核磁共振波谱仪探头电路剖析与研制  

THE ANALYSIS AND PREPARATION OF THE PROBE’S CIRCUIT OF NMS SEPECTOMETER

作　　者：周志仁[1] 

机构地区：[1]湘潭大学资产处

出　　处：《湘潭大学自然科学学报》1999年第2期87-89,共3页Natural Science Journal of Xiangtan University

摘　　要：对核磁共振波谱仪所用的双调谐共用线圈探头进行系统电路分析，并推导出设计制作的理论公式，根据公式设计制作了傅立叶变换波谱仪的高质探头电路，用在ＣＨ４００型核磁共振仪上，灵敏度性能达到５０∶１，在５ｍｍ氢探头和１％甲苯，对５０％的乙醛可达到５．Through the analysis of systematic circuit of doubletuned commonuse coil probehead used in NMR spectrometer, a theorectic formula was obtained, according to which, one highquality probehead circuit of Fourier Transformation spectrometer is designed and used in Model CH400 NMR spectrometer, the sensitivity of which reaches 50∶1,the resolution factor of which, with 5 mm H probehead and 1% toluene and 50 ethanal, can reach 5.24×10 -9 .

关 键 词：核磁共振波谱仪 双调谐单线圈 探头 电路分析 

分 类 号：TH834[机械工程—仪器科学与技术]