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Title: Advances In Process Analysis: Quantum Cascade Laser Spectroscopy And Tunable Diode Laser Spectrometers
Author: Dave Mcmillen
Source: 2017 Canadian School of Hydrocarbon Measurement
Year Published: 2017
Abstract: Quantum Cascade Lasers (QCL) and Tunable Diode Laser (TDL) Spectroscopy have gained acceptance for use in process analyzers over the last 10 years. The newest analyzers are able to combine both QCL and TDL, allowing exploitation of Near Infrared and Mid Infrared wavelengths in one analyzer. Using both types of lasers, many analytes can be measured providing very dynamic analyzers that are well suited for emissions monitoring, gas purity and process control applications. This hands on demonstration will use a working analyzer to demonstrate to students how this combined technology has been deployed, and provide students a chance to peer into the workings of an online spectroscopy analyzer. The course will also cover the fundamentals of spectroscopy, and how QCL differs fundamentally from TDL and other broad band techniques such as NDIR and FTIR.




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