I-Carbon Film Resistor: Okuyisisekelo kuzinhlelo zokusebenza ezithuthukile
2024-09-02 2400

Ukumelana kwefilimu kwekhabhoni kuyasebenza ekuphathweni kwemigomo kagesi ngaphakathi kwemibuthano ye-elektroniki, kuqinisa izakhiwo zazo ezihlukile nezezinto ezibonakalayo ukuze kuqinisekiswe ukunemba nokwethembeka.Yakhelwe i-Ceramic Rod ehlanganiswe ungqimba oluncane lwekhabhoni emsulwa, laba bamelana nalaba basebenzise amandla abo okulawula ukuhamba kukagesi kahle.Inqubo yokwenza laba bamelana ifaka phakathi ukufakwa okuningiliziwe kwekhabhoni ku-ceramic, kulandelwe ukusikwa okunembile okuphelelisiwe ethangeni lekhabhoni.Lokhu kusika kubaluleke kakhulu njengoba kunwebeka indlela kagesi futhi kunqande into yokumelana, inika amandla izinguquko ezicace bha ekumelaneni nalo lonke.Lokhu kwamandla okumelana kahle nokumelana okuhle kuyasiza, ikakhulukazi kuzinhlelo zokusebenza lapho kudingeka khona ukumelana kukagesi ngqo ukuze kuqinisekiswe ukusebenza kahle kwesekethe.

Namabhuku

Umdwebo 1: Ukuqonda I-Carbon Resistor Resistor

Isingeniso ku-Carbon film Resistors

Abamela amafilimu ekhabhoni badlala indima ebalulekile emibuthanweni ye-elekthronikhi.Bakhiwe ngenduku yobumba, ehlanganiswe ungqimba oluncane lwekhabhoni emsulwa.Le ngqimba yekhabhoni yinto eyinhloko elawula ukugeleza kwamanje kagesi.Inqubo yokukhiqiza ifaka ukubeka kahle i-carbon endukuzeni ye-ceramic.Ngemuva kwalokho, ukusikwa kwemvelo kwenziwa engxenyeni yekhabhoni, esebenza ngezinhloso ezimbili eziphambili: Kukhulisa ibanga ama-elektroni adinga ukuhamba, futhi kunciphisa indlela yekhabhoni.Lezi zinguquko zivumela ukuhlelwa okuhle kwenani lokumelana nokumelana nokuphikiswa.

Ukumelana nomphikisi wefilimu wekhabhoni kuncike ezicini eziningana, kufaka phakathi ubude, ububanzi, futhi Ubukhulu befilimu yekhabhoni.Ukusikwa kwe-Helical kudala isakhiwo esinjengekhokho entweni emelana nalokho, eyethula inani elincane le-intanethi.Lokhu kudonswa kungathonya ukusebenza kwe-Resistor's ku-Radio Frequency (RF), kwesinye isikhathi kuholela ekuhlukaneni okungafuneki.Ezimweni lapho ukunciphisa ukungena kwe-induclance kuyasiza, njengokusetshenziswa kwe-RF, ukumelana ngaphandle kokusikwa kwe-Helical kukhethwa ngoba kukhombisa ukuzilibazisa okuphansi kakhulu.

Umdwebo 2: Ukuphikiswa kwefilimu yekhabhoni kuchaziwe

Esinye isimilo esibalulekile se-carbon filmil prossion coueffleeflication yazo ezingezinhle, okusho ukuthi ukumelana kwabo kuyancipha njengoba izinga lokushisa liyanda.Lo mkhakha uyasiza ezinhlelweni ezidinga ukuqina emazingeni okushisa ahlukahlukene.Ngokwengeziwe, ukumelana kwefilimu yekhabhoni kukhiqiza umsindo omncane uma kuqhathaniswa nabamelana nemininingwane yekhabhoni, okubenza basebenzise kahle ngokunemba ngogesi lapho umsindo ophansi uyinto ebaluleke kakhulu.Inhlanganisela yokumelana okuguquguqukayo, i-wactance ephansi, kanye nezindawo ezizinzile zokushisa zenza ukumelana ne-carbon amafilimu alungele kahle izinhlobo eziningi ezibucayi kagesi.

Ukukhiqiza ama-carbon amafilimu

Ukuvikelwa kwefilimu yekhabhoni kubandakanya inqubo elawulwa kakhulu eqala ngama-ceramic izinduku ezibekwe egumbini lapho izinga lokushisa nengcindezi zilawulwa ngokucophelela khona.Amagesi we-Hydrocarbon, imvamisa i-methane noma i-benzene, afudunyezwa cishe ngo-1000 ° C.Kulesi silinganiso esiphakeme, amagesi abola, abangela ama-athomu e-carbon ukufaka izinduku ze-ceramic, adale ifilimu elincanyana elifanayo elilinganayo elikha umnyombo wokusebenza komphikisi.

Ngemuva kokuthi kusetshenziswe ifilimu yekhabhoni, igxathu elilandelayo ukunamathisela ama-metal ukuphela cap to the rods.Lezi zimbobo zilusizo ngoba zisungula ukuxhumana kukagesi phakathi kwefilimu yekhabhoni kanye nomjikelezo lapho kuzosetshenziswa khona umhlangano.Ukulandela lokhu, ukusikwa ngomoya kwenziwa ngefilimu yekhabhoni.Ukusikwa kwe-Helical kuwukusebenza okuqondile, okuwusizo ekuhleleni kahle izakhiwo zikagesi zokuphikisana.Ngokulawula ukujula, i-angle, kanye nokuphamba kwalokhu kunqunywe, indlela kagesi ngefilimu yekhabhoni ide kakhulu, ngaleyo ndlela uguqule ukumelana nokuphikiswa kokuhlangabezana nezidingo ezithile.

Lapho ukumelana nokumelana nokuphikiswa kulinganiswa, isinyathelo sokugcina sokuvumela lonke umcimbi wonke endaweni yokuvikela.Le Resin Coating ilusizo ngezizathu eziningana: Ivikela ifilimu lekhabhoni kusuka ekulimaleni ngokomzimba ngesikhathi sokuphatha nokufaka, kuvimbela ukungcoliswa kwezici zezemvelo, futhi kuvimbela ukusebenza komswakama.I-Resin Encapsulation iqinisekisa ukuthi abamelayo bahlala isikhathi eside futhi bethembekile, belula impilo yabo yokusebenza kwabo.

Izici nokucaciswa kwabaphikisayo bekhabhoni yefilimu

Umdwebo 3: Ukumelana Kwefilimu Kwekhabhoni

Ukumelana kwefilimu kwekhabhoni kwaziwa ngokunemba kwabo nokuncika, okunikeza izimfanelo ezithile ezihlangabezana nezidingo eziningi zobuchwepheshe.Nakhu ukuwohloka okuningiliziwe kwezici zabo eziphambili:

Amazinga wokubekezelela: Ukuphikiswa kwefilimu kwekhabhoni kuza nezinketho zokubekezelela ze- ± 2 2%, ± 5%, ± 10%, kanye ± 20%.Lawa mazinga ahlukene wokubekezelela anikeza onjiniyela ukuguquguquka kokukhetha ukunemba okulungile kwemiklamo ehlukahlukene yesifunda, okuvumela ukuhlelwa okuhle nokwenza kahle kwezinhlelo ze-elekthronikhi.

Ububanzi bokumelana: Abaphikisi batholakala ngamanani ahlukahlukene wokumelana, kusukela ngaphansi kwe-1 ohm kuze kube yi-10 Megohms.Leli nto ebanzi libenza baguquguquke ngezicelo eziningi, noma ngabe basetshenziswa njengezakhi eziphansi zokumelana noma njengezinto ezimelana nokumelana kakhulu komthethonqubo we-voltage.

Ukuphila Isikhathi Eside: Ukumelana kwamafilimu kwekhabhoni kuzinzile ngokumangazayo, ngokuvimbela okujwayelekile kokuphikiswa okungama-2% kuphela ngemuva kwamahora ayi-1000 okusetshenziswa okuqhubekayo.Lokhu kuzinza kuwusizo kuzinhlelo zokusebenza ezifuna ukuthembeka kwesikhathi eside ngaphandle kwesidingo sokuphinda kwenziwe kabusha.

Ileveli yomsindo: Enye yezici zokusukuma zalaba bamelana nezinga labo eliphansi lemisindo eliphansi, lifinyelela ku-20 μv / v.Lo msindo ophansi ubaluleke kakhulu kwimishini yokulalela yomsindo ephezulu kanye nezinsimbi zokulinganisa ngokunemba, lapho amasiginali angaphandle angahlehlisa khona ukusebenza.

Ukuphendula okushisa: I-coufficy yokushisa yalaba bantu bamelana ne- ± 200 ppm / ° C idlula ngaphezulu kwe-1500 ppm / ° C, ekhombisa ukuthi izinguquko zazo zokungamelana nokushisa.Lokhu kucaciswa kuyasiza kumadivayisi asebenza ezindaweni zokushisa ahlukahlukene, eqinisekisa ukusebenza okungaguquki nokuthembekile.

Ukuzwela kukaVoltage: Ngokusebenzisana okuphansi kakhulu kwe-voltage ka-0.0005% / V, ama-carbon amafilimu e-carbon agcina ukumelana ezinzile noma ngabe ugesi ushintsha.Lokhu kuzinza kubalulekile kwimibuthano edinga ukwenza ngokuthembekile ngaphansi kwemithwalo ehlukene kagesi.

Ukushisa okusebenzayo okuphezulu: Lokhu kumelana kwakhiwe ukubekezelela amazinga okushisa aze afike ku-150 ° C, okwenza alungele ukusetshenziswa ezindaweni ezishisa kakhulu njengamayunithi wamandla nemishini yezimboni.

Inhlanganisela yalezi zici zokusebenza kanye nokucaciswa kwenza ukumelana ne-carbon film akwazi ukuzivumelanisa nezimo futhi kuthembeke ezinhlotsheni ezibanzi zohlobo lwe-elekthronikhi.Kusuka ku-elekthronikhi yabathengi ezinhlelweni zezimboni, baqinisekisa ukusebenza okuhle nokuqina okuhlala isikhathi eside.

Izicelo ze-Carbon film

Ukumelana kwefilimu kwekhabhoni kusebenza ngempumelelo ezindaweni lapho ama-voltage aphezulu nokushisa okuphezulu kuvamile, kubenza balusizo ezinhlelweni ezithuthukile zikagesi kanye ne-elekthronikhi.Lokhu kumelana nakho kungaphatha ama-voltage afinyelela ku-15 KV, okubenza balusizo kumandla anamandla aphezulu anamandla lapho kusebenza khona ukucindezela.Amandla abo okumelana namazinga okushisa aze afike ku-350 ° C enza abe elungele ukusetshenziswa kuzicelo ezijulile ezinjengezinhlelo ze-radar, ama-X-ray technologies, kanye nobuchwepheshe be-laser.

Ukuqina kwabo nokusebenza okuzinzile ngaphansi kwezimo ezedlulele kugcizelela ukubaluleka kwazo ezinhlelweni eziyinkimbinkimbi ze-elekthronikhi.Uhlobo oluqinile lwe-carbon film eqinisekisa ukuthi lusebenza ngokuthembekile ngisho nasezimweni eziyinselelo, ukunciphisa ubungozi bokwehluleka kohlelo kuzicelo ezisebenzayo zokuphepha.Lokhu kuthembeka kubenza babe ukukhetha okuthandwa ngunjiniyela kanye nabaqambi abadinga izakhi ezingahlangabezana nezidingo ezinzima zamaphrojekthi anamuhla aphezulu obuchwepheshe.Ngokuqina kwabo okusebenzayo kanye namandla abo okusebenza ngaphansi kwemithwalo kagesi esindayo kanye nezimo ezinzima zezemvelo, abamelana ne-carbon film badlala indima ephumelelayo ekunikezeni izinto ezintsha ezinhlelweni eziphezulu zokusebenza.

Izinzuzo kanye Nezinkinga

Ukumelana kwefilimu kwekhabhoni kunikeza izinzuzo eziningana ngaphezulu kokumelana nokwakhiwa kwekhabhoni, ikakhulukazi ngokuya ngokuqina kwezinga lokushisa kanye nokuncishiswa komsindo.Imiphumela yabo yedizayini ku-coefficial yokushisa ephansi, okusho ukuthi ukumelana kwabo kuthinteka kancane ngezinguquko zokushisa.Lokhu kuzinza kuwusizo ekugcineni ukunemba kwamadivayisi kagesi ezindaweni lapho amazinga okushisa eguquguquka.Ngaphezu kwalokho, ukumelana kwamafilimu amakhabhoni kukhiqize umsindo omncane kakhulu kunomelaphi wokuphikiswa kwekhabhoni, okwenza balungele imishini yokulinganisa namadivayisi wokulinganisa abucayi lapho ukucaca kwesiginali kuwusizo khona.

Kodwa-ke, uma kuqhathaniswa ne-metal film film kanye nensimbi yokuphikiswa kwefilimu, ukumelana kwefilimu yekhabhoni kunemikhawulo ethile.Ukumelana okwenziwe ngensimbi kuvame ukuhlinzeka ngobubanzi obubanzi bamanani wokumelana kanye nezimpawu zokusebenza eziphakeme zokusebenza.Lokhu kufaka amazinga aphezulu okubekezelela nokuphila isikhathi eside, imvamisa ngaphandle kokunyuka okuningana kwezindleko.Ngenxa yalezi zinto ezithuthukisiwe, amafilimu ensimbi kanye nensimbi yokumelana nensimbi yensimbi kuvame ukuthandwa ngezicelo ezidinga ukunemba okuphezulu.

Noma ngalezi zingqinamba, ukumelana kwamafilimu amakhabhoni kusasetshenziswa kabanzi embonini yama-elekthronikhi ngenxa yokuqina kwabo nokusebenza okuthembekile.Bafika ngamanani ahlukahlukene okumelana kanye nezilinganiso zamandla, kusuka kuma-fress of at watts to ama-watts amabili, okwenza baguquguquke ngokwanele ukuba bahlangane nezidingo ezahlukahlukene zokuklama isifunda.Ukuqina kwabo kanye nokusebenza kwezindleko kubalwe kube yisinqumo esisebenzayo sohlelo lokusebenza oluningi lwe-elekthronikhi, lapho ibhalansi phakathi kokusebenza nokufinyeleleka kubalulekile.

Umdwebo 4: Ukuphikiswa kwe-Carbon film- amagajethi alula emishini eyinkimbinkimbi

Ukugcina

Ukumelana kwefilimu kwekhabhoni kuhlanganisa inhlanganisela yokwethenjwa kwendabuko nokunemba kwanamuhla, kubenza baphumelele ekwakhiweni kwamadivayisi kagesi wesimanje.Balinganisela ukusebenza ngokusebenza kwezindleko, okwenza babe inketho ekhangayo yezinhlelo ezahlukahlukene zezicelo ezidinga ukucatshangelwa kwezomnotho nakwezobuchwepheshe.Naphezu kwezinselelo ezivela kwezinye ubuchwepheshe be-resistor ezingase zinikeze amabanga abanzi wokumelana noma amazinga aphezulu okubekezelela, ama-carbon fili e-carbor bamba umhlabathi wabo ngenxa yezakhiwo zabo ezihlukile, njengamazinga okushisa aphansi.Njengoba ubuchwepheshe bama-elekthronikhi buvela futhi bufuna okuningi ezingxenyeni zabo, iqhaza le-Carbon Film Resistors kungenzeka ukuthi banwebe, baqinisile ukubaluleka kwabo ekuqinisekiseni ukuqina nokusebenza kwezinhlelo ze-elekthronikhi.Ukuqhubeka kwabo okuqhubekayo kugcizelela ukuvumelana nezimo zabo kanye nenani elikhuthazelayo kunjiniyela kanye nabaqambi bezomkhakha we-elekthronikhi.