Momwe mungadziwire pachimake cha transformer yothamanga kwambiri? Anthu omwe amagula pachimake cha transformer yapamwamba kwambiri amawopa kugula maziko opangidwa ndi zipangizo zotsika. Ndiye kodi core iyenera kuzindikirika bwanji? Izi zimafuna kumvetsetsa njira zina zozindikirira pachimake cha athiransifoma yapamwamba kwambiri.
Ngati mukufuna kudziwa pachimake cha transformer yapamwamba kwambiri, muyeneranso kudziwa zomwe zimagwiritsidwa ntchito kwambiri pachimake. Ngati mukufuna, mutha kuyang'ananso. Pali mitundu yambiri yosiyanasiyanazofewa maginitozinthu zomwe zimagwiritsidwa ntchito poyeza maginito. Chifukwa chakuti amagwiritsidwa ntchito m'njira zosiyanasiyana, pali zovuta zambiri zomwe ziyenera kuyesedwa. Pali miyeso ndi njira zosiyanasiyana pagawo lililonse, lomwe ndi gawo lofunikira kwambiri pakuyezera maginito.
Kuyeza kwa DC maginito katundu
Zida zofewa zofewa za maginito zimakhala ndi zofunikira zosiyanasiyana zoyesera kutengera zinthu. Kwa chitsulo choyera chamagetsi ndi chitsulo cha silicon, zinthu zazikuluzikulu zomwe zimayezedwa ndi matalikidwe a maginito ochititsa chidwi kwambiri Bm pansi pa mphamvu ya maginito (monga B5, B10, B20, B50, B100) komanso kupitirira kwa maginito μm ndi mphamvu yokakamiza Hc. Kwa machesi a Permalloy ndi amorphous, amayezera kuthekera kwa maginito μi, kukwanira kwa maginito μm, Bs ndi Br; pamene kwaferrite yofewazipangizo amayezeranso μi ,μm ,Bs ndi Br ndi zina zotero. Mwachiwonekere ngati tiyesa kuyesa magawowa pansi pa malo otsekedwa tikhoza kulamulira momwe timagwiritsira ntchito zipangizozi (zida zina zimayesedwa ndi njira yotseguka). Njira zodziwika bwino ndi izi:
(A) Njira Yothandizira:
Kwa chitsulo cha silicon, mphete za Epstein zazikulu zimagwiritsidwa ntchito, ndodo zachitsulo zoyera, zida zofooka za maginito ndi zingwe za amorphous zimatha kuyesedwa ndi solenoids, ndi zitsanzo zina zomwe zingathe kusinthidwa kukhala mphete za maginito zotsekedwa zimatha kuyesedwa. Zitsanzo zoyeserera zimafunika kuti zisakhale ndi maginito osalowerera ndale. Magetsi osinthidwa a DC ndi galvanometer yamphamvu amagwiritsidwa ntchito kujambula poyeserera. Powerengera ndi kujambula Bi ndi Hi pamapepala ogwirizanitsa, magawo a maginito a katundu amapezedwa. Zakhala zikugwiritsidwa ntchito kwambiri zaka za m'ma 1990 zisanafike. Zida zopangidwa ndi: CC1, CC2 ndi CC4. Chida chamtunduwu chili ndi njira yoyeserera yachikale, mayeso okhazikika komanso odalirika, mtengo wa zida zotsika mtengo, komanso kukonza kosavuta. Zoyipa zake ndi izi: zomwe zimafunikira kwa oyesa ndizokwera kwambiri, ntchito yoyesera mfundo ndizovuta kwambiri, liwiro limakhala pang'onopang'ono, ndipo cholakwika chanthawi yomweyo cha ma pulses ndizovuta kuthana nazo.
(B) Njira ya mita yokakamiza:
Ndi njira yoyezera yomwe imapangidwira ndodo zachitsulo zoyera, zomwe zimangoyesa gawo la Hcj lazinthuzo. Mzinda woyeserera umayamba wadzaza zitsanzo kenako ndikusintha mphamvu ya maginito. Pansi pa mphamvu ya maginito, koyilo yoponyedwa kapena zitsanzo zimakokedwa kuchoka ku solenoid. Ngati mphamvu yakunja ya galvanometer pakadali pano ilibe kupatuka, gawo lofananirako la maginito ndilo Hcj yachitsanzo. Njira yoyezera iyi imatha kuyeza Hcj yazinthuzo bwino kwambiri, ndi ndalama zazing'ono za zida, zothandiza, ndipo palibe zofunikira pa mawonekedwe azinthuzo.
(C) DC hysteresis loop chida njira:
Mfundo yoyesera ndi yofanana ndi mfundo yoyezera ya hysteresis loop ya maginito okhazikika. Makamaka, kuyesetsa kwakukulu kuyenera kuchitidwa mu chophatikizira, chomwe chingatenge mitundu yosiyanasiyana monga photoelectric amplification mutual inductor integration, resistance-capacitance integration, Vf conversion integration and electronic sampling integration. Zida zapakhomo zikuphatikizapo: CL1, CL6-1, CL13 kuchokera ku Shanghai Sibiao Factory; zida zakunja zikuphatikizapo Yokogawa 3257, LDJ AMH401, etc. Kunena zoona, mlingo wa ophatikizira akunja ndi wapamwamba kwambiri kuposa wapakhomo, komanso kuwongolera kulondola kwa mayankho a B-liwiro ndipamwamba kwambiri. Njirayi ili ndi liwiro loyesa mwachangu, zotsatira zanzeru komanso zosavuta kugwiritsa ntchito. Choyipa ndichakuti mayeso a μi ndi μm ndi olakwika, nthawi zambiri amapitilira 20%.
(D) Njira yotsatsira:
Pakali pano ndiye njira yabwino kwambiri yoyesera mawonekedwe ofewa a maginito a DC. Kwenikweni ndi njira yofananira ndi makompyuta ya njira yochita kupanga. Njirayi idapangidwa pamodzi ndi Chinese Academy of Metrology ndi Loudi Institute of Electronics mu 1990. Zogulitsa zikuphatikizapo: MATS-2000 maginito kuyeza chipangizo (anasiya), NIM-2000D maginito kuyeza chipangizo (Metrology Institute) ndi TYU-2000D zofewa maginito maginito chipangizo. Chida choyezera chokha cha DC (Tianyu Electronics). Njira yoyezera iyi imapewa kusokonezedwa kwa dera kupita kudera loyezera, imalepheretsa kusuntha kwa cholumikizira zero, komanso imakhala ndi ntchito yoyeserera.
Njira zoyezera za mawonekedwe a AC azinthu zofewa zamaginito
Njira zoyezera malupu a AC hysteresis zikuphatikiza njira ya oscilloscope, njira ya ferromagnetometer, njira yachitsanzo, njira yosungiramo ma waveform osakhalitsa komanso njira yoyeserera ya AC maginito a makompyuta. Pakalipano, njira zoyezera malupu a AC hysteresis ku China makamaka: njira ya oscilloscope ndi njira yoyesera ya AC yoyendetsedwa ndi makompyuta. Makampani omwe amagwiritsa ntchito njira ya oscilloscope makamaka akuphatikizapo: Dajie Ande, Yanqin Nano ndi Zhuhai Gerun; makampani omwe amagwiritsa ntchito makompyuta motsogozedwa ndi maginito a AC magnetization njira yoyesera makamaka akuphatikizapo: China Institute of Metrology ndi Tianyu Electronics.
(A) Njira ya Oscilloscope:
Mafupipafupi oyesa ndi 20Hz-1MHz, ma frequency ogwiritsira ntchito ndi otakata, zida ndi zophweka ndipo ntchitoyo ndiyosavuta. Komabe, kulondola kwa mayeso kuli kochepa. Njira yoyesera ndikugwiritsa ntchito chopinga chopanda inductive kuyesa choyambira ndikuchilumikiza ku njira ya X ya oscilloscope, ndipo njira ya Y imalumikizidwa ndi chizindikiro chachiwiri chamagetsi pambuyo pa kuphatikiza kwa RC kapena kuphatikiza kwa Miller. Mzere wa BH ukhoza kuwonedwa mwachindunji kuchokera ku oscilloscope. Njirayi ndiyoyenera kuyeza kufananiza kwa zinthu zomwezo, ndipo liwiro la mayeso limakhala lachangu, koma silingathe kuyeza molondola magawo azinthu zamaginito. Kuonjezera apo, popeza kuphatikizika kosalekeza ndi machulukitsidwe a maginito kulowetsedwa sikutsekedwa-kutsekedwa, magawo ofananira pa BH curve sangathe kuyimira deta yeniyeni ya zinthuzo ndipo angagwiritsidwe ntchito poyerekeza.
(B) Njira ya chida cha Ferromagnetic:
Njira ya chida cha ferromagnetic imatchedwanso njira ya mita ya vector, monga chida choyezera chamtundu wa CL2. Kuyeza pafupipafupi ndi 45Hz-1000Hz. Zipangizozi zimakhala ndi mawonekedwe osavuta ndipo ndizosavuta kugwiritsa ntchito, koma zimatha kujambula ma curve oyeserera. Mfundo yopangidwira imagwiritsa ntchito kukonzanso kwapang'onopang'ono kuyeza mtengo wamagetsi kapena wamakono, komanso gawo la ziwirizo, ndipo amagwiritsa ntchito chojambulira kuti asonyeze BH curve ya zinthuzo. Bt=U2au/4f*N2*S, Ht=Umax/l*f*M, pomwe M ndiye kugwirizana.
(C) Njira yachitsanzo:
Njira yachitsanzo imagwiritsa ntchito sampuli yosinthira sampuli kuti isinthe mawonekedwe amagetsi othamanga kwambiri kukhala ma voliyumu omwe ali ndi mawonekedwe omwewo koma pang'onopang'ono kusintha liwiro, ndikugwiritsa ntchito liwiro lotsika la AD sampuli. Zomwe zimayesedwa ndizolondola, koma ma frequency oyesera amafika ku 20kHz, zomwe zimakhala zovuta kuzolowera muyeso wapamwamba kwambiri wazinthu zamaginito.
(D) AC magnetization makhalidwe njira yoyesera:
Njirayi ndi njira yoyezera yomwe idapangidwa pogwiritsa ntchito mphamvu zonse zowongolera ndi kukonza mapulogalamu pamakompyuta, komanso ndi njira yofunikira pakukula kwazinthu zamtsogolo. Kapangidwe kameneka kamagwiritsa ntchito makompyuta ndi zingwe zoyeserera kuti ziwongolere zotsekeka, kuti muyeso wonse uchitike mwakufuna kwake. Miyezo ikalowa, njira yoyezera imamalizidwa yokha ndipo kuwongolera kumatha kukhala kokha. Ntchito yoyezera imakhalanso yamphamvu kwambiri, ndipo imatha kukwanitsa kuyeza kolondola kwazinthu zonse zofewa za maginito.
Nkhaniyi imatumizidwa kuchokera pa intaneti. Cholinga cha kutumiza ndi kuthandiza aliyense kuti azilankhulana bwino ndi kuphunzira.
Nthawi yotumiza: Aug-23-2024