@inproceedings{HoffmannUngerHoetal.2013, author = {Maik Hoffmann and Alexander Unger and Min-Chieh Ho and Kwan Kyu Park and Butrus T. Khuri-Yakub and Mario Kupnik}, title = {Volumetric characterization of ultrasonic transducers for gas flow metering}, booktitle = {Proceedings, 2013 IEEE International Ultrasonics Symposium}, pages = {1315 -- 1318}, doi = {10.1109/ULTSYM.2013.0336}, year = {2013}, }