Download or read book A Two-Line Absorption Instrument for Scramjet Temperature and Water Vapor Concentration Measurement in Hypulse written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-10-22 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three beam water vapor sensor system has been modified to provide for near simultaneous temperature measurement. The system employs a tunable diode laser to scan spectral line of water vapor. The application to measurements in a scramjet combustor environment of a shock tunnel facility is discussed. This report presents and discusses die initial calibration of the measurement system. Tsai, C. Y. Langley Research Center NAS1-19443; RTOP 505-70-62-01...