Conveyor belt should be adjusted near bottom of the detector for better sensitivity as below sensitivity drawing. The tunnel width of coil type seperate is wider than tunnel width of closed coil type for avoiding low sensitivity.
Seperate Coil Type
Closed Coil Type
Comparing chart between separate coil type and closed coil type
sections |
Fe SUS304 |
Testing location inside tunnel |
|
Seperate Coil Type |
1.0mm 2.0mm |
Bottom of the inside of tunnel |
|
Closed Coil Type |
1.0mm 1.7mm |
Center of the inside of tunnel |