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本文介绍了利用飞行时间质谱仪 (TOFMS)对发动机发动过程中的排气成分进行动态检测的方法以及为此开发的高速数据采集系统。该数据系统实现了对发动机排放进行快速质谱分析所需的实时信号采集、处理和谱图显示。
In this paper, the method of dynamic detection of exhaust gas composition during the engine start-up by using TOFMS and the high-speed data acquisition system developed for this are introduced. The data system enables real-time signal acquisition, processing and spectrogram display required for rapid mass spectrometry of engine emissions.