Recent progress in online ultrasonic process monitoring

SSL Wen, TF Chen, D Ramos-Franca… - … and Sensors for …, 1998 - spiedigitallibrary.org
On-line ultrasonic monitoring of polymer co-extrusion and gas-assisted injection molding are
presented. During the co-extrusion of high density polyethylene and Santoprene ultrasonic …

Real-time and in-line ultrasonic diagnostics of polymer processes

CK Jen, Z Sun, J Tatibouët, Y Ono - Ultrasonic and Advanced …, 2007 - World Scientific
Real-time and in-line ultrasonic diagnostics of polymer extrusion and injection molding
processes together with the high temperature ultrasonic probes used are presented. For …

Ultrasonic in‐line monitoring of polymer extrusion

DR Françla, CK Jen, KT Nguyen… - Polymer Engineering & …, 2000 - Wiley Online Library
In‐line ultrasonic monitoring of polymer co‐extrusion and twin‐screw extrusion are
presented. Co‐extrusion of high density polyethylene (HDPE) and a thermoplastic elastomer …

In line melt temperature measurement during real time ultrasound monitoring of single screw extrusion

EC Brown, P Olley, PD Coates - Plastics, rubber and composites, 2000 - Taylor & Francis
Ultrasonic velocity measurements provide process related information to complement
conventional temperature and pressure measurements, since velocity varies with material …

Temperature measurement of polymer extrusion by ultrasonic techniques

TF Chen, KT Nguyen, SSL Wen… - … Science and Technology, 1999 - iopscience.iop.org
Temperature measurement using an ultrasonic sensor consisting of a piezoelectric
transducer and an ultrasonic waveguide is presented. The waveguide is a clad rod …

Advances in on-line monitoring of polymer injection molding process

DR Franca, SSL Wen, CK Jen… - … Symposium (Cat. No …, 1997 - ieeexplore.ieee.org
On-line ultrasonic monitoring of the polymer injection molding process is carried out. The
completion of the filling is monitored by two ultrasonic transducers (UTs) and the flow front …

Ultrasonic melt temperature measurement during extrusion

J Shen, E Edwards, CL Thomas, AJ Bur - 2021 - nist.gov
An ultrasonics sensor, which can be used at polymer processing temperatures, was
developed and used to monitor temperature of a polymer extrudate. This was accomplished …

Ultrasound: a virtual instrument approach for monitoring of polymer melt variables

EC Brown, TLD Collins, AJ Dawson… - … PAPERS OF THE …, 1998 - books.google.com
Non-invasive ultrasound measurements are not currently widely used, due to limitations in
high temperature transducer technology and signal processing. These have been …

On‐line ultrasonic monitoring of the injection molding process

H Wang, B Cao, CK Jen, KT Nguyen… - Polymer Engineering & …, 1997 - Wiley Online Library
On‐line ultrasonic monitoring of injection molding of a simple polymer box is studied using
pulse‐echo techniques. The flow front of molten polymers inside the mold has been probed …

[PDF][PDF] Ultrasonic monitoring of reactive polymer processing.

CS Brown, CB Hobbs, PHJ Spitteler - 2000 - eprintspublications.npl.co.uk
Reactive processing such as injection moulding of thermosetting resins can now be
monitored non-intrusively using ultrasonic pulses. In this technique, transducers placed in …