Progress and Challenges in Ultrasonic Gas Flow Measurement
Friday, February 18, 2000 4:00 p.m. Dr. Kevin Warner and Dr. Elan Yogeswaren Daniel Measurement and Control, Inc. Houston, Texas http://www.danielind.com Use of ultrasound transit time to measure flow was first proposed in the late 1920s, but not until the 1960s did an operational device become available. Work initiated by British Gas in the 1980s…