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一、引言核四极共振(NQR)温度计利用氯酸钾(KClO_3)晶体中的 Cl~(35)核四极共振吸收频率与温度的关系特性,它具有很高的分辨率和固有的良好复现性。从原理上讲,根据温度敏感元件材料的分子特性,其温度-频率关
I. INTRODUCTION The nuclear quadrupole resonance (NQR) thermometer utilizes the characteristic of the relationship between the temperature and the quadrupole resonance absorption of Cl ~ (35) nuclei in potassium chlorate (KClO_3) crystals. It has high resolution and inherent good reproducibility . In principle, the temperature-dependent frequency depends on the molecular properties of the temperature sensitive element material