Ungawuthola kanjani umnyombo we-high-frequency transformer? Abantu abathenga ingqikithi ye-high-frequency transformer besaba ukuthenga ingqikithi eyenziwe ngezinto ezisezingeni eliphansi. Ngakho kufanele kutholwe kanjani umnyombo? Lokhu kudinga ukuqonda ezinye izindlela zokuthola umnyombo we-ai-high-frequency transformer.
Uma ufuna ukuthola umnyombo we-high-frequency transformer, udinga futhi ukwazi ukuthi yiziphi izinto ezivame ukusetshenziselwa umnyombo. Uma unentshisekelo, ungabheka kukho. Kunezinhlobo eziningi ezahlukenekazibuthe ethambileizinto ezisetshenziselwa ukulinganisa izakhiwo kazibuthe. Ngenxa yokuthi asetshenziswa ngezindlela ezahlukene, kunemingcele eminingi eyinkimbinkimbi edinga ukulinganiswa. Kunezilinganiso eziningi nezindlela ezihlukene zepharamitha ngayinye, okuyingxenye ebaluleke kakhulu yokulinganisa izakhiwo kazibuthe.
Ukukalwa kwezakhiwo kazibuthe ze-DC
Izinto ezihlukile zikazibuthe ezithambile zinezidingo ezihlukile zokuhlola ngokuya ngezinto ezibonakalayo. Ngensimbi ehlanzekile kagesi kanye nensimbi ye-silicon, izinto eziyinhloko ezikalwa yi-amplitude magnetic induction intensity Bm ngaphansi kwamandla kazibuthe ajwayelekile (njenge-B5, B10, B20, B50, B100) kanye namandla kazibuthe aphezulu u-μm namandla okuphoqa i-Hc. Ngomdlalo we-Permalloy kanye ne-amorphous, bakala amandla kazibuthe okuqala u-μi, amandla kazibuthe aphezulu μm, Bs kanye ne-Br; ngenkathi fori-ferrite ethambileizinto zokwakha nazo zikala u-μi ,μm ,B kanye no-Br njll. Ngokusobala uma sizama ukukala le mingcele ngaphansi kwezimo zesekhethi evaliwe singalawula ukuthi sizisebenzisa kahle kangakanani lezi zinto (ezinye izinto ezisetshenziswayo zihlolwa ngendlela ye-open-circuit). Izindlela ezivame kakhulu zihlanganisa:
(A) Indlela yomphumela:
Ngensimbi ye-silicon, kusetshenziswa izindandatho zesikwele ze-Epstein, izinduku zensimbi ezimsulwa, izinto ezibuthakathaka zikazibuthe kanye nemicu ye-amorphous ingahlolwa ngama-solenoid, namanye amasampula angacutshungulwa abe izindandatho kazibuthe ezivaliwe zingahlolwa. Amasampula okuhlola adingeka ukuthi akhishwe uzibuthe ngokuqinile ukuze abe esimweni esimaphakathi. Ugesi oshintshiwe we-DC kanye ne-galvanometer enomthelela kusetshenziswa ukurekhoda indawo ngayinye yokuhlola. Ngokubala nokudweba i-Bi ne-Hi ephepheni lokuxhumanisa, imingcele yempahla kazibuthe ehambisanayo iyatholakala. Isetshenziswe kabanzi ngaphambi kweminyaka yawo-1990. Amathuluzi akhiqizwayo yilawa: CC1, CC2 kanye neCC4. Lolu hlobo lwensimbi lunendlela yokuhlola yakudala, isivivinyo esizinzile nesithembekile, intengo yensimbi eshibhile, kanye nokugcinwa kalula. Ububi buwukuthi: izidingo zabahloli ziphakeme kakhulu, umsebenzi wokuhlola iphuzu nephuzu unzima impela, isivinini siyanensa, futhi iphutha lesikhathi esingaleso sikhathi lama-pulses kunzima ukulinqoba.
(B) Indlela yemitha yokuphoqelela:
Kuyindlela yokulinganisa eklanyelwe ngokukhethekile izinduku zensimbi ezihlanzekile, ezikala kuphela ipharamitha ye-Hcj yezinto. Idolobha elihlolayo liqale ligcwalise isampula bese lihlehlisa indawo kazibuthe. Ngaphansi kwendawo ethile kazibuthe, ikhoyili ekhonjiwe noma isampuli ikhishwa ku-solenoid. Uma i-galvanometer yomthelela wangaphandle ngalesi sikhathi ingenakho ukuchezuka, inkambu kazibuthe ehambisanayo ehambisanayo yi-Hcj yesampula. Le ndlela yokulinganisa ingakala i-Hcj yezinto kahle kakhulu, ngokutshalwa kwempahla encane, okusebenzayo, futhi azikho izidingo zomumo wento.
(C) Indlela yensimbi ye-DC hysteresis loop:
Umgomo wokuhlola uyafana nomgomo wokulinganisa we-hysteresis loop yezinto ezisebenza kazibuthe ezingapheli. Ikakhulukazi, imizamo emikhulu idinga ukwenziwa kusididiyeli, esingasebenzisa amafomu ahlukahlukene afana nokuhlanganiswa kwe-inductor ye-photoelectric amplification mutual inductor, ukuhlanganiswa kwe-resistance-capacitance, ukuhlanganiswa kokuguqulwa kwe-Vf kanye nokuhlanganiswa kwesampula ye-electronic. Imishini yasendlini ihlanganisa: CL1, CL6-1, CL13 evela eShanghai Sibiao Factory; imishini yangaphandle ihlanganisa i-Yokogawa 3257, LDJ AMH401, njll. Uma sikhuluma ngokuqhathanisa, izinga lezihlanganisi zakwamanye amazwe liphakeme kakhulu kunelasekhaya, futhi ukunemba kokulawula kwempendulo ye-B-speed nakho kuphezulu kakhulu. Le ndlela inesivinini sokuhlola esisheshayo, imiphumela enembile futhi kulula ukuyisebenzisa. Okubi ukuthi idatha yokuhlola ye-μi ne-μm ayinembile, ngokuvamile idlula ama-20%.
(D) Indlela yomthelela wokulingisa:
Njengamanje iyindlela yokuhlola engcono kakhulu yokuhlola izici ezithambile zikazibuthe ze-DC. Empeleni kuyindlela yokulingisa ikhompuyutha yendlela yomthelela wokwenziwa. Le ndlela yasungulwa ngokuhlanganyela yi-Chinese Academy of Metrology kanye ne-Loudi Institute of Electronics ngo-1990. Imikhiqizo ihlanganisa: I-MATS-2000 idivayisi yokulinganisa izinto kazibuthe (ayisebenzi), i-NIM-2000D idivayisi yokulinganisa izinto kazibuthe (i-Metrology Institute) kanye ne-TYU-2000D ethambile kazibuthe. Ithuluzi lokulinganisa elizenzakalelayo le-DC (Tianyu Electronics). Le ndlela yokulinganisa igwema ukuphazamiseka okuphambanayo kwesekethe kumjikelezo wokulinganisa, icindezela ngempumelelo ukukhukhuleka kwephoyinti elinguziro lesihlanganisi, futhi inomsebenzi wokuhlola wokuskena.
Izindlela zokulinganisa zezici ze-AC zezinto ezithambile zikazibuthe
Izindlela zokulinganisa izihibe ze-AC hysteresis zifaka indlela ye-oscilloscope, indlela ye-ferromagnetometer, indlela yesampula, indlela yokugcina i-waveform yesikhashana kanye nendlela yokuhlola izici ze-AC ezilawulwa yikhompyutha. Njengamanje, izindlela zokulinganisa izihibe ze-AC hysteresis e-China ikakhulukazi: indlela ye-oscilloscope kanye nendlela yokuhlola izici ze-AC ezilawulwa ngekhompyutha. Izinkampani ezisebenzisa indlela ye-oscilloscope ikakhulukazi zifaka: Dajie Ande, Yanqin Nano kanye noZhuhai Gerun; izinkampani ezisebenzisa indlela yokuhlola izici ze-AC ezilawulwa ngekhompuyutha zifaka phakathi: I-China Institute of Metrology kanye ne-Tianyu Electronics.
(A) Indlela ye-Oscilloscope:
Imvamisa yokuhlola ingu-20Hz-1MHz, imvamisa yokusebenza ibanzi, okokusebenza kulula futhi ukusebenza kulula. Nokho, ukunemba kokuhlolwa kuphansi. Indlela yokuhlola iwukusebenzisa i-resistor engeyona inductive ukuze isampula yamanje eyinhloko futhi ixhume esiteshini esingu-X se-oscilloscope, futhi isiteshi sika-Y sixhunywe kusignali kagesi yesibili ngemva kokuhlanganiswa kwe-RC noma ukuhlanganiswa kweMiller. Ijika le-BH lingabonwa ngokuqondile ku-oscilloscope. Le ndlela ifaneleka ukulinganisa okuqhathaniswayo kwento efanayo, futhi isivinini sokuhlola siyashesha, kodwa asikwazi ukulinganisa ngokunembile amapharamitha wesici kazibuthe wento. Ukwengeza, njengoba i-induction engaguquki kanye ne-saturation magnetic induction ingalawulwa, imingcele ehambisanayo ku-BH curve ayikwazi ukumela idatha yangempela yento futhi ingasetshenziselwa ukuqhathanisa.
(B) Indlela yensimbi ye-Ferromagnetic:
Indlela yensimbi ye-ferromagnetic ibizwa nangokuthi indlela yemitha ye-vector, njengethuluzi lokulinganisa lohlobo lwe-CL2 yasekhaya. Imvamisa yokulinganisa ingu-45Hz-1000Hz. Imishini inesakhiwo esilula futhi kulula ukuyisebenzisa, kodwa ingaqopha kuphela amajika okuhlola avamile. Isimiso sokuklama sisebenzisa ukulungisa okuzwelayo kwesigaba ukukala inani elisheshayo le-voltage noma yamanje, kanye nesigaba salokhu okubili, futhi isebenzisa isiqophi ukuze ibonise ijika le-BH lento. Bt=U2au/4f*N2*S, Ht=Umax/l*f*M, lapho u-M eyi-mutual inductance.
(C) Indlela yesampula:
Indlela yesampula isebenzisa isekethe yokuguqulwa kwesampula ukuze iguqule isignali kagesi eshintshayo enesivinini esikhulu ibe isignali kagesi enesimo segagasi esifanayo kodwa ijubane elishintshayo elihamba kancane, futhi isebenzisa i-AD enesivinini esiphansi ukuze kwenziwe isampula. Idatha yokuhlola inembile, kodwa imvamisa yokuhlola ifika ku-20kHz, okunzima ukuzivumelanisa nesilinganiso esiphezulu sefrikhwensi yezinto ezisetshenziswa kazibuthe.
(D) Indlela yokuhlola izici ze-AC uzibuthe:
Le ndlela iyindlela yokulinganisa eklanywe ngokuwasebenzisa ngokugcwele amandla okulawula kanye nokucubungula isofthiwe yamakhompyutha, futhi iyisiqondiso esibalulekile sokuthuthukiswa komkhiqizo wesikhathi esizayo. Idizayini isebenzisa amakhompuyutha nama-sample loops ukulawula iluphu evaliwe, ukuze ukulinganisa konke kwenziwe ngokuthanda kwakho. Uma izimo zokulinganisa sezifakiwe, inqubo yokulinganisa iqedwa ngokuzenzakalelayo futhi ukulawula kungenziwa ngokuzenzakalelayo. Umsebenzi wokulinganisa nawo unamandla kakhulu, futhi ungacishe uzuze ukulinganiswa okunembile kwawo wonke amapharamitha wezinto ezithambile zikazibuthe.
I-athikili idluliselwa kusuka ku-inthanethi. Inhloso yokudlulisa iwukuba wonke umuntu akwazi ukuxhumana futhi afunde kangcono.
Isikhathi sokuthumela: Aug-23-2024