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测量了PE 管的纵横波声速及PE 管热熔焊缝声衰减系数,确定了PE 管材料的声学性能。采用小波域去噪理论去除噪声,提高了检测回波的信噪比。试验表明,超声检测方法适用于PE 管热熔焊缝的焊接质量

2023-10-24 4 测试验证

Prakash Rashinkar has over 15 years experience in system design and verificationof embedded systems for communication sa...

2014-01-24 96 测试验证

Prakash Rashinkar has over 15 years experience in system design and verificationof embedded systems for communication sa...

2013-11-19 162 测试验证