基于量子级联激光器的一氧化碳浓度传感器设计
Design of Mine Carbon Monoxide Concentration Sensor Based on Quantum Cascade Laser
路萍1
作者信息
- 1. 中煤科工集团重庆研究院有限公司,重庆 400039
- 折叠
摘要
该文探讨了利用中红外量子级联激光器技术进行一氧化碳浓度检测的方法.该方法基于一氧化碳分子对特定红外波长的吸收特性,通过测量激光通过待测气体后的光强变化,实现对一氧化碳浓度的精确测量.由于煤矿设备本安防爆要求,传感器能耗有一定限制.该文中激光器采用脉冲电流驱动和温度控制动态调整,降低了整机功耗.同时传感器实时监测气体温度和压力,结合随机森林回归算法,对激光光谱的测量结果进行修正和补偿,由此显著提高了一氧化碳浓度测量的精度和稳定性.
Abstract
This article explores a method for detecting carbon monoxide concentration using mid-infrared quantum cas-cade laser technology.This method is based on the absorption characteristics of carbon monoxide molecules at specif-ic infrared wavelengths.By measuring the change in light intensity after the laser passes through the gas to be mea-sured,precise measurement of carbon monoxide concentration can be achieved.Due to the intrinsic safety and explo-sion-proof requirements of coal mine equipment,there are certain limitations on sensor energy consumption.In this ar-ticle,the laser adopts pulse current driving and dynamic adjustment of temperature control,which reduces the power consumption of the whole machine.At the same time,the sensor continuously monitors gas temperature and pressure,and combines with the random forest regression algorithm to correct and compensate the measurement results of the laser spectrum,thereby significantly improving the accuracy and stability of carbon monoxide concentration measurement.
关键词
量子级联激光器/一氧化碳浓度/本安防爆Key words
quantum cascade laser/carbon monoxide concentration/intrinsic safety and explosion-proof引用本文复制引用
基金项目
天地科技股份有限公司科技创新创业资金专项重点项目(2023-TD-ZD005-002)
出版年
2024
NETL
NSTL
万方数据