１種類の蛍光体による２色LIF計測法を用いた自動車用トランスミッションオイルの温度分布計測システムの開発

抄録

The purpose of this study is to develop a non-contact temperature distribution measurement system for automotive transmission fluid using the two-color LIF method. The advantages of this method are that it can be easily applied to minute measurements by using a color camera for image acquisition, simplifying the measurement process, and enabling measurement at low cost. Focusing on the fact that the fluorescence wavelength of a single type of phosphor changes with temperature, the fluorescence of one phosphor is measured spectroscopically with a filter built into a color camera as in the two-color LIF method. In the experiment, pyrromethene597 was used as a temperature tracer, and an arbitrary cross section was made with sheet light at a wavelength of 532 nm, and the image was analyzed. A temperature test curve was obtained from the luminance ratio of the red and green images, the temperature distribution was visualized, and its accuracy was evaluated. From the visualized temperature distribution image, the temperature distribution of low temperature oil injected into high temperature oil was successfully obtained.