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首页> 外文期刊>Infrared physics and technology >A new infrared pyrometer for polymer temperature measurement during extrusion moulding
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A new infrared pyrometer for polymer temperature measurement during extrusion moulding

机译：新型红外高温计，用于挤出成型过程中的聚合物温度测量

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摘要

We describe a novel two-wavelength infrared system that we have developed for the on-line measurement of the temperature profiles of extruded polyethylene terephthalate (PET) microfibres. The key feature of the developed system is the use of two specific wavelengths that correspond to fundamental absorption bands of PET. The two wavelengths are located in the far infrared region, which allows accurate measurements even in the low-temperature range. Moreover, they are quite spaced out apart, which allows the achievement of a very good temperature resolution. A particular characteristic of the new infrared device is the use of mirror reflectors as collection optics to overcome problems of optical chromatic aberrations. On-line experimental data obtained from trials carried out on an industrial-scale extrusion die are presented and discussed. Crown Copyright (C) 2004 Published by Elsevier B.V. All rights reserved.
机译：我们描述了一种新颖的两波长红外系统，该系统已开发用于在线测量挤出的聚对苯二甲酸乙二醇酯（PET）微纤维的温度曲线。所开发系统的关键特征是使用对应于PET基本吸收带的两个特定波长。这两个波长位于远红外区域，即使在低温范围内也可以进行准确的测量。此外，它们之间的间隔相当大，可以实现非常好的温度分辨率。新的红外设备的一个特殊特性是使用镜面反射镜作为收集光学器件，以克服光学色差问题。介绍并讨论了从在工业规模的挤出模头上进行的试验获得的在线实验数据。官方版权（C）2004，Elsevier B.V.保留所有权利。

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