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A method for determining the concentration of a magnetic powder and apparatus for this purpose,
A method for determining the concentration of a magnetic powder and apparatus for this purpose,
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机译:为此目的确定磁性粉末浓度的方法和装置,
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摘要
A method of determining a concentration of magnetic powderly material in a sample is disclosed. In this method, a pair of series-connected exciting coils are disposed in such a manner that magnetic fields generated from the respective exciting coils oppose to each other. A detecting coil is disposed at a position where the magnetic fields from the pair of exciting coils cancel out each other. A sample mixed with magnetic powder is inserted into one of the pair of exciting coils. Then, the method detects a voltage induced in the detecting coil in association with the insertion of the sample into the exciting coil and determines the concentration of the magnetic powder in the sample based on the detected voltage.
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