%0 Journal Article %T Research and design of ultrasonic Doppler flowmeter hardware system based on STM32 %A Sun, Song %A Zhang, Chaozhu %A Gong, Xiaodong %J Proceedings of SPIE %V 13176 %P 131761A-131761A-8 %@ 0277-786X %D 2024-05-22 %I SPIE %~ DeepDyve