L. Montgomery Smith, Bruce W. Bomar, Bruce A. Whitehead. Measuring the Level of Liquid in a Partially-Filled Pipe Via the Ultrasonic Pulse-Echo Method Using Acoustic Modeling. In Henry Selvaraj, Dawid Zydek, editors, 21st International Conference on Systems Engineering (ICSEng 2011), Las Vegas, NV, USA, Aug. 16-18, 2011. pages 292-296, IEEE, 2011. [doi]
Abstract is missing.