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RSS FeedsSensors, Vol. 19, Pages 1408: Eddy Current Transducer with Rotating Permanent Magnets to Test Planar Conducting Plates (Sensors)

 
 

22 march 2019 10:01:23

 
Sensors, Vol. 19, Pages 1408: Eddy Current Transducer with Rotating Permanent Magnets to Test Planar Conducting Plates (Sensors)
 




In this paper, we present an eddy current transducer with rotating permanent magnets for the inspection of planar conducting plates. The transducer consists of a rotating head with permanent magnets, which is used to generate variable magnetic fields and thus induce eddy currents in the tested material. Two Hall sensors connected in a differential manner are used to detect a nonuniform distribution of eddy currents induced in a specimen containing a defect. To prove the usability of the transducer, a number of experiments were conducted on thick aluminum samples containing notches at different depths. Selected results of the achieved measurements are presented.


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28 viewsCategory: Chemistry, Physics
 
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