Xiang Liu
Stanford University
16 Papers
87 Citations
Xiang Liu is an academic researcher from Stanford University. The author has contributed to research in topics: Laser & Absorption (electromagnetic radiation). The author has an hindex of 10, co-authored 16 publications.
Chat about Author
Papers
Extension of wavelength-modulation spectroscopy to large modulation depth for diode laser absorption measurements in high-pressure gases
TL;DR: The effects of the nonideal performance parameters of commercial diode lasers are especially important away from the line center of discrete spectra, and these contributions become more pronounced for 2f signals with the large modulation depths needed for WMS at elevated pressures.
340
Development of a sensor for temperature and water concentration in combustion gases using a single tunable diode laser
TL;DR: In this article, the water vapour spectrum in the 1-2 µm near-infrared region is systematically analyzed to find the best absorption transitions for sensitive measurement of H2O concentration and temperature in combustion environments using a single tunable diode laser with typical distributed feedback single-mode scanning range (1 cm−1).
252
Rapid measurements of temperature and H2O concentration in IC engines with a spark plug-mounted diode laser sensor
Gregory B. Rieker,Hejie Li,Xiang Liu,Jonathan T. C. Liu,Jay B. Jeffries,Ronald K. Hanson,M. G. Allen,Shawn Wehe,P.A. Mulhall,H.S. Kindle,A. Kakuho,Kevin R. Sholes,T. Matsuura,S. Takatani +13 more
- 01 Jan 2007
TL;DR: In this article, a diode laser absorption sensor is used to estimate the temperature and H2O concentration of an IC engine during the compression stroke of an internal combustion (IC) engine.
133
Development of a tunable diode laser sensor for measurements of gas turbine exhaust temperature
TL;DR: In this article, a tunable diode laser (TDL) temperature sensor is designed, constructed, tested, and demonstrated in the exhaust of an industrial gas turbine, where the sensor is determined from the ratio of the measured absorbance of two water vapor overtone transitions in the near infrared where telecommunication diode lasers are available.
114
A diode laser sensor for rapid, sensitive measurements of gas temperature and water vapour concentration at high temperatures and pressures
Gregory B. Rieker,Hejie Li,Xiang Liu,Jay B. Jeffries,Ronald K. Hanson,M. G. Allen,Shawn Wehe,P.A. Mulhall,H.S. Kindle +8 more
TL;DR: In this paper, a near-infrared diode laser sensor is presented that is capable of measuring time-varying gas temperature and water vapour concentration at temperatures up to 1050 K and pressures up to 25 atm with a bandwidth of 7.5 kHz.
91