MULTI-SOUND-PATH ULTRASONIC FLOWMETER CAPABLE OF PARALLEL AND SYNCHRONOUS FLOW MEASUREMENT AND FLOW MEASUREMENT METHOD

Disclosed are a multi-sound-path ultrasonic flowmeter capable of parallel and synchronous flow measurement and a flow measurement method. Drive signals are simultaneously sent to transmitting transducers of all sound paths at the same moment, ultrasonic echo signals from receiving transducers of all the sound paths are simultaneously received and detected, thus the forward and reverse propagation time of ultrasonic waves of the sound paths in a fluid is measured, the time interval of flow rate measurements for the sound paths can be reduced remarkably, the flow measurement of the entire section can more really reflect actual flow, and the problems in traditional multi-sound-path ultrasonic flowmeters are solved that the time interval of cyclic measurements for the flow rates of the sound paths is too long and there are great errors in flow measurements.