Choyamba, chinyengo chaching'ono choyesera ma multimeter a SMT
Zina mwazinthu za SMD ndizochepa kwambiri komanso zovuta kuyesa ndikukonza ndi zolembera wamba zama multimeter. Chimodzi ndi chakuti n'zosavuta kuyambitsa dera lalifupi, ndipo lina ndiloti ndizovuta kuti bolodi la dera lomwe limakutidwa ndi chophimba chotetezera kukhudza gawo lachitsulo la pini ya chigawocho. Nayi njira yosavuta yowuzira aliyense, idzabweretsa kumasuka kwambiri pakuzindikira.

Tengani singano zing'onozing'ono ziwiri zosokera, (Deep Industrial Control Maintenance Technology Column), zitsekeni ku cholembera cha multimeter, kenako tengani waya woonda wamkuwa kuchokera ku chingwe chamitundu yambiri, ndikumanga singano ndi singano Pamodzi, gwiritsani ntchito solder solder mwamphamvu. Mwanjira imeneyi, palibe chiopsezo cha dera lalifupi poyezera zigawo za SMT ndi cholembera choyesera ndi nsonga yaing'ono ya singano, ndipo nsonga ya singano imatha kuboola chophimba choteteza ndikugunda zigawo zikuluzikulu mwachindunji, popanda kuvutikira kukwapula filimuyo. .

Chachiwiri, njira yokonza bwalo dera gulu mphamvu yaufupi dera vuto
Pokonza bolodi la dera, ngati mukukumana ndi kagawo kakang'ono ka magetsi a anthu, vuto nthawi zambiri limakhala lalikulu, chifukwa zipangizo zambiri zimagawana mphamvu zofanana, ndipo chipangizo chilichonse chogwiritsira ntchito magetsi chimaganiziridwa kuti ndi chochepa. Ngati palibe zigawo zambiri pa bolodi, gwiritsani ntchito "hoe the earth" Pambuyo pake, mungapeze mfundo yachidule. Ngati pali zigawo zambiri, zimatengera mwayi "kulima dziko lapansi" kuti lifike. Njira yothandiza kwambiri ikulimbikitsidwa apa. Kugwiritsa ntchito njirayi kudzapeza zotsatira ziwiri ndi theka la khama ndipo nthawi zambiri mumapeza vuto mwamsanga.

Ndikofunikira kukhala ndi magetsi osinthika komanso apano, voteji 0-30V, 0-3A yapano, magetsi awa si okwera mtengo, pafupifupi 300 yuan. Sinthani voteji yotseguka ku chipangizo chamagetsi chamagetsi, choyamba sinthani zomwe zilipo kuti zichepetse, onjezani voteji pagawo lamagetsi amagetsi, monga ma 5V ndi 0V terminals a 74 series chip, kutengera mlingo wafupikitsa, pang'onopang'ono kuwonjezera panopa. Gwirani chipangizocho ndi dzanja. Mukakhudza chipangizo chomwe chimatentha kwambiri, nthawi zambiri izi zimakhala chigawo chowonongeka, chomwe chimatha kuchotsedwa kuti chiyesedwe ndi kutsimikiziranso. Zoonadi, voteji sayenera kupitirira mphamvu yogwiritsira ntchito chipangizo panthawi yogwira ntchito, ndipo kugwirizanako sikungasinthidwe, mwinamwake kudzatentha zipangizo zina zabwino.

Chachitatu. Chofufutira chaching'ono chimatha kuthetsa mavuto akulu
Mabodi ochulukirachulukira amagwiritsidwa ntchito poyang'anira mafakitale, ndipo matabwa ambiri amagwiritsa ntchito zala zagolide kuti alowemo m'mipata. Chifukwa cha malo ovuta a mafakitale, malo afumbi, chinyezi, komanso mpweya wowononga, gululo likhoza kukhala ndi vuto lolumikizana bwino. Anzanu atha kuthetsa vutoli posintha bolodi, koma mtengo wogulira bolodi ndi wokwera kwambiri, makamaka matabwa a zida zina zochokera kunja. M'malo mwake, mutha kugwiritsanso ntchito chofufutira kutikita chala chagolide kangapo, kutsuka dothi pachala chagolide, ndikuyesanso makinawo. Vuto likhoza kuthetsedwa! Njirayi ndi yosavuta komanso yothandiza.

Chachiwiri. Kuwunika kwa zolakwika zamagetsi munthawi zabwino komanso zoyipa
Pakutheka, zovuta zosiyanasiyana zamagetsi zokhala ndi nthawi zabwino ndi zoyipa zimaphatikizapo izi:
1. Kusalumikizana bwino
Kulumikizana koyipa pakati pa bolodi ndi kagawo, chingwe chikathyoledwa mkati, sichingagwire ntchito, pulagi ndi cholumikizira ma waya sichimalumikizana, ndipo zigawozo zimagulitsidwa.
2. Chizindikiro chimasokonezedwa
Kwa mabwalo a digito, zolakwika zimangowonekera pamikhalidwe ina. N'zotheka kuti kusokoneza kwakukulu kwakhudza dongosolo lolamulira ndikuyambitsa zolakwika. Palinso kusintha kwa magawo a gawo lililonse kapena magawo onse ogwirira ntchito a board board kuti apewe kusokoneza. Luso limakhala pa mfundo yovuta, yomwe imabweretsa kulephera;
3. Kusakhazikika kwa kutentha kwa zigawo
Kuchokera kuzinthu zambiri zosamalira, kutentha kwa kutentha kwa electrolytic capacitors ndikoyamba kukhala kosauka, kutsatiridwa ndi ma capacitors ena, ma triodes, diode, ICs, resistors, etc.;
4. Chinyezi ndi fumbi pa bolodi la dera.
Chinyezi ndi fumbi zidzayendetsa magetsi ndikukhala ndi mphamvu yotsutsa, ndipo mtengo wotsutsa udzasintha panthawi ya kukula kwa kutentha ndi kutsika. Mtengo wotsutsa uwu udzakhala ndi zotsatira zofanana ndi zigawo zina. Pamene zotsatira zake zimakhala zamphamvu, zidzasintha magawo a dera ndikuyambitsa zovuta. kuchitika;
5. Mapulogalamu ndi chimodzi mwazolingalira
Magawo ambiri ozungulira amasinthidwa ndi mapulogalamu. Mphepete mwa magawo ena amasinthidwa kukhala otsika kwambiri ndipo ali pamlingo wovuta kwambiri. Pamene machitidwe ogwiritsira ntchito makina akukumana ndi zifukwa za pulogalamuyo kuti adziwe kulephera, ndiye kuti alamu idzawonekera.

Chachisanu, momwe mungapezere zambiri zamagulu
Zogulitsa zamakono zamakono zimakhala zosiyana, ndipo mitundu ya zigawozi ikukhala yosiyana kwambiri. Pokonza dera, makamaka m'munda wa kukonza bolodi loyang'anira mafakitale, zigawo zambiri sizikuwoneka kapena zosamveka. Kuonjezera apo, ngakhale zidziwitso pazigawo za bolodi zina zatha, Koma ngati mukufuna kuyang'ana ndi kusanthula deta iyi imodzi ndi imodzi mu kompyuta yanu, ngati palibe njira yofufuzira mwamsanga, kukonza bwino kudzachepetsedwa kwambiri. Pankhani yokonza zamagetsi zamafakitale, kuchita bwino ndi ndalama, ndipo kuchita bwino kumakhala kofanana ndi ndalama zam'thumba.