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Method and apparatus for detecting structural anomalies in spherical particles, especially nuclear fuel particles for high temperature or very high temperature reactors
Method and apparatus for detecting structural anomalies in spherical particles, especially nuclear fuel particles for high temperature or very high temperature reactors
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机译:用于检测球形颗粒,特别是用于高温或超高温反应堆的核燃料颗粒中的结构异常的方法和装置
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摘要
The method for detecting at least one structural defect in a spherical particle (33) comprises at least the following steps of passing the particle (33) into at least one induction coil (15); exciting the induction coil (15) in order to induce Foucault currents in the particle (33); acquiring an output signal at the terminals of the induction coil (15); and analyzing the signal in order to establish whether or not the particle (33) comprises a structural defect. A plurality of output signals are acquired by passing the particle (33) successively into one or more induction coils (15) with different positions of the particle (33), the or each induction coil (15) being excited at least each time the particle (33) passes in order to induce Foucault currents in the particle (33).
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