Calaamadaynta resistors - yihiin saddex siyaabood ugu weyn

Qof kasta oo ku lug leh dayactirka qalabka elektarooniga ah, og in ay tahay mararka qaarkood loo baahan yahay si loo ogaado dibadda view of resistor ee uu heshaan. Habka ugu fudud ee ah inay ku qiyaasto iska caabin ah la ohmmeter ah, laakiin dhibaato markasta suurtagal ma aha in ay unsolder aan dhaawac guddiga Bannaanka, gaar ahaan a multi-israac raacsan, laakiin ay dhacdo in ay jiraan shaki ku saabsan daacadnimada xiriirrada gudaha. Haddii aad qabto wareeg ah, waxa fudud - waxaad eegi kartaa waxa at oo arka in R18 waa, tusaale ahaan, 47 ohms. Oo haddii qofku uusan, oo aad u baahan tahay si ay u fahmaan, iyo nidaamka yeelan doonaan in ay soo jiidan?

Nasiib wanaag, saarayaasha qaybaha electronic heshiin kasta oo kale, oo waxaa jira heer sixitaanka resistors. True, waxa uu sameeyay isbeddel ah ee labaatankii sano ee la soo dhaafay.

The ugu badan ee aannu mar waa resistors midab-ku suntan. Waa mid aad u fudud, oo wuuna akhriyey heshaan, oo xajinaya wax daqiiqad fudud decoder kartoonada. qalab Tani waa si ballaaran la heli karo, waxaa jira in radio kasta, oo waa mid aad u raqiis ah, si xusuusto qiimaha midabka muhiim ma aha. Calaamadaynta resistors waa in iska caabin ay codsatay siddo rinjiga leh midabyo kala duwan, kuwaasoo mid walba uu muujinaysaa tiro, multiplier a ama sax.

Strips laga heli karaa saddex ilaa shan. iyaga akhri noqdo kan ugu horreeya, u dhaw in ay mid ka mid ah gunaanad ah. Tusaale ahaan, afar strips. First - brown, kan kale - madow, kii saddexaadna - cas, kii afraadna wuxuu ahaa - cawlan. Waxaa lagama maarmaan ah in wac decoder midabada, kuwaas oo, ka maqan saddexaad (waxaa waa in ay doortaan jagada "maya"). dhammayn saxsanaan ah 1 kw 0, 05%. Haddii saddex koox, saxnaanta waa 20%.

Mararka qaarkood waxaa loo baahan yahay in la technology hore Soviet, taas oo weli ku jira isticmaalka macaamilo. Marka, iyada waxaa scolded, ayay u muuqatay sirgaxan oo fool xun, laakiin waqtiga ayaa muujiyeen adkaysi cajiib ah baarka qaar ka mid ah qalabka this, iyo waxa ay haatan u yahay xataa waqtiyada loo yaqaan "guridda." Calaamadaynta Soviet-dhigay resistors xataa fududahay in midabka, waxay si fudud u qoran yihiin heshaan ah, tusaale ahaan, 4K7 ka dhigan 4700 ohms. Taasi oo dhan. Si fudud iyo si cad u. Mid ka mid khasaare - Looxii laga yaabaa hooseysa, RADIOZAVOD Soofiyeeti dhif ah loo isticmaalo "istaagi-up" shirkii iska caabin ah, waxa la jecel yahay by Japanese ah si loo badbaadiyo meel bannaan guddiga.

miniaturization ee saarayaasha qalabka elektarooniga ah ku rid hore ee baahida loo qabo in abuurta hababka cusub ee loo xirxiro. resistors kabida, classical dhex godadkii on board ee "taagan" ama "jiifa" booska qaadataa ilaa meel aad u badan, iyo this waa hab cusub oo ururinayo microplate a - smd. In this gaabinta Ingiriisi - Windows XP saddex erayada: «dusha» - dusha, «Buur» - rakibaadda iyo «technology» - waxaa cad in hab. qaybo yar yar si toos ah soldered in ay dusha track ah, oo aan godad, iyo lugaha. Waxaa qaaday resistors cusub calaamadeynta, iyo waxyaalo kale oo, sida dioska- iyo capacitors iyo sidoo.

Calaamadaynta resistors smd waa xoogaa garabaka hab Soviet jir wanaagsan. Waxay sidoo kale daabacay tirada iyo xarfaha. Farqiga weli waa ay jiraan. Warqadda ayaa had iyo jeer ma la heli karo, haddii loo baahdo, «R» waxaa loo isticmaalaa sida dhibic kala qaybinaysa.

Tusaale ahaan, 2183 ka dhigan tahay in 218 waa loo laablaabi by 1000, jirsado 218 ohms. Resistance, dulqaad ah oo ilaa 10% waxaa lagu calaamadeeyay afar lambar, dambaysta ah waxaa loola jeedaa ilaa xadka ay in la dhiso toban ah iyo natiijada saddex-god a sameeyey by labada lambar ee koobaad bateen.

resistors smd wax yar adag tahay fasalka tayo sare leh, oo leh dulqaad ah 1%. Halkan heerka uu tobanaan nooc warqad, tusaale ahaan, D - 10 waa cubed. Haddii resistor la Isasaaray 10D, waa 10 ohms.

Waxa intaa dheer in miisaska kulan, farsamo u baahan doonaan hal galaas oo weyneyso, sida jilayaasha aad u yar tahay!