Temperature Measurement of Detonation Using UV-Absorption of O2

Temperature-dependent molar extinction coefficients of O2 were measured behind reflected shock waves. Using this temperature dependence of the molar extinction coefficients, the overall temperature profiles of H2-O2 detonation were obtained within an error of 10% and with micro-second time resolution. The temperatures measured at C-J point were nearly the same as the calculated. However, the precise observation of the absorption signal showed that the gas temperature fluctuated shortly after the detonation front. This article is from 'Proceedings of the International Symposium on Shock Tubes and Waves (13th), Niagara Falls, July 6-9, 1981,' AD-A122 200.