Electromagnetic Testing - Eddy Current Testing Procedures

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Therefore all level 1 personnel are required to work according to written instructions prepared by a minimum of a level 2 and authorised by a level 3. Typical details of written inspection requirements are given in Section 6.3. Charlie Chong/ Fion Zhang
Introduction to <strong>Eddy</strong> <strong>Current</strong> Machine ■ https://www.youtube.com/watch?v=S34yt8-zgns Charlie Chong/ Fion Zhang
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Electromagnetic Testing - Eddy Curr
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Charlie Chong/ Fion Zhang
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Eddy current signals- Calibration C
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Eddy current signals- Calibration S
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Eddy current signals- ID Pits Multi
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Eddy current signals- OD Pit Single
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Eddy current signals- OD Crack at S
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Eddy current signals- MIC damage si
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Greek letter Charlie Chong/ Fion Zh
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4.1.1 Eddy current path Eddy curren
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Alternatively Charlie Chong/ Fion Z
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Standard Depth Calculation Where:
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Defect Detection / Electrical condu
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The skin depth equation is strictly
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One should also note that the magne
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Phase lag is an important parameter
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Phase and current density change wi
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At one standard depth of penetratio
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Example: The phase lag calculated w
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4.1.3 Zone of probe action Eddy cur
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4.2. Influence of material temperat
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From Eq. (4.3) it can be seen that
Page 49 and 50: Unit for Electrical Conductivity Th
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Page 55 and 56: To prevent errors from differences
Page 57 and 58: 4.2.3. Compensation The eddy curren
Page 59 and 60: Such signals can be difficult to an
Page 61 and 62: Keywords: • Test frequency is oft
Page 63 and 64: 4.3.2 Phase angle discrimination In
Page 65 and 66: The most common practice involving
Page 67 and 68: Band pass filters: use combinations
Page 69 and 70: FIG. 4.3. Effects of Filtering. (2/
Page 71 and 72: 4.3.4 Magnetic saturation Eddy curr
Page 73 and 74: Discuss on: Eddy current testing of
Page 75 and 76: 4.4 Coupling influence 4.4.1 Vibrat
Page 77 and 78: 4.4.3 Centering, fill factor η (Et
Page 79 and 80: 4.4.4 Sensitivity The distribution
Page 81 and 82: The Response Frequency (F r ) is th
Page 83 and 84: 4.5.2 Frequency response of apparat
Page 85 and 86: 4.6.1 Function of reference samples
Page 87 and 88: FIG. 4.5a illustrates eddy current
Page 89 and 90: 4.6.3 Fabrication and reproducibili
Page 91 and 92: Reference samples Charlie Chong/ Fi
Page 93 and 94: Reference samples Charlie Chong/ Fi
Page 95 and 96: 4.7. Inspection method 4.7.1 Range
Page 97 and 98: 4.7.3 Data analysis and interpretat
Page 99: Level 2 An individual certified to
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Electromagnetic Testing - Eddy Current Testing Procedures

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