Under CopyrightKlahn, T.T.KlahnBilleb, G.G.BillebWeiser, V.V.Weiser2022-03-1026.9.20132004https://publica.fraunhofer.de/handle/publica/34511810.24406/publica-fhg-345118A high speed NIR emission spectrometer on the base of an acousto optical tuneable filter (AOTF) is presented that detects up to 1000 spectra per second in the wavelength range 1.25 - 2.6 µm with a resolution of less than 7 nm. As examples spectra series of a pulsating nitromethane pool fire as well as moving and burning droplets were acquired and analysed.en660conference paper