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Canal Flow Rate Measurement Guidelines – Itrc 2005: Hydroacoustic Meters, Charles M. Burt, Stuart Styles
Canal Flow Rate Measurement Guidelines – Itrc 2005: Hydroacoustic Meters, Charles M. Burt, Stuart Styles
BioResource and Agricultural Engineering
A Hydroacoustic flow meter provides remote velocity sampling and integrated flow measurement based on the physical principle called the Doppler shift. The sensors can either project a continuous or pulsed beam of acoustic signals at angles above the horizontal position of the sensor. Flow velocity is calculated by averaging the measured variations in sound frequency reflected back from particles in the water. Depth is measured with a ceramic-based pressure transducer integrally mounted in a surface mount velocity sensor and the device calculates the flow rate.