Differential Luminescent Imaging Method


Figure 1: (a) The ratio of pressure sensitivity between conventional method and differential luminescent method, and (b) Differential luminescent measurement system.
  1. Pressure sensitivity of an unsteady PSP measurement can be controlled by the differential method.

Demonstration of Differential Luminescent Imaging Method

Acoustic pressure obtained by the differential luminescent imaging. Peak-to-peak acoustic pressure measurement of ±200 Pa using the present method is shown as an example below.

Figure 2: (a) Analytical solution, (b) Experimental pressure distribution, (c) Cross-sectional pressure over A-B, and (d) Pressure profile at the point shown in Figure 2 (b).

Key Person

Currently this topics is done by Tatsu.

Related Publications

1. Hayashi, T., Sakaue, H., “Differential Luminescent Imaging Method,” Journal of Applied Physics, Vol. 127 No. 9, DOI: 10.1063/1.5131752, 2020.
2. Hayashi, T., Hase, S., Sakaue, H., “Differential Pressure-Sensitive Paint Method,” the 58th AIAA Aerospace Sciences Meeting, AIAA Science and Technology Forum and Exposition, AIAA paper 2020-0291, 2020.