Measurement techniques for on-line
investigation during production | 
Ultrasonic sensor for measurements at
high pressures and high temperatures |
A news from the Homepage of the German Plastic Institute
A new project, tailored to practical requirements but still very much in its infancy, is the use of physical measurement techniques for on-line
investigation during production. One of the focal points of the project is ultrasonic measurement, both for on-line application and for use in
the laboratory. This involves the development of suitable on-line sensors and data processing and evaluating systems. The areas of
application are: the kinetics of polymerization, the processing of thermoplastics, the monitoring of film formation in the case of adhesives and
paints, or the crosslinking process of thermosets. The last-named process is applied for gel point determination using dielectric
spectroscopy. The success of this future-oriented project depends very much on the cooperation between our chemists, physicists and
engineers, for it calls for a combination of experiences gained in all three fields.
Basic development is also being undertaken in the field of piezoelectric and pyroelectric materials (e.g. PVDF). We have developed models
which describe these properties. Suitable laboratory equipment is already available for experiments.
For more Information:
Deutsches Kunststoff-Institut
Schloßgartenstraße 6
D-64289 Darmstadt
Tel:: 0049-6151/162104
Fax: 0049-6151/292855
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Rolf Diederichs updated 01. Jan 1997 info@ndt.net