可调谐半导体激光吸收光谱(TDLAS),tunable diode laser absorption spectroscopy (TDLAS)
1)tunable diode laser absorption spectroscopy (TDLAS)可调谐半导体激光吸收光谱(TDLAS)
1.A long open-path tunable diode laser absorption spectroscopy (TDLAS) system based on wavelength modulation and second harmonic detection is developed.研制了一套基于可调谐半导体激光吸收光谱(TDLAS)技术的开放式长光程甲烷(CH4)浓度实时监测系统,系统采用波长调制和二次谐波探测相结合,并利用光强归一化的方法消除光强波动对测量结果产生的影响,实验证明采用消除光强波动的方法后使测量结果的误差小于2%。
2)tunable diode laser absorption spectroscopy(TDLAS)可调谐半导体激光吸收光谱技术
英文短句/例句
1.Ammonia Gas Concentration and Velocity Measurement Using Tunable Diode Laser Absorption Spectroscopy and Optical Signal Cross-Correlation Method可调谐半导体激光吸收光谱技术光信号相关法氨气浓度流速同时测量
2.Monitoring of Oxygen Concentration Based on Tunable Diode Laser Absorption Spectroscopy基于可调谐半导体激光吸收光谱的氧气测量方法的研究
3.Cavity-Enhanced Absorption Spectroscopy Based on Diode Laser基于半导体激光的腔增强吸收光谱技术研究
4.Diode Laser Absorption Spectroscopy and Calculation for the Vibrational Spectroscopy Constants of O_2～-;半导体激光吸收光谱技术及对O_2～-振动光谱参数的计算
5.The data acquisition and experimental analysis of the gas monitor based on tunable diode laser absorption spectroscopy基于可调谐半导体激光吸收光谱气体检测仪的数据采集与实验分析
6.Research and Optimization on Gas Detection System Based on Tunable Diode Laser Absorption Spectroscopy基于调谐激光吸收光谱技术的气体检测系统研究及优化
7.Diode Laser Absorption Spectroscopy Analysis and Measurement Technology Research and Application;半导体激光器吸收光谱分析测量技术的应用与研究
8.Research on Gas Detection and 2D Distribution Reconstruction by Tunable Diode Laser Absorption Spectroscopy Technique;基于可调谐激光吸收光谱技术的气体在线检测及二维分布重建研究
9.An on-line CO and CO_2 concentration measurement technology based on LDAS基于半导体激光吸收谱的在线CO和CO_2浓度同时测量技术
10.The Tuning Mechanism and Progress of Tunable Semiconductor Lasers;可调谐半导体激光器调谐机理及进展
11.Spectrum and wavelength tuning of laser diode array positioned inside an external cavity defined by a volume Bragg grating体光栅外腔半导体激光器列阵的光谱及调谐
12.Time Sharing Scanning Multiplexing Method of Tunable Diode Laser Spectroscopy System调谐半导体激光光谱分时扫描多路方法
13.Coherence length tunable semiconductor laser相干长度可连续调谐的半导体激光器
14.Research on Trace Gas Detection by Quasi-continuous Laser Wavelength Modulation Absorption Spectroscopy基于准连续激光调制吸收光谱检测技术的研究
15.Research on Novel Fiber-Semiconductor Hybrid Cavity Tunable Lasers;新型光纤半导体复合腔可调谐激光器的研究
16.Tunable photonic microwave generation using optically injected semiconductor laser光注入半导体激光器产生可调谐高频微波
17.Noise analysis of second-harmonic detection with tunable diode laser absorption spectroscopy基于可调谐二极管激光吸收光谱学对二次谐波检测噪声分析研究
18.Tunable Multi-Mode Diode Laser Correlation Spectroscopy for Gas Monitoring气体监测的可调谐多模二极管激光关联光谱技术研究
相关短句/例句
tunable diode laser absorption spectroscopy(TDLAS)可调谐半导体激光吸收光谱技术
3)tunable diode laser absorption spectroscopy可调谐半导体激光吸收光谱
1.Atunable diode laser absorption spectroscopy based fire gas detection system has been developed.提出了基于可调谐半导体激光吸收光谱技术的火灾气体高灵敏实时检测系统,采用光通信波段光纤耦合近红外分布反馈式(DFB)半导体激光器作为光源,利用两台激光器结合调制频率多路技术实现了火灾标志性气体CO,CO2的同时检测,对CO的最低检测限约为0。
4)diode laser absorption spectroscopy半导体激光吸收光谱
5)tunable diode laser可调谐半导体激光器
1.After comparing every method by measuring principle,resolution and measurement range,a CSWC ADI system was conceived withtunable diode laser to measure the step height in nanometer.在此基础上提出以可调谐半导体激光器作为光源,采用可调合成波长链法实现纳米级精度毫米级量程的台阶高度测量,详细分析了方案的原理误差,得到最后的结论。
2.We conceive a CSWC ADI system withtunable diode laser to measure the step height in nanometer scale,and analyze the theoretic uncertainty of the experiment.文章在分析台阶高度测量现状和背景的基础上,着重介绍了用半导体激光器实现台阶高度的绝对干涉测量方案,提出以可调谐半导体激光器作为光源,采用可调合成波长链法实现纳米级精度毫米级量程的台阶高度测量,并详细分析了本方案的原理、误差。
6)tunable diode laser可调谐半导体激光
1.A theoretical description based on Fourier analysis oftunable diode laser wavelength modulation spectroscopy technique is given.在Fourier分析的基础上给出了可调谐半导体激光波长调制光谱技术的理论描述。
延伸阅读
半导体激光泵浦的激光晶体半导体激光泵浦的激光晶体LD pumped laser crystal半导体激光泵浦的激光晶体LD PumPed lasercrystal适用于半导体二极管作泵浦源的激光晶体。传统的固体激光器一般用闪光灯泵浦，由于闪光灯的发光区域宽，只有一部分能量被吸收后转换成激光，大部分转换成热量，使工作物质温度上升，恶化了输出激光束的质量。半导体激光器输出的激光谱线窄(一般为几纳米)，选择合适的半导体激光器，使其激光光谱与某种固体激光材料的吸收光谱匹配，即可达到高效泵浦，大大减轻固体工作物质的热负荷。因为半导体激光器光泵区域小，需用的晶体尺寸也小，因此要求基质晶体内可掺入的激活离子浓度要高，且不产生浓度碎灭。此外，要求与光泵的半导体激光波长相匹配的晶体的吸收带要宽，吸收系数要大;要有低的阑值功率;Q开关运转时，荧光寿命要长。当泵浦光源从闪光灯改变为半导体激光二极管时，对被泵浦的激光晶体产生了不同的要求。用闪光灯泵浦时，对材料的热性能和机械性能有严格要求，而半导体泵浦则更注重材料的光谱性能。在已使用的激光晶体中，掺钱石榴石(Nd:YAG)晶体的阑值功率低，光学质量高，是应用于半导体激光光泵的固体激光器的主要材料。由于Nd3+离子在基质晶体中受分凝系数的限制，Nd3+离子浓度不能太高，所以一些氟化物和钨、钥酸盐晶体等掺杂浓度高，激光效率高，荧光寿命长，有可能成为半导体激光泵浦的后选晶体。用半导体泵浦可制成效率高、功率和频率稳定、激光束质量好、寿命长的全固化激光器，并经各种频率转换技术，可发展成各种波长、各种模式、各种运转方式的激光器，这种激光器将在很大范围内取代已有的各类固体、液体和气体激光器。(沈鸿元)
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