Title :
High-speed and precise measurement for ultrasonic liquid flow metering based on a single FPGA
Author :
Yang Bo ; Cao Li ; Luo Yupin
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
New algorithm in transit-time ultrasonic flow meter has been developed for high-speed and precise requirements in semiconductor industries. Differential correlation method is used for transit-time difference calculation, and linear interpolation is applied to enhance the accuracy and precision. Single transit-times are also detected for sound speed correction. This algorithm which was proved with good stability and precision in this paper was done in a single chip of FPGA, and its performances were verified by simulations and experiments.
Keywords :
correlation methods; field programmable gate arrays; flow measurement; flowmeters; high-speed techniques; interpolation; ultrasonic measurement; FPGA; differential correlation method; high-speed measurement; linear interpolation; sound speed correction; transit-time difference calculation; transit-time ultrasonic flow meter; ultrasonic liquid flow metering; Acoustic transducers; Electronics industry; Field programmable gate arrays; Fluid flow; Fluid flow measurement; Instrumentation and measurement; Interpolation; Stability; Ultrasonic transducers; Ultrasonic variables measurement; Ultrasonic flow metering; linear interpolation; parallel processing; transit-time difference;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3352-0
DOI :
10.1109/IMTC.2009.5168465
