Study on Measurement of Polymer Orientation Degree Base on SVM

Abstract:

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Aiming at the difficulty of measuring orientation degree of polymer material online, a soft-sensing approach based on ultrasonic velocity measurement is proposed.Firstly, the ultrasonic velocities of polymer samples are measured using a DSP-based ultrasonic velocity measurement circuit, with the ultrasonic sensor perpendicular to the extrusion direction of polymer material, the orientation degrees of samples are calibrated with infrared spectroscopy, the relationship between the ultrasonic velocities and the orientation degrees are then established based on SVM. With the measurement model and the ultrasonic velocity measured online, the orientation degree of polymer material can then be measured online. Test results in Lab shows that this approach can implement accurate measurement, and the relative error is about 5%.

Info:

Periodical:

Advanced Materials Research (Volumes 314-316)

Edited by:

Jian Gao

Pages:

2389-2393

DOI:

10.4028/www.scientific.net/AMR.314-316.2389

Citation:

Y. Wang et al., "Study on Measurement of Polymer Orientation Degree Base on SVM", Advanced Materials Research, Vols. 314-316, pp. 2389-2393, 2011

Online since:

August 2011

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Price:

$35.00

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