The CMOS-MagView by Matesy is another tool available at International Magnaproducts for scanning magnets. It uses a high resolution CMOS camera sensor combined with several polarizing filters to exploit the Faraday Effect. This is when a magnetic field causes light particles to rotate in a certain fixed direction corresponding to the direction of the field.
 

Faraday EffectTechnical Features

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How can you tell if your design is correct for an application, magnetically? This question has been asked so many times by our customers, IMI was determined to design a state of the art MagScan electronic magnetic field strength scanner to visually show our customers how their design would affect the magnetics in their application.