Mtengo resistor - njira ya kujambula

Resistors - zinthu madera magetsi ndi kukana kuti ndimeyi la magetsi. Iwo ntchito mu madera onse magetsi, ngakhale mu pulayimale kwambiri. Kusiyanitsa resistors ndi mbali zotsatirazi: mphamvu pa kukana mwadzina la kalasi molondola maganizo, etc. M'nkhaniyi, tiona chinthu monga mtengo kukana.. Ndi chiyani icho? Mu chipembedzo cha zinthu kukana zikutanthauza mtengo mlingo kukaniza mkati mwa ndime ya magetsi therethrough panopa. Mtengo magetsi resistor ndiwo amaimira Latin zilembo R. Khalidwe limeneli nthawi olembedwa mayunitsi amenewa, monga Om. Limeneli liyenera unatchedwa wotchuka German sayansi Georg Simon Ohm, amadziwika ntchito yake m'munda wa magetsi. Kodi muyenera kudziwa ubwino resistors? Kodi mungasankhe zinthu yoyenera chiwembu cholinga kukatenga ndi analogi chipangizo kukonza.

Taganizirani kujambula njira mwadzina kukana mfundo pa mbali nyumba. Pali njira zitatu chodetsa resistors: Intaneti - zikuphatikizapo manambala yekha; khalidwe - ndi zimagwira pamodzi ndi manambala ndi makalata alipo; ndipo potsiriza mtundu - ndi mndandanda wa magulu yopingasa a mitundu yosiyanasiyana, chiwerengero cha misewu ndi osiyana, 3 mpaka 5.

Komanso yosanthula monga zalembedwera resistor mtengo malingana ndi mtundu wa chinthu. Zonse kukana waya-mtundu zinthu ndi cylindrical mbiya. Zachulukazi ndi chizindikiro cha zinthu m'njira zonse zitatu. Intaneti kujambula ntchito okha resistors, mtengo wa mtengo mwadzina la zomwe si upambana 999 ohms. Izo zikuwoneka motere: 2.0; 220; 750. Njira ankalemekeza 2 ohms, 220 ohms ndi 750 ohms. Kenako mtundu kujambula amagwiritsa makalata koma a zilembo Latin: R - ndi gulu; K - ndi kilo, mwachitsanzo 1000; M - Mega, mwachitsanzo 1000000. Iwo likukhalira kuti njira imeneyi kujambula, pofuna kupeza phindu resistor ayenera kukhala mtengo M'ndandanda kuchulukitsa ndi mtengo wa weniweni. Chitsanzo cha mbiri yotero 220 R - 220 ohms zikutanthauza; 3K2 - zikutanthauza 3200 ohms; 1M1 - zikutanthauza 1100 ohms.

Mtundu 'kala' ikusonyeza kufunika oveteredwa umagwiritsidwa kudutsa kujambula wa membala cylindrical thupi. The resistors Soviet zopangidwa chodetsa anali ntchito ndi kuchepetsa ku mbali imodzi, umasonyeza chiyambi cha decoding lapansi. Mu zinthu zamakono otsiriza gulu zonse golide kapena siliva bala code, ndipo izo zikutanthauza kulimbikira molondola kalasi (5 kapena 10 peresenti). Kukachitika kuti kulemba tichipeza magulu atatu okha, ndi kusakhulupirika kulolerana kalasi amatanthauza 20 peresenti. Kabisidwe tichipeza magulu 3-4 choyamba mtengo awiri zizindikiro mtengo mwadzina, ndi wachitatu - kufunika multiplier lapansi. Kabisidwe a magulu 5-6 choyamba mtengo atatu limapangidwa mwadzina, ndi wachinayi - kufunika multiplier lapansi.

Kenako view kukana - ndi Chip resistor kapena SMD-resistor. Chonchi resistors chodetsa ndi M'ndandanda ndi yophiphiritsa. Iye amangoima: mu digito chosonyeza manambala woyamba zikusonyeza kufunika mwadzina Ndiyeno iwowa ndi chiwerengero cha ziro; chikhalidwe - woyamba manambala awiri amasonyeza chipembedzo, ndi khalidwe lomaliza - kufunika multiplier lapansi.

Mu a resistor variable , muyezo kujambula kufunika mwadzina ntchito manambala ndi zilembo za alifabeti Latin.