byline
发表于 2025-3-23 09:44:26
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EXUDE
发表于 2025-3-23 17:09:33
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显而易见
发表于 2025-3-23 21:39:31
https://doi.org/10.1007/3-540-30924-1 equated to its components along the . and . directions of a Cartesian system, i.e..where . and . are unit vectors directed parallel to the . and . axes. Scalar quantities, such as mass and time, are independent of direction and have values of magnitude only. Together with the magnitudes of vector quantities, they are printed in normal type.
TATE
发表于 2025-3-24 01:17:50
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SAGE
发表于 2025-3-24 03:24:25
Fundamental theory, equated to its components along the . and . directions of a Cartesian system, i.e..where . and . are unit vectors directed parallel to the . and . axes. Scalar quantities, such as mass and time, are independent of direction and have values of magnitude only. Together with the magnitudes of vector quantities, they are printed in normal type.
sperse
发表于 2025-3-24 08:43:23
Magnetic methods,sometimes have to be taken into account, but this can be minimized by operating at very low frequencies, e.g. up to a few hertz. On the other hand, with some applications, the induction of eddy currents may provide useful information.
冥界三河
发表于 2025-3-24 11:33:12
Book 1997Latest editionjects in non-destructive testing (NDT). The subject matter here is confined to electrical and magnetic methods, with emphasis on the widely used eddy current and magnetic flux leakage methods (including particle inspection), but proper attention is paid to other techniques, such as microwave and AC
flourish
发表于 2025-3-24 14:51:24
More advanced eddy current testing methods, end of a diametrical beam or on a cylinder which rotates by electrical propulsion around the tube axis and follows a helical path as it progresses through the tube in a corkscrew manner. This device can also be used to test for surface defects in fastener holes such as those located in aircraft bodies (Figure 6.1).
START
发表于 2025-3-24 19:05:18
1567-7990 on the subjects in non-destructive testing (NDT). The subject matter here is confined to electrical and magnetic methods, with emphasis on the widely used eddy current and magnetic flux leakage methods (including particle inspection), but proper attention is paid to other techniques, such as microwa
烦忧
发表于 2025-3-25 01:12:39
Marsha Rosengarten,Mike Michaelttention in the various NDT journals probably because they are so effective there is not much demand for improvement. An important exception is the AC potential drop method, which has undergone rapid development in recent years in view of its ability to provide accurate assessments of surface cracks in metals.