Indlela yokubona ingundoqo ye-high-frequency transformer? Abantu abathenga ingundoqo ye-high-frequency transformer bayesaba ukuthenga i-core eyenziwe ngezinto eziphantsi. Ngoko kufuneka kubonwe njani undoqo? Oku kufuna ukuqonda ezinye iindlela zokubona undoqo wei-high-frequency transformer.
Ukuba ufuna ukufumanisa ingundoqo ye-high-frequency transformer, kufuneka kwakhona ukwazi ukuba zeziphi izinto ezisetyenziswa ngokuqhelekileyo kwi-core. Ukuba unomdla, ungajonga kuyo. Kukho iintlobo ezininzi ezahlukeneyoimagnethi ethambileyoizinto ezisetyenziselwa ukulinganisa iimpawu zemagnethi. Ngenxa yokuba zisetyenziswa ngeendlela ezahlukeneyo, zininzi iiparamitha ezintsonkothileyo ezifuna ukulinganiswa. Kukho imilinganiselo emininzi eyahlukeneyo kunye neendlela zeparameter nganye, eyona nxalenye ibalulekileyo yokulinganisa iimpawu zemagnethi.
Umlinganiselo weempawu zemagneti zeDC
Izinto ezahlukeneyo zemagnethi ezithambileyo zineemfuno ezahlukeneyo zovavanyo ngokuxhomekeke kwizinto eziphathekayo. Kwintsimbi esulungekileyo yombane kunye nentsimbi yesilicon, ezona zinto zilinganisiweyo yi-amplitude magnetic induction intensity Bm phantsi kwamandla ombane aqhelekileyo wemagnethi (njenge-B5, B10, B20, B50, B100) kunye nobona buninzi bemagnetic permeability μm kunye nokunyanzeliswa kwamandla Hc. Ngomdlalo wePermalloy kunye ne-amorphous, balinganisa ukufikeleleka kwemagnethi yokuqala μi, ubuninzi bemagnetic permeability μm, B kunye neBr; ngeli xeshai-ferrite ethambileyoizixhobo nazo zilinganisa u-μi, μm, B kunye no-Br njalo njalo. Ngokucacileyo ukuba sizama ukulinganisa ezi parameters phantsi kweemeko zesekethe evaliweyo sinokulawula indlela esizisebenzisa ngayo ezi mathiriyeli (ezinye imathiriyeli zivavanywa ngendlela yesekethe evulekileyo). Ezona ndlela zixhaphakileyo ziquka:
(A) Indlela yempembelelo:
Kwinsimbi ye-silicon, i-Epstein i-square rings isetyenzisiweyo, i-rods yentsimbi ecocekileyo, izinto ezibuthathaka zamagnetic kunye nemichilo ye-amorphous inokuvavanywa nge-solenoids, kunye nezinye iisampuli ezinokucutshungulwa zibe yizangqa zemagnethi ezivaliweyo zinokuvavanywa. Iisampulu zovavanyo ziyafuneka ukuba zikhutshelwe ngokungqongqo kwimo engathathi hlangothi. Unikezelo lwamandla lwe-DC olutshintshiweyo kunye ne-galvanometer yempembelelo zisetyenziselwa ukurekhoda indawo nganye yovavanyo. Ngokubala kunye nokudweba i-Bi kunye ne-Hi kwiphepha lokulungelelanisa, iiparamitha zepropathi ezihambelanayo zifunyenwe. Isetyenziswe ngokubanzi ngaphambi kweminyaka yee-1990. Izixhobo eziveliswayo zezi: CC1, CC2 kunye neCC4. Olu hlobo lwesixhobo lunendlela yovavanyo lwakudala, uvavanyo oluzinzileyo noluthembekileyo, ixabiso lesixhobo esincinci, kunye nokugcinwa lula. Izinto ezingeloncedo zezi: iimfuno zabavavanyi ziphezulu kakhulu, umsebenzi wovavanyo lwamanqaku nenqaku unzima kakhulu, isantya siyacotha, kwaye impazamo yexesha elingeyonyani lemibhobho kunzima ukoyisa.
(B) Indlela yemitha yokunyanzeliswa:
Yindlela yokulinganisa eyenzelwe ngokukodwa iintonga zentsimbi ezicocekileyo, ezilinganisa kuphela ipharamitha ye-Hcj yezinto. Isixeko esivavanyayo kuqala sizalise isampuli kwaye emva koko sibuyisele umva umhlaba wemagnethi. Ngaphantsi kwendawo ethile yamagnetic, ikhoyili okanye isampuli itsalwa kude ne-solenoid. Ukuba i-galvanometer yempembelelo yangaphandle ngeli xesha ayinakho ukuphambuka, i-reverse field magnetic yi-Hcj yesampuli. Le ndlela yokulinganisa inokulinganisa i-Hcj yezinto kakuhle kakhulu, kunye notyalo-mali oluncinci lwezixhobo, olusebenzayo, kwaye akukho mfuneko yokuma kwezinto.
(C) Indlela yesixhobo se-DC hysteresis loop:
Umgaqo wokuvavanya uyafana nomgaqo wokulinganisa we-hysteresis loop yezinto ezisisigxina zamagnetic. Ubukhulu becala, iinzame ezinkulu kufuneka zenziwe kumdibanisi, ezinokuthatha iifom ezahlukeneyo ezifana ne-photoelectric amplification mutual inductor integration, ukuhlanganiswa kwe-resistance-capacitance, ukuhlanganiswa kwe-Vf yokuguqulwa kunye nokuhlanganiswa kweesampuli ze-elektroniki. Izixhobo zasekhaya ziquka: CL1, CL6-1, CL13 ukusuka Shanghai Sibiao Factory; izixhobo zangaphandle ziquka Yokogawa 3257, LDJ AMH401, njl. Ukuthetha ngokuthelekisayo, inqanaba lokudibanisa angaphandle liphezulu kakhulu kunaleyo yasekhaya, kunye nokuchaneka kolawulo lwempendulo B-speed nayo iphezulu kakhulu. Le ndlela inesantya sovavanyo olukhawulezayo, iziphumo ezicacileyo kwaye kulula ukuyisebenzisa. Ukungalungi kukuba idatha yovavanyo lwe-μi kunye ne-μm ayichanekanga, ngokubanzi idlula i-20%.
(D) Indlela yempembelelo yokulinganisa:
Okwangoku yeyona ndlela yovavanyo yokuvavanya iimpawu ze-DC ezithambileyo. Eyona nto iyindlela yokulinganisa ikhompyuter yendlela yempembelelo eyenziweyo. Le ndlela yaphuhliswa ngokudibeneyo yi-Academy yaseTshayina yeMetrology kunye neLoudi Institute of Electronics ngo-1990. Iimveliso ziquka: i-MATS-2000 isixhobo sokulinganisa izinto ezinobuchwephesha (ayekiwe), i-NIM-2000D isixhobo sokulinganisa izinto ezinobuchwephesha (iMetrology Institute) kunye ne-TYU-2000D Isixhobo sokulinganisa esizenzekelayo se-DC (Tianyu Electronics). Le ndlela yokulinganisa inqanda ukuphazamiseka kwesiphambano kwisekethe yokulinganisa, icinezela ngokufanelekileyo i-drift ye-integrator zero point, kwaye inomsebenzi wokuvavanya ukuskena.
Iindlela zokulinganisa iimpawu ze-AC zemathiriyeli yamagnetic ethambileyo
Iindlela zokulinganisa iilophu ze-AC hysteresis ziquka indlela ye-oscilloscope, indlela ye-ferromagnetometer, indlela yesampulu, indlela yokugcina amaza okwexeshana kunye nendlela yokuvavanya iimpawu ze-AC ezilawulwa yikhompyutha. Okwangoku, iindlela zokulinganisa i-AC hysteresis loops e-China ikakhulu: indlela ye-oscilloscope kunye nendlela yokuvavanya iimpawu ze-AC ezilawulwa yikhompyutha. Iinkampani ezisebenzisa indlela ye-oscilloscope ikakhulu ziquka: uDajie Ande, uYanqin Nano kunye noZhuhai Gerun; iinkampani ezisebenzisa indlela yokuvavanya iimpawu zemagneti ze-AC ezilawulwa yikhompyutha ikakhulu ziquka: Iziko laseTshayina leMetrology kunye neTianyu Electronics.
(A) Indlela yeOscilloscope:
I-frequency yokuvavanya i-20Hz-1MHz, i-frequency yokusebenza ibanzi, izixhobo zilula kwaye ukusebenza kulula. Nangona kunjalo, ukuchaneka kovavanyo kuphantsi. Indlela yokuvavanya kukusebenzisa i-resistor non-inductive ukusampula i-primary current kwaye idibanise kwi-channel ye-X ye-oscilloscope, kwaye i-Y channel ixhunyiwe kwi-signal voltage yesibini emva kokuhlanganiswa kwe-RC okanye ukuhlanganiswa kwe-Miller. Ijika leBH linokujongwa ngokuthe ngqo kwi-oscilloscope. Le ndlela ifanelekile ukulinganisa ukulinganisa kwezinto ezifanayo, kwaye isantya sokuvavanya sikhawuleza, kodwa asikwazi ukulinganisa ngokuchanekileyo iiparamitha zempawu zemagneti zezinto. Ukongezelela, ekubeni i-induction edibeneyo kunye ne-saturation magnetic induction ayilawulwa-i-loop evaliweyo, iiparitha ezihambelanayo kwi-curve ye-BH ayikwazi ukumela idatha yangempela yezinto eziphathekayo kwaye ingasetyenziselwa ukuthelekisa.
(B) Indlela yesixhobo se-Ferromagnetic:
Indlela yesixhobo se-ferromagnetic ikwabizwa ngokuba yindlela yemitha yevektha, njengesixhobo sokulinganisa sohlobo lwe-CL2 yasekhaya. Isantya sokulinganisa yi-45Hz-1000Hz. Isixhobo sinesakhiwo esilula kwaye kulula ukusebenza, kodwa sinokurekhoda kuphela ii-curves zovavanyo eziqhelekileyo. Umgaqo woyilo usebenzisa ukulungiswa kwesigaba-sensitive ukulinganisa ixabiso elikhawulezayo lombane okanye langoku, kunye nesigaba sesibini, kwaye usebenzisa irekhoda ukubonisa i-BH curve yezinto. I-Bt=U2au/4f*N2*S, Ht=Umax/l*f*M, apho i-M ihambelanayo.
(C) Indlela yesampulu:
Indlela yesampulu isebenzisa i-sampling conversion circuit ukuguqula i-high-speed change voltage signal ibe yi-voltage signal ene-wave wave kodwa isantya esicothayo sokutshintsha, kwaye isebenzisa i-AD ye-low-speed ye-sampling. Idatha yovavanyo ichanekile, kodwa amaxesha ovavanyo ukuya kuthi ga kwi-20kHz, ekunzima ukuziqhelanisa nomlinganiselo ophezulu wefrikhwensi yemathiriyeli kazibuthe.
(D) Indlela yokuvavanya imagnethi ye-AC:
Le ndlela yindlela yokulinganisa eyilwe ngokusetyenziswa ngokupheleleyo kolawulo kunye nezakhono zokusetyenzwa kwesoftware yeekhompyuter, kwaye ikwalisikhokelo esibalulekileyo sophuhliso lwemveliso yexesha elizayo. Uyilo lusebenzisa iikhomputha kunye neesampulu zesampulu zokulawula i-loop evaliweyo, ukwenzela ukuba umlinganiselo wonke wenziwe ngokuthanda. Emva kokuba iimeko zokulinganisa zifakwe, inkqubo yokulinganisa igqitywe ngokuzenzekelayo kwaye ulawulo luyakwazi ukuzenzekelayo. Umsebenzi wokulinganisa unamandla kakhulu, kwaye unokufikelela kumlinganiselo ochanekileyo wazo zonke iiparamitha zemathiriyeli yemagnethi ethambileyo.
Inqaku lithunyelwa ukusuka kwi-Intanethi. Injongo yokudlulisela phambili kukwenza wonke umntu anxibelelane ngcono kwaye afunde.
Ixesha lokuposa: Aug-23-2024