Title :
Sensing turbulence transit time by pulsed ultrasound for single-phase fluid flow measurement
Author :
Nemade, Harshal B. ; Anjaneyulu, T. ; Pandey, Prem C.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Bombay, India
Abstract :
A new technique for sensing turbulence in single-phase fluid flow by pulsed ultrasound is developed. The velocity component of turbulence perpendicular to the flow axis is sensed by two ultrasonic transducers mounted diametrically opposite on the pipe. The technique facilitates detecting variations in time of flight of two ultrasonic pulses transmitted simultaneously in the opposite directions and perpendicular to the flow axis. The flow velocity is obtained from the position of the peak in the cross correlation function of the turbulence signals sensed at two locations on the pipe. A numerical simulation of the technique based on a theoretical model has been carried out. The technique has been implemented to measure volumetric flow noninvasively in a water circulation system with PVC pipes
Keywords :
acoustic correlation; acoustic pulses; flow measurement; pipe flow; turbulence; ultrasonic applications; ultrasonic transducers; PVC pipes; cross correlation function; numerical simulation; pulsed ultrasound; simultaneous US pulse transmission; single-phase fluid flow measurement; theoretical model; time of flight variations; turbulence sensing; turbulence transit time; ultrasonic transducers; velocity component; volumetric flow measurement; water circulation system; Delay effects; Fluid flow; Fluid flow measurement; Pulse measurements; Tagging; Time measurement; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.612364