ALUMINUM OXIDE, A PERFECT COMPLEMENT TO TUNABLE DIODE LASERS IN MOISTURE MEASUREMENT IN NATURAL GAS(PPT)This paper highlights how traditional aluminum oxide (AlOx) sensor-based analyzers complement the newer tunable diode laser (TDL) technologies in the measurement of moisture in natural gas ...
Basics of Tunable Diode Laser Absorption Spectroscopy Key Features & Technology Key Features TDLAS is a very strong tool for highly selective and sensitive measurements. It enables: sensitive detection of ppm to ppb (or even ppt!) level concentrations ...
The most recent platform was designed based on a tunable diode laser absorption spectroscopy (TDLAS) sensor that used a continuous wave quantum cascade laser. The setup was used to measure NO emissions from ovarian cancer cells with detection limits as low as 124 ppt [81]. A previous technique...
- 《Journal of Lightwave Technology》 被引量: 95发表: 2008年 Application of a multi-laser tunable diode laser absorption spectrometer for atmospheric trace gas measurements at sub-ppbv levels We describe the application of a three-laser tunable diode laser absorption spectrometer (TDLAS), called '...
Department of Physics, Sharif University of Technology, Tehran, Iran Somayeh Souri, Rasoul Sadighi Bonabi & Abbas Anvari Department of Laser and Optical Engineering, University of Bonab, Bonab, Iran Naby Hadilou & H. A. Navid Contributions First and second authors (S.S. and N.H.) wrote ...
Since then, the YAG: Nd and YAG: Er solid-state lasers have been widely used in medical surgery, optical communications, coherent laser radar, meteorology, and industrial manufacturing. The parity-allowed f-d transition of Ce3+ in YAG has a very short lifetime and high luminescence efficiency...
A dual tunable diode laser absorption spectrometer(TDLAS) for continuous field measurement of nitric acidand nitrogen dioxide eddy covariance fluxes isdescribed and preliminary field results are presented.The dual TDLAS simultaneously measures nitric acid(HNO$-3$/) and nitrogen dioxide (NO$- 2$/) ...
Gas Quality Measurements in Natural Gas using Tunable Diode Laser Spectroscopy - (PPT)In the presentation, we covered: 1. Principle of operations - advantages of using TDL technology; 2. Real Performance Data for H_2S in Natural Gas: (1) Repeatability, Accuracy and Lower Detection Limit; (2...
(a) Production of 6-MSA as a function of the copy number of the 6-MSAS::PPTase gene pair. (b) Titration of the 6-MSA metabolic pathway using CASCADE. Filled bars – 6-MSA production in strains containing one 6-MSAS::PPTase gene pair plus additional copies of the PPTase gene; grey...
Microstructure and property characterization. Raman and PL spectra were acquired by a con- focal Raman spectroscopic system (Renishaw InVia RM 1000) with 514.5 nm excitation laser at the power of 10 mW and 2 mW respectively. The atomic structure and chemical analysis of the 2D ...