Magnetic flux leakage non-destructive testing for sucker rod wellhead

Main components:
Copper plate, circuit board (detection coil), aviation plug, signal wire, wear-resistant cover, etc.
2) Main parameters: length 235mm, width 85mm, height 35mm, weight approximately 415g

Main parameters: length 235mm, width 85mm, height 35mm, weight approximately 415g.
There are 16 sets of coils, corresponding to 16 signal outputs.