Resources
Tube Inspection
Illustrated guides demonstrating the configuration and use of ETher NDE products to support particular use cases.
Dual Frequency Non-Ferrous Tube Inspection using Mixing or Absolute Differential
AP003
Mixing on a non-ferrous tube to minimise the effect of a ferrous support ring.
The conventional example of mixing is to use a non-ferrous tube and minimise the effect of a ferrous support ring, this test uses 21kHz on Channel 1 and 18kHz on Channel 2.
Resources
App Note Filter