空間フィルタ速度計測法による土石流表面速度の測定
1989 年 25 巻 4 号 p. 504-506
詳細
1989 年 25 巻 4 号 p. 504-506
The spatial filtering velocimetry is a useful non-contact method to measure the surface velocity of debris flow which has a terribly destructive power. The maximum entropy method one of spectrum analysis, was available for extracting the central frequency of the output electrical signal of the sensor and was able to make clear the trends and the fluctuations of the surface velocity of debris flows.
