title: Global rainbow thermometry for droplet-temperature measurement.
abstract: Standard rainbow thermometry connects the scattering angle of the main rainbow maximum, generated by a single droplet, to the droplet's refractive index and thus to its temperature. Droplet nonsphericity influences the rainbow position and therefore degrades the quality of the droplet-temperature measurement. We propose global rainbow thermometry, which measures the average rainbow position that is created by multiple droplets and from which a mean temperature can be derived. The new technique aims at eliminating the nonsphericity effect. The principle of this method is presented, and a typical recorded image is discussed.
authors: J P
authors: JP
authors: van Beeck
authors: D
authors: D
authors: Giannoulis
authors: L
authors: L
authors: Zimmer
authors: M L
authors: ML
authors: Riethmuller