DocumentCode :
3741124
Title :
Moisture content estimation of polyethylene resin with terahertz time-domain spectroscopy
Author :
Wei Li;Xiaohui Ma;Wei Li;Changcheng Shi;Jun Shen;Tianying Chang;Dongshan Wei;Hongliang Cui
Author_Institution :
National Key Laboratory on High Power Semiconductor laser, Changchun University of Science and Technology, Changchun 130022, China
fYear :
2015
fDate :
7/1/2015 12:00:00 AM
Firstpage :
290
Lastpage :
292
Abstract :
The moisture content of polyethylene (PE) resin is an important factor to affect the quality of PE pipes used in water, gas and oil transportation. To take advantage of the high sensitivity for water with terahertz radiation, we employed terahertz time-domain spectroscopy (THz-TDS) technology to study the water content in PE master batches. The refractive indexes of samples with varying water contents were determined for frequencies between 0.5 and 1.0 THz. We found the refractive indexes were different among four samples and the trends remained during the repeating measurements in nine days. Those differences in the refractive index might be caused by the water content in PE samples. This method provides a potential nondestructive, fast and contactless process in the analysis of PE moisture content.
Keywords :
"Refractive index","Moisture","Plastics","Time-domain analysis","Spectroscopy","Polyethylene","Resins"
Publisher :
ieee
Conference_Titel :
Optoelectronics and Microelectronics (ICOM), 2015 International Conference on
Type :
conf
DOI :
10.1109/ICoOM.2015.7398824
Filename :
7398824
Link To Document :
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