Method and apparatus for inspecting laminated iron core
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United States of America Patent
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Jul 18, 2017
Grant Date -
Oct 13, 2016
app pub date -
Apr 1, 2016
filing date -
Apr 9, 2015
priority date (Note) -
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Abstract
There is provided a method for inspecting a laminated iron core structured by laminating a plurality of iron core pieces-having a predetermined shape and including therein a cooling flow path allowing refrigerant to flow therethrough, the refrigerant being supplied and discharged through openings formed at different positions. The method includes arranging a light projecting part and a light receiving part of a photosensor in the openings of the cooling flow path, respectively, and detecting light from the light projecting part by the light receiving part to thereby inspect a penetrating state of the cooling flow path.
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