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I-Low-frequency Electromagnetic Field Active Shielding

Incazelo emfushane:

Isistimu ye-MRI iyithuluzi lokuxilonga lokunemba okuphezulu, elinezidingo eziphezulu zendawo yokufaka. Isignali ye-NMR iyisiginali ebuthakathaka kakhulu, esengozini yokuphazamiseka kwangaphandle. Ngenxa yalokho, amasistimu e-MRI ngokuvamile adinga ukuhlonyiswa ngamakheji e-Faraday (amagumbi okuvikela) ukuze ahlukanise ukuphazamiseka kwe-RF yangaphandle ekungeneni ohlelweni. Kodwa-ke, ikheji ye-Faraday inokuncisha kangcono ibhendi yefrikhwensi yomsakazo, futhi umphumela wokuvikela ifrikhwensi ephansi ulinganiselwe. Ikakhulukazi ukufakwa kwezinhlelo ze-MRI eduze kwemizila ehamba ngaphansi, izitimela, ama-transformer amakhulu, ama-lifti, izintambo zokudlulisa amandla, njll. Akumele kulungiswe ikheji ye-Faraday kuphela, kodwa futhi nohlelo lokuvikela olusebenzayo kufanele lumiswe ukuze kwenziwe uhlelo lwe-MRI luhlangabezane nezidingo zokuxilonga. .


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Isingeniso Somkhiqizo

Isistimu ye-MRI iyithuluzi lokuxilonga lokunemba okuphezulu, elinezidingo eziphezulu zendawo yokufaka. Isignali ye-NMR iyisiginali ebuthakathaka kakhulu, esengozini yokuphazamiseka kwangaphandle. Ngenxa yalokho, amasistimu e-MRI ngokuvamile adinga ukuhlonyiswa ngamakheji e-Faraday (amagumbi okuvikela) ukuze ahlukanise ukuphazamiseka kwe-RF yangaphandle ekungeneni ohlelweni. Kodwa-ke, ikheji ye-Faraday inokuncisha kangcono ibhendi yefrikhwensi yomsakazo, futhi umphumela wokuvikela ifrikhwensi ephansi ulinganiselwe. Ikakhulukazi ukufakwa kwezinhlelo ze-MRI eduze kwemizila ehamba ngaphansi, izitimela, ama-transformer amakhulu, ama-lifti, izintambo zokudlulisa amandla, njll. Akumele kulungiswe ikheji ye-Faraday kuphela, kodwa futhi nohlelo lokuvikela olusebenzayo kufanele lumiswe ukuze kwenziwe uhlelo lwe-MRI luhlangabezane nezidingo zokuxilonga. .

I-CSJ-ASH iwuhlelo olusebenza kahle olusebenza ngogesi olusebenza ngokusezingeni eliphezulu olusebenza ngogesi olwakhiwe yi-Ningbo Chuanshan Jia Electromechanical Co., Ltd. Ingakwazi ukuvikela ngempumelelo izinkambu zikagesi ze-DC, amasimu kagesi angu-50Hz/60Hz amafrikhwensi kagesi abangelwa imizila engaphansi, izitimela, amathilamu, izintambo zokudlulisela, okokusebenza kwe-transformer, amakheshi, njll. I-CSJ-ASH iqukethe izinto ezintathu ezinkulu izingxenye: i-fluxgate yokunemba okuphezulu kwe-probe, umsingathi, kanye nekhoyili evikelayo. I-fluxgate probe enembe kakhulu ingakwazi ukuzwa ukuphazamiseka kwenkundla kagesi kagesi, futhi ikhiqize isignali kagesi ehambisanayo ukuze idluliselwe kumsingathi. Ngemva kokucubungula, umsingathi ukhipha igagasi elibuyela emuva elilandela ngesikhathi sangempela, futhi lamanje likhiqiza inkambu kazibuthe ehlehlayo kukhoyili evikelayo ukuze ikhansele inkambu kazibuthe, ngaleyo ndlela ibona ukuvikela okusebenzayo kwezinkambu kazibuthe ze-low-frequency.

Amapharamitha womkhiqizo

1, Ibanga lesinxephezelo esinamandla: 200μT

2, Ukulungiswa kwenkambu kaMazibuthe: 10 nT

3, Ibanga leFrequency: 0-1000 Hz

4, Ithagethi yesinxephezelo senkambu kazibuthe: <300nT

5, Izidingo zamandla:100/240 VAC 50/60 Hz

6, izinga lokushisa lomswakama: 10°C ~ 40°C, 10%~ 90%

 


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