准连续调制激光吸收谱测量CO气体系统研究

发布时间：2018-07-01 12:24

本文选题：准连续信号 + 吸收谱测量　；参考：《红外与激光工程》2017年05期

【摘要】：准连续信号是一种重要的调制信号形式,在多个领域有广泛应用。准连续调制激光吸收谱是准连续信号典型应用之一,具有响应迅速、检测精度高、检测限低的特点。在地震、塌方、火灾等灾害环境下,由于堆积形成复杂封闭环境或燃烧不充分有可能产生极易燃爆的CO有毒有害气体。因此,灾害现场破拆机器人进行救援时,需要对现场的气体环境进行监测和分析,避免造成二次爆炸伤害。本系统对CO气体展开研究,采用准连续调制激光吸收谱技术,搭建测量实验系统,实施了改变浓度、压力和温度条件的CO测量实验,得出了准连续调制激光吸收谱2f信号幅值与CO浓度、实际测量时的压力、温度的关系模型。这些关系模型可使破拆机器人在灾害现场根据测量系统实际测得的压力和温度值对CO气体的浓度进行相应的压力以及温度补偿。
[Abstract]:Quasi-continuous signal is an important modulation signal form and is widely used in many fields. The quasi-continuous modulation laser absorption spectrum is one of the typical applications of quasi-continuous signals, which has the characteristics of rapid response, high detection accuracy and low detection limit. In the earthquake, collapse, fire and other disaster environment, due to the accumulation of complex closed environment or insufficient combustion may produce highly explosive CO toxic and harmful gas. Therefore, it is necessary to monitor and analyze the gas environment of the disaster site in order to avoid the secondary explosion injury. In this system, the CO gas is studied, the quasi-continuous modulation laser absorption spectrum technique is adopted, the measurement system is built, and the CO measurement experiment with changing concentration, pressure and temperature conditions is carried out. The relationship between the amplitude of 2f signal of quasi-continuous modulation laser absorption spectrum and the concentration of CO, the pressure and temperature in actual measurement is obtained. These relational models can make the breaking down robot compensate the concentration of CO gas according to the actual pressure and temperature measured by the measuring system at the disaster site.
【作者单位】：天津中德应用技术大学电气与能源学院;天津大学精密测试技术及仪器国家重点实验室;中环天仪股份有限公司;
【基金】：国家科技支撑计划(2015BAK06B04) 天津市自然科学基金(17JCYBJC16800) 国家重大科学仪器设备开发专项(2012YQ06016501) 天津中德应用技术大学科技培育重点项目(zdkt2016-001)
【分类号】：TN249

【相似文献】