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Section 4.1.2
Sensor Bar
The sensor bar is captured in the above illustration. Notice that the magnet bridge assembly is
almost completely transparent so that the sensor can be clearly seen. The 24-pin connector
(highlighted in red) is a connection point for the signal cable (which is also connected to the 24-
pin connector on the Electronics Box as illustrated in Section 4.1.3).
The sensor bar contains an array of sensors across the full width of the scanning head. These
sensors detect the leakage fields generated by the inspection process. It is suspended and
spring mounted within the magnetic bridge by six studs. Two of the studs use wing nuts
(highlighted blue in the above illustration) to quickly adjust the height of the sensor bar from
the inspection surface. The remaining four studs are simply there to better stabilize the sensor
bar while in operation.
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