Dual-Luminescent Imaging for Capturing Temperature Field around a Bubble

Dual-luminescent imaging uses two-luminescent outputs to extract the temperature information from an acquired image. This is applied to capture the temperature field around a bubble in boiling water. A laser sheet is used as an illumination source to obtain a temperature profile of the bubble. By using a fast frame-rate camera as an image acquisition unit, the time-resolved temperature information around the bubble can be captured. In the presentation, a current status of this measurement will be presented.