设计并研制了一台普及型核磁共振波谱仪,谱仪具有观察大调制信号,检测宽线谱和显示化学位移等多种功能。探头采用自差式振荡检波器,因而使谱仪结构简化,维修和操作方便。本文阐述了谱仪的结构原理和整机性能,介绍了主要电路和谱仪的调整方法,并给出了初步的测量结果。 A universal nuclear magnetic resonance spectrometer was designed and developed. The spectrometer has many functions such as observation of large modulated signal, detection of broad spectrum and display of chemical shift. Probe using self-oscillation oscillator, so that the spectrometer structure is simplified, easy maintenance and operation. This article describes the structure of the spectrometer principle and the whole machine performance, introduces the main circuit and spectrometer adjustment method, and gives the initial measurement results.