Detecting of Brillouin shift and sound speed in water with the method of ICCD image by time oriented sequential control

摘要

This paper improved the traditional experiment system detecting Brillouin shift in pure water to educe an experimental equation. We calculate Brillouin shifts and the sound speed in pure water not only by the spectroscopic method , but also by the improved method and then deducing an experiential equation at our specific experimental conditions. Comparing the two results, we learn that the experiential equation we deduced is better than the traditional spectroscopic method, smaller error and more close to the theoretical value.