M. Gulsch, B. Henning, S. Prange, and J. Auge, “Approach of continuous characterisation of liquid multi-component mixtures,” presented at the 5th World Congress on Ultrasonics, Paris, France, 2003, pp. 243–246.

M. Gulsch, B. Henning, S. Prange, and J. Auge, “Ultrasonic Detection of Gas Bubbles in Liquids,” presented at the International Conference Material Testing and Research, Nuremberg, 2003, pp. 199–203.

B. Henning, Ultraschall-Impedanz-Spektrometrie zur Erfassung von Stoff- und Strukturgrößen. 2003.

J. Auge, K. Dierks, B. Henning, and S. Prange, Vorrichtung zur Bestimmung des Volumens, der Oberflächenspannung und der Viskosität von Flüssigkeitstropfen. 2003.

B. Henning, J. Rautenberg, M. Gulsch, and S. Klüppel, “The Use of Time-Reversal Technology for Level Measurement in Liquid Tanks,” in SENSOR~Proceedings, 2003.

J. Auge, K. Dierks, S. Prange, and B. Henning, “Monitoring of droplet growth with nano-litre resolution for liquid flow rate, level or surface tension measurement,” presented at the 16th European Conference on Solid-State Transducers (Eurosensors XVI), Prag, 2002, vol. 5–12, pp. 375–378.

J. Auge, K. Dierks, S. Prange, and B. Henning, “Monitoring of droplet growth with nano-litre resolution for liquid flow rate, level or surface tension measurement,” presented at the 16th European Conference on Solid-State Transducers (Eurosensors XVI), Prag, 2002, vol. 5–12, pp. 375–378.

A. Puttmer, P. Hauptmann, and B. Henning, “Ultrasonic density sensor for liquids,” IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, pp. 85–92, 2002.

A. Püttmer, N. Hoppe, B. Henning, and P. Hauptmann, “Ultrasonic density sensor - analysis of errors due to thin layers of deposits on the sensor surface,” Sensors and Actuators A: Physical, pp. 122–126, 2002.

A. Püttmer, R. Lucklum, B. Henning, and P. Hauptmann, “Improved ultrasonic density sensor with reduced diffraction influence,” Sensors and Actuators A: Physical, pp. 8–12, 2002.

Y. L. Cha, B. Hitzmann, K.-H. Bellgardt, P.-C. Daur, and B. Henning, “Ultraschallgeschwindigkeitsmessung zum Bioprozessmonitoring,” presented at the DECHEMA - Jahrestagung der Biotechnologen, Leipzig, 2001, p. 226.

B. Henning, S. Prange, K. Dierks, and P.-C. Daur, “Quality inspection and characterisation of ultrasonic sensor properties using a PC-controlled scanning measuring system,” presented at the Internationaler MAT Kongress für Materialprüfung und –forschung (Test 2001 und Sensor 2001), Nürnberg, 2001, vol. .2.

B. Henning, P.-C. Daur, S. Prange, K. Dierks, and P. Hauptmann, “In-line concentration measurement in complex liquids using ultrasonic sensors,” Ultrasonics, pp. 799–803, 2000.

B. Henning, P.-C. Daur, S. Prange, and K. Dierks, In-Line-Flüssigkeitsanalysator für verfahrenstechnische Prozesse. 1998, pp. 165–172.

P. Hauptmann, R. Lucklum, A. Püttmer, and B. Henning, “Ultrasonic sensors for process monitoring and chemical analysis state of the art and trends,” Sensors and Actuators A: Physical, vol. 67, no. 1–3, pp. 32–48, 1998.