Articles | Volume 6, issue 1
J. Sens. Sens. Syst., 6, 9–18, 2017
https://doi.org/10.5194/jsss-6-9-2017

Special issue: Sensors and Measurement Systems 2016

J. Sens. Sens. Syst., 6, 9–18, 2017
https://doi.org/10.5194/jsss-6-9-2017

Regular research article 10 Jan 2017

Regular research article | 10 Jan 2017

Ultrasound tomography for inline monitoring of plastic melts

Norbert Halmen et al.

Related authors

Single-sided NMR for the measurement of the degree of cross-linking and curing
Norbert Halmen, Christoph Kugler, Eduard Kraus, Benjamin Baudrit, Thomas Hochrein, and Martin Bastian
J. Sens. Sens. Syst., 7, 21–30, https://doi.org/10.5194/jsss-7-21-2018,https://doi.org/10.5194/jsss-7-21-2018, 2018
Short summary

Related subject area

Applications: Production measurement technology
Characterization of sand and sand–binder systems from the foundry industry with electrical impedance spectroscopy
Luca Bifano, Alice Fischerauer, Alfred Liedtke, and Gerhard Fischerauer
J. Sens. Sens. Syst., 10, 43–51, https://doi.org/10.5194/jsss-10-43-2021,https://doi.org/10.5194/jsss-10-43-2021, 2021
Short summary
Model-based analysis of constructional steel structures exemplified by dimensional checking on railway car shells using 3D scanning
Uwe Jurdeczka
J. Sens. Sens. Syst., 9, 109–116, https://doi.org/10.5194/jsss-9-109-2020,https://doi.org/10.5194/jsss-9-109-2020, 2020
Short summary
HoloPort – design and integration of a digital holographic 3-D sensor in machine tools
Tobias Seyler, Johannes Engler, Tobias Beckmann, Markus Fratz, Alexander Bertz, and Daniel Carl
J. Sens. Sens. Syst., 9, 33–41, https://doi.org/10.5194/jsss-9-33-2020,https://doi.org/10.5194/jsss-9-33-2020, 2020
Short summary
Precise linear measurements using a calibrated reference workpiece without temperature measurements
Dmytro Sumin and Rainer Tutsch
J. Sens. Sens. Syst., 7, 609–620, https://doi.org/10.5194/jsss-7-609-2018,https://doi.org/10.5194/jsss-7-609-2018, 2018
Short summary
An SQP method for Chebyshev and hole-pattern fitting with geometrical elements
Daniel Hutzschenreuter, Frank Härtig, and Markus Schmidt
J. Sens. Sens. Syst., 7, 57–67, https://doi.org/10.5194/jsss-7-57-2018,https://doi.org/10.5194/jsss-7-57-2018, 2018
Short summary

Cited articles

Alig, I., Lellinger, D., Lamour, R., and Ramthun, J.: Inline Monitoring in the Extrusion Process Using Ultrasonics: Continuous Monitoring of Quality Parameters, Kunststoffe international, 5, 31–33, 2000.
Alig, I., Fischer, D., Lellinger, D., and Steinhoff, B.: Combination of NIR, Raman, Ultrasonic and Dielectric Spectroscopy for In-Line Monitoring of the Extrusion Process, Macromol. Sy., 230, 51–58, https://doi.org/10.1002/masy.200551141, 2005.
Alig, I., Lellinger, D., Steinhoff, B., and Fischer, D.: Filler Dispersion: Ultrasonic Spectroscopy for In-Line Monitoring, Kunststoffe international, 5, 60–65, 2006.
Deutsch, V., Platte, M., and Vogt, M.: Ultraschallprüfung: Grundlagen und industrielle Anwendungen (ultrasonic testing: principals and industrial applications), Springer publishing house, Berlin, Germany, 1997.
Dinger, F.: Ultraschallverfahren für Prozesskontrolle und Qualitätsüberwachung (Ultrasonic method for process control and quality monitoring), Plastverarbeiter, 11, 92–94, 2007.
Download
Short summary
An ultrasound process tomography system has been developed, which enables the imaging of the local filler distribution in plastic melts. The objects investigated were extruded rods made of polypropylene (PP) with radial filler gradients. During extrusion, sound velocity and attenuation of the plastic melt were determined and processed via a modified reconstruction algorithm according to Radon transform into 2-D sectional images.