摘要
为了解决基于可调谐二极管激光光谱吸收(TDLAS)技术的乙炔气体浓度监测系统的小型化、实时现场监控难的问题,采用了带MMU的ARM9处理器S3C2410。实现了乙炔气体浓度数据采集和数据处理的实时现场监控系统的设计。系统中,采用了激光的波长调制和乙炔气体的光谱吸收特性。实验结果表明,整个监控系统不仅实现了小型化设计,而且实现了智能化和实时监控,非常适合现场监控,乙炔气体浓度的测量精度可以达到10-6量级。
In order to realize miniaturization and ease in-situ operation of the C2H2 gas concentration monitoring system based on TDLAS （tunable diode laser absorption spectroscopy） technology, the real-time system is designed by adopting AMR9 processor S3C2410 with MMU. Data acquisition and data processing for C2H2 gas concentration are implemented by the system in real time. In the system, wavelength modulation technology and spectrum absorption characteristics of C2H2 are used. The result of experiments indicates that the miniaturization design of the system is implemented ; and intelligent and real-time monitoring are also realized ; the system is suitable for in-situ monitoring with measurement aecuracy up to 10^-6.
出处
《自动化仪表》
CAS
2008年第8期8-11,共4页
Process Automation Instrumentation
