螢光磁粉濃度計
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概要
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In the fluorescent magnetic powder testing method, bath concentration gives much influence to inspection accuracy. Therefore, an instrument is developed for measuring fluorescent magnetic powder density.This instrument is made based on the principle that weak fluorescence from magnetic powder irradiated by ultraviolet ray can be converted into electric quantity. This instrument showed such a proportional relationship as up to about 0.8g/l of concentration in the case of clear bath and up to about 0.4 to 0.5g/l in the case of dirty bath respectively and its practical performance was also confirmed.
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