涡流检测标准理解

1.         BS EN1971-1999copper and copper alloy-eddy current test for tube: 怎么理解“ theacceptance criteria, detection of local discontinuities by encircling coilssystem and detection of non-local discontinuities by encircling coil systemswith lower detection levels?”

2.        In the criteria BS EN1971-1999copper and copper alloy-eddy current test for tube:

K2=(signal for the lower detection thresholds)/(signal for the normal detection threshold)怎么理解这个公式的？

3.         

In the criteria BS EN1971-1999 copper and copper alloy-eddy current test for tube: d0=N0/L0 ,怎么理解这个公式的？

可与我联系，我们提供欧标涡流2级培训发证服务。

丁伟臣 发表于 2014-12-13 16:52
可与我联系，我们提供欧标涡流2级培训发证服务。

EN473的证书？

yanyingjuanli 发表于 2014-12-16 20:51
EN473的证书？

现在更改为EN ISO9712证书了