Ultrasonic Imaging of Micro-Leaks and Seal Contamination in Flexible Food Packages by the Pulse-Echo Technique
Ultrasonic Imaging of Micro-Leaks and Seal Contamination in Flexible Food Packages by the Pulse-Echo Technique
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利用脉冲回波技术对软质食品包装中的微泄漏和密封污染进行超声波成像
DOI：
10.1111/j.1365-2621.1998.tb15810.x
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
W. O’Brien
中科院分区：
文献类型：
--
作者：
A. Ozguler;S. A. Morris;W. O’Brien
需要对柔性食品包装进行可靠的检测，以防止密封区域的微泄漏和产品污染，以防止腐败和安全危害。无损检测的超声成像方法，背散射振幅积分（BAI），进行了评估，用于缺陷检测。通道缺陷（直径6-15 μm）和模拟的食物链（直径20-60 μm）垂直于密封方向的密封区域内的全塑料和铝箔的可折叠袋。结果表明，17.3 MHz脉冲回波BAI成像检测到两种类型包装材料中的通道缺陷（9.5-15 μm）和所有股线夹杂缺陷。
Reliable inspection of flexible food packages for micro-leaks and product contamination in the seal area is needed to prevent spoilage and safety hazard. Nondestructive testing by the ultrasonic imaging method, Backscattered Amplitude Integral (BAI), was evaluated for use in defect detection. Channel defects (6-15 μm in diameter) and simulated food strands (20-60 μm dia) perpendicular to the sealing direction were fabricated within the seal region of both all-plastic and foil-containing retortable pouches. Results showed that 17.3-MHz pulse-echo BAI-imaging detected channel defects (9.5-15 μm) and all strand-inclusion defects in both types of package materials.