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专利名称：Method of measurement and adjustment
from gradients in a nuclear magneticresonance apparatus and the correspondingdevice
发明人：ZWIEBEL, RENE,FRITZ, REMY申请号：EP93440076.3申请日：19930916公开号：EP04434A1公开日：19950322
专利附图：
摘要：The subject of the present invention is a method of measuring and adjusting thegradients of an NMR apparatus and the corresponding device. Method characterised inthat it consists, essentially, in selectively putting in place a set of analysis samples or inselecting such samples already installed at the places where the action of the correctioncoil (Bi) to be adjusted of the corresponding ferromagnetic piece, for a given field
gradient is, on the one hand, predominant and, on the other hand, symmetric and/oropposite, in selectively feeding the said correction coil (Bi) to be adjusted, as well as, ifappropriate, the already adjusted correction coils, in sampling the NMR signal from thesaid analysis samples, in visually displaying the said signal, after conversion, into thefrequency field, in setting the feed current of the correction coil (Bi) to be adjusted, byobserving, in real time, the change in the frequency spectrum of the NMR signal from thesaid analysis samples, until a configuration of the spectrum is obtained corresponding tocomplete compensation of the gradient influenced and, finally, in performing theseoperations for all of the correction coils, in a predetermined order.
申请人：SADIS BRUKER SPECTROSPIN, SOCIETE ANONYME DE DIFFUSION DEL'INSTRUMENTATION SCIENTIFIQUE BRUKER SPECTROSPIN
地址：34, rue de l'Industrie F-67160 Wissembourg FR
国籍：FR
代理机构：Nuss, Pierre
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