiswa aphansi kakhulu futhi asebangeni elibalulekile. Lapho izimo zokusebenza zomshini zihlangabezana nezizathu zesoftware ukucacisa ukwehluleka, kuzovela i-alamu.
Okwesihlanu, indlela yokuthola ngokushesha ulwazi lwengxenye
Imikhiqizo yesimanje ye-elekthronikhi ihlukahlukene, futhi izinhlobo zezingxenye ziya ngokuya zihlukahluka. Ekugcinweni kwesifunda, ikakhulukazi emkhakheni wokugcinwa kwebhodi lesifunda sezimboni, izingxenye eziningi azibonakali noma azizwakali. Ukwengeza, ngisho noma ulwazi lwezingxenye ebhodini elithile luphelele, Kodwa uma ufuna ukuphequlula futhi uhlaziye le datha ngayinye ngayinye kukhompyutha yakho, uma ingekho indlela yokusesha esheshayo, ukusebenza kahle kwesondlo kuzoncishiswa kakhulu. Emkhakheni wokulungiswa kwe-elekthronikhi yezimboni, ukusebenza kahle kuyimali, futhi ukusebenza kahle kuyafana nemali yephakethe.