System and method for measuring shrinkage behaviour and modulus change during solidification of a polymeric resin
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 21, 2005
app pub date -
Mar 15, 2005
filing date -
Feb 15, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and a system for measuring the variation of volume and modulus during the solidification of a polymeric resin are provided, which use ultrasonic waves propagating through a sample and a coupling medium. On the one hand, the time of travel of the part of a signal that is reflected at the interface between the sample and the coupling medium back to the ultrasound transducer, gives the position of the interface between the sample and the coupling medium. This information may be used to determine the shrinkage of the sample. On the other hand, the time of travel of part of a signal that propagates through the thickness of the sample and then reflects from the bottom of the sample at the interface between the sample and a container in which it is contained may be used to determine the degree of stiffness of the sample. The time of travel is of the order of the microsecond and the change of thickness of the sample is of the order of a few hundred micrometers.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully