1. GB/T 5126-2001
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j~ 11rf ~ f;j JJ it
ft ~ GB/T 5126-1985
Eddy current inspection method for cold drawn
thin wall tubes of aluminum and aluminum alloy
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GB/T 9445-1999 xtJJl_~AllP8f~~~~iA1iE
GB/T 12604. 6-1990 xtJJlf&i1J!~*m: 7~._~
*;fijm*m GB/T 12604. 6 9=t:tm~~J(~*m:o
3. 1 7~. _rJj!IJ 7! method of eddy current inspection
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3. 2 • MA; _III encircling coil
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3· 4 ;f;IHiI 5HJT 7! method phase analysis
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3. 5 iffiJ $1J % fJT 7! method of modulation analysis
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3. 6 {~~ It signal to noise ratio
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3· 7 :i!~fiii~~{)(~ speed-sensitive instrument
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3. 8 ~$~~ edge effect
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204

3. GB/T 5126- 2001
3. 9 ~;JJ ~ III differential coil
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3.10 a~~11 OO;l;r{1E*~ fill factor
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3. 11 ~~ difference of induced-potential
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15~16 0.50 0.70 , 0.70 . 1. 00
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6. GB/T5126 - 2001
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