用超声波扩频二值信号监测环氧固化

2014 IEEE 2nd Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE) Pub Date : 2014-11-01 DOI:10.1109/AIEEE.2014.7020332

D. Liaukonis, A. Aleksandrovas, L. Svilainis

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引用次数: 0

摘要

介绍了双组分环氧固化监测方法。采用相关处理对飞行时间进行精确估计。将几种扩频信号与传统的脉冲和音突发信号进行了比较。实验结果表明，利用超声速度和衰减测量可以建立可靠的固化相分离。速度变化最小的是4mhz频响信号。

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Epoxy cure monitoring using ultrasonic spread spectrum binary signals

Procedure for dual component epoxy cure monitoring is presented. Accurate time of flight estimation was used employing the correlation processing. Several spread spectrum signals have been put in comparison with conventional pulse and toneburst signals. Experimental results presented indicate that reliable separation of curing phases can be established using both ultrasound velocity and attenuation measurements. Lowest velocity variation was produced by 4 MHz toneburst signal.

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2014 IEEE 2nd Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)

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