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目前国内外的飞行时间质谱计，大多采用双电场加速的方式改善其质谱分辨率。通过较详尽的计算，讨论了双电场飞行时间质谱计中各参数对质谱分辨率和灵敏度的影响及其选择的方向，并在此基础上选定了仪器的主要参量，为飞行时间质谱计的设计与改进提供了依据。还介绍了在此基础上设计与建立的脉冲激光离子源飞行时间质谱计。
At present, time of flight mass spectrometer at home and abroad mostly adopts the method of double electric field acceleration to improve its mass spectral resolution. Through detailed calculation, the influence of each parameter on the resolution and sensitivity of dual-field time-of-flight mass spectrometer and the direction of its selection are discussed. On the basis of this, the main parameters of the instrument are selected and used for time of flight mass spectrometry Provide a basis for design and improvement. The pulsed laser ion source time-of-flight mass spectrometer designed and built on this basis is also introduced.