AIChE J 2016 03 8;62(3):956-964. Epub 2016 Jan 8.
Dept. of Chemical Engineering, Center for Bioelectronics and Biosensors, Biodesign Institute and Fulton School of Engineering Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287.
The development and performance characterization of a new differential pressure-based flow meter for human breath measurements is presented in this article. The device, called a "Confined Pitot Tube," is comprised of a pipe with an elliptically shaped expansion cavity located in the pipe center, and an elliptical disk inside the expansion cavity. The elliptical disk, named Pitot Tube, is exchangeable, and has different diameters, which are smaller than the diameter of the elliptical cavity. Read More