2343 LSPにより発生するマイクロ衝撃波の強さの測定(S46-3 圧縮性流れの基礎と応用(衝撃波1),S46 圧縮性流れの基礎と応用)  [in Japanese] 2343 The strength of micro shock wave generated by Laser Shock Peening  [in Japanese]

We use the shock wave, which propagate to atmosphere, induced by LSP (Laser Shock Peening) as a fundamental study to control a micro flow. We used a shock wave to occur by collection of light, plasma with a laser in the atmosphere by former technique, but conventional technique can occur by a shock wave at competition, a much lower energy density by the technique used LSP. We investigated the shock wave Mach number for an incidence energy density as a fundamental study of micro flow control by LSP. In addition, we carried out a quantitative measurement of density gradient distributions by speckle graph technique. In comparison with former technique, that a shock wave occurred at a much lower energy density was confirmed.