Menene resistor? Alama, Nau'i, Toshe, Aikace-aikace
Abubuwa
A resistor wani abu ne na wutan lantarki mai amfani da tasha biyu wanda kaya lantarki juriya a matsayin nau'in kewayawa don iyakance kwararar wutar lantarki. Ana amfani da shi a cikin da'irori na lantarki don rabuwar wutar lantarki, raguwa na yanzu, danne amo da tacewa.
Amma resistor fiye da haka fiye da wannan. Don haka idan kun kasance sababbi ga kayan lantarki ko kuma kawai kuna son ƙarin koyo game da menene resistor, to wannan gidan yanar gizon shine a gare ku!
Menene resistor ke yi a kewayen lantarki?
resistor shine bangaren lantarki sarrafawa gudanawar halin yanzu a cikin kewayawa kuma yana tsayayya da kwararar wutar lantarki. Resistors suna hana hawan jini, hawan jini da tsangwama daga isa ga kayan lantarki masu mahimmanci kamar na'urorin lantarki na dijital.
Alamar adawa da naúrar
Ƙungiyar juriya ita ce Ohm (alama Ω).
Ƙayyadaddun ƙira
Resistors abubuwa ne na lantarki ƙuntata kwarara wutar lantarki zuwa ƙimar da aka bayar. Mafi sauƙaƙan resistors suna da tashoshi biyu, ɗaya daga cikinsu ana kiransa "common terminal" ko "ƙasar ƙasa" ɗayan kuma ana kiranta da "ƙasar ƙasa". Resistors abubuwa ne na tushen waya, amma kuma an yi amfani da wasu geometries.
Ina fatan yanzu kun fahimci menene resistor.
Biyu da suka fi kowa adadi na geometric su ne block da ake kira "chip resistor" da kuma maballin da ake kira "carbon compound resistor".
Resistors suna da ratsi masu launi kewaye da jikinsu don nuna ƙimar juriya.
Resistor lambar launi
Resistors za a yi musu launi don wakiltar su yawan lantarki. Ya dogara ne akan ma'auni na ƙididdigewa wanda aka samo asali a cikin 1950s ta Ƙungiyar Masu Samar da Kayan Lantarki ta United. Lambar ta ƙunshi sanduna masu launi uku, waɗanda ke nuna daga hagu zuwa dama manyan lambobi, adadin sifilai da kewayon haƙuri.
Anan akwai tebur na lambobin launi na resistor.
Hakanan zaka iya amfani da kalkuleta lambar launi resistor.
Nau'in masu adawa
Nau'in masu adawa suna samuwa a cikin da yawa daban-daban Dimensions, siffofin, rated iko и iyakar ƙarfin lantarki. Sanin nau'in resistor yana da mahimmanci lokacin zabar resistor don kewayawa saboda kuna buƙatar sanin yadda za ta yi a wasu yanayi.
carbon resistor
The carbon fili resistor yana daya daga cikin mafi yawan nau'ikan resistors da ake amfani da su a yau. Yana da kyakkyawan kwanciyar hankali na zafin jiki, ƙarancin amo kuma ana iya amfani dashi a cikin kewayon mitar mai faɗi. Ba a ƙirƙira masu juzu'i na fili na carbon don aikace-aikacen ɓarna mai ƙarfi ba.
karfe film resistor
Fim ɗin fim ɗin ƙarfe ya ƙunshi da farko na suturar sputtered akan aluminum wanda ke aiki azaman abu mai juriya, tare da ƙarin yadudduka don samar da kariya daga zafi, da kuma abin rufe fuska don kammala kunshin. Dangane da nau'in, za'a iya tsara resistor film resistor don babban madaidaici ko aikace-aikacen wutar lantarki.
Carbon film resistor
Wannan resistor yayi kama da ƙira zuwa na'urar fim ɗin ƙarfe, sai dai yana ƙunshe da ƙarin yadudduka na kayan hanawa tsakanin nau'in juzu'i da kayan kwalliya don samar da ƙarin kariya daga zafi da halin yanzu. Dangane da nau'in, ana iya tsara mai tsayayyar fim ɗin carbon don babban madaidaici ko aikace-aikacen wutar lantarki.
Wire rauni resistor
Wannan kalma ce ta kama-duk ga duk wani resistor inda aka yi juriya kashi na waya maimakon siriri kamar yadda aka bayyana a sama. Ana amfani da na'urori masu amfani da waya sosai lokacin da resistor dole ne ya jure ko ya watsar da manyan matakan wuta.
High ƙarfin lantarki m resistor
Wannan resistor yana da carbon maimakon siriri fim resistive element kuma ana amfani dashi a aikace-aikacen da ke buƙatar keɓewar babban ƙarfin lantarki da babban kwanciyar hankali a yanayin zafi mai tsayi.
Potentiometer
Za'a iya tunanin potentiometer azaman resistors masu canzawa guda biyu waɗanda aka haɗa cikin anti-parallel. Juriya tsakanin madaidaicin waje guda biyu zai canza yayin da mai gogewa ke motsawa tare da jagora har sai an kai matsakaicin iyaka da ƙananan iyaka.
thermistor
Wannan resistor yana da ingantaccen yanayin zafin jiki, wanda ke haifar da juriya ta haɓaka tare da ƙara yawan zafin jiki. A mafi yawan lokuta, ana amfani da shi ne saboda rashin daidaituwar yanayin zafinsa na juriya, inda juriyarsa ke raguwa tare da ƙara yawan zafin jiki.
varistor
Wannan resistor an ƙera shi ne don kare da'irori daga babban ƙarfin wutar lantarki ta hanyar fara samar da juriya mai tsayi sosai sannan a rage shi zuwa ƙananan ƙima a mafi girman ƙarfin lantarki. varistor zai ci gaba da watsar da makamashin lantarki da ake amfani da shi azaman zafi har sai ya lalace.
SMD resistors
Su ne kananan, ba sa buƙatar abubuwan hawa don shigarwa kuma ana iya amfani da su sosai babban yawa raga. Rashin hasara na SMD resistors shine cewa suna da ƙarancin zafi da ke watsar da sararin sama fiye da masu tsayayyar ramuka, don haka ƙarfin su ya ragu.
SMD resistors yawanci ana yin su ne daga керамический kayan aiki.
SMD resistors yawanci sun fi ƙanƙanta fiye da masu tsayayyar ramuka saboda basa buƙatar faranti masu hawa ko ramukan PCB don girka. Hakanan suna ɗaukar ƙarancin sarari na PCB, yana haifar da haɓakar da'ira mafi girma.
M aibi Yin amfani da masu adawa da SMD shine cewa suna da ƙasa da ƙarancin zafi fiye da ramuka, don haka an rage ƙarfin su. Su kuma ya fi wuyar samarwa da siyarwa fiye da ta hanyar resistors saboda siraran wayoyin gubar su.
SMD resistors an fara gabatar da su a ƙarshe 1980s. Tun daga wannan lokacin, an haɓaka ƙanana, ƙarin ingantattun fasahohin resistor, irin su Metal Glazed Resistor Networks (MoGL) da Chip Resistor Arrays (CRA), wanda ya haifar da ƙara raguwar resistors SMD.
A yau, fasahar Resistor SMD ita ce fasahar da aka fi amfani da ita; yana sauri rinjaye fasaha. Resistors ta hanyar rami suna zama tarihi da sauri saboda yanzu an keɓe su don aikace-aikacen alkuki kamar sautin mota, walƙiya mataki da kayan kida na "classic".
Amfani da resistors
Ana amfani da juriya a allunan da'ira na rediyo, talabijin, tarho, ƙididdiga, kayan aiki, da batura.
Akwai nau'ikan resistors iri-iri, kowannensu yana da nasa aikace-aikace. Wasu misalan amfani da resistors:
- Na'urorin kariya: Ana iya amfani da shi don kare na'urori daga lalacewa ta hanyar iyakance halin yanzu da ke gudana ta cikin su.
- Tsarin wutar lantarki: Ana iya amfani dashi don daidaita ƙarfin lantarki a cikin kewaye.
- Kula da yanayin zafi: Ana iya amfani dashi don sarrafa zafin na'urar ta hanyar watsar da zafi.
- Rage sigina: Ana iya amfani dashi don ragewa ko rage ƙarfin sigina.
Hakanan ana amfani da masu adawa a cikin yawancin kayan gida na gama gari. Wasu misalan na'urorin gida:
- Fitila masu haske: Ana amfani da resistor a cikin kwan fitila don daidaita halin yanzu da ƙirƙirar haske mai tsayi.
- Tanda: Ana amfani da resistor a cikin tanda don iyakance yawan adadin halin yanzu ta hanyar dumama. Wannan yana taimakawa hana nau'in daga zazzagewa da lalata tanda.
- Toasters: Ana amfani da resistor a cikin toaster don iyakance adadin abubuwan da ke wucewa ta yanzu. Wannan yana taimakawa hana nau'in daga zafi fiye da kima da lalata toaster.
- Masu yin kofi: Ana amfani da resistor a cikin mai yin kofi don iyakance adadin halin yanzu ta hanyar dumama. Wannan yana taimakawa hana nau'in daga zazzagewa da lalata mai yin kofi.
Resistors wani muhimmin bangare ne na lantarki na dijital kuma ana amfani da su a aikace-aikace iri-iri. Ana samun su a cikin matakan haƙuri da yawa, wattages da ƙimar juriya.
Yadda ake amfani da resistors a cikin da'ira
Akwai hanyoyi guda biyu don amfani da su a cikin da'irar lantarki.
- Resistors a cikin jerin su ne resistors wanda a cikinsa dole ne sai da wutar lantarki ya gudana ta kowace resistor. An haɗa su a jere, tare da resistor ɗaya kusa da ɗayan. Lokacin da aka haɗa resistors biyu ko fiye a jere, jimlar juriyar da'irar tana ƙaruwa bisa ga ka'ida:
Robsch = R1 + R2 + ………Rн
- Resistors a layi daya resistors da ke da alaƙa da rassa daban-daban na kewayen lantarki. Ana kuma san su da layi daya da aka haɗa resistors. Lokacin da aka haɗa resistors biyu ko sama da haka a layi daya, suna raba jumlolin da ke gudana ta kewaye ba tare da canza wutar lantarki ba.
Don nemo daidai juriyar juriya na layi daya, yi amfani da wannan dabara:
1/Req = 1/R1 + 1/R2 + …….1/rn
Wutar lantarki a kan kowane resistor dole ne ya zama iri ɗaya. Misali, idan an haɗa resistors 100 ohm guda huɗu a layi daya, to duk huɗun zasu sami juriya daidai 25 ohms.
Abin da ke wucewa ta hanyar da'ira na yanzu zai kasance iri ɗaya kamar idan an yi amfani da resistor guda ɗaya. Wutar lantarkin da ke kan kowane resistor 100 ohm yana da rabi, don haka maimakon 400 volts, kowane resistor yanzu yana da 25 volts kawai.
Dokar Ohm
Dokokin Ohm shine mafi sauki duk dokokin da'irar lantarki. Ya bayyana cewa "haɗin da ke ratsawa ta hanyar madugu tsakanin maki biyu yana daidaitawa kai tsaye da bambancin wutar lantarki tsakanin maki biyu da kuma sabanin juriyar da ke tsakanin su."
V = I x R ko V/I = R
ku,
V = ƙarfin lantarki (volts)
I = halin yanzu (amps)
R = juriya (ohm)
Akwai nau'ikan dokar Ohm guda 3 tare da aikace-aikace da yawa. Za a iya amfani da zaɓi na farko don ƙididdige juriyar da aka sani.
Za a iya amfani da zaɓi na biyu don ƙididdige juriyar faɗuwar wutar lantarki da aka sani.
Kuma a cikin zaɓi na uku, zaku iya lissafin halin yanzu.
Koyarwar bidiyo game da menene resistor
Ƙarin game da resistors.
ƙarshe
Na gode da karantawa! Ina fatan kun koyi menene resistor da kuma yadda yake sarrafa kwararar halin yanzu. Idan kun sami wahalar koyon lantarki, kar ku damu. Muna da sauran rubuce-rubuce da bidiyoyi da yawa don koya muku ainihin kayan lantarki.
sharhi daya
Yat Dara
Yayi kyau