"velocimeter." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/velocimeter>.
velocimeter. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/velocimeter
A device that utilizes the Doppler effect to measure the speed of sound in water. Developed by the US Army Corps of Engineers, a velocimeter transmits a pulse of sound through water and measures its echo for changes in either pitch or frequency. Oceanographers employ velocimeters to study the interior structure of breaking waves; they are also used in hydraulic engineering and to study fluid flow.