激光质谱系统中激光波长高实时集中控制研究与应用

The development and application of the laser wave control system for laser mass spectrometry systems

摘要:

随着激光共振电离质谱系统的迅速发展,更准确地研究激光波长与电离质谱信号的关系,实现激光波长与电离质谱信号的自动对比,开展了激光波长高实时集中控制的研究。采用数据库技术、多线程技术和RS485通讯技术等完成了激光波长的高实时控制的研制工作。该系统实现了对激光波长的闭环和各种方式的扫描控制及运行状态的实时监测功能,能够以外触发方式与质谱系统进行同步,满足了激光质谱系统对波长的大范围、小范围及精细扫描的需求,实现了波长单步扫描数据响应时间小于250ms。

Abstract:

With the development of laser mass spectrometry systems, it is demanded that the running state is controled real-time and operated. The laser control system has become an urgent need for the laser system in order to study the relationship between the laser wavelength and mass spectrometry signal, automatic contrasted laser wavelength with mass spectrometry signal. The laser control system was developed with database technology, serial communications technology, Ethernet communication technology. The laser control system has completed the data acquisition and automatic control of local and remote for the running status of laser system. The laser system can synchronize with MS system by trigger outside to meet the needs of laser mass spectrometry system for a wide range of wavelengths, small-scale and fine scan.