42 Legend of Ultrasonic Testing Knowledge
Release time:
2024-03-07
1. Fundamentals of Acoustics
(1) Longitudinal wave
(2)Shear wave
（3) Surface waves
(4) Plate wave
(5) Vertical incidence interface
(6) Oblique incidence interface
2. The generation and reception of ultrasound
3. Straight probe structure
4. Ultrasound field
5. Contact testing
6. Straight probe with delay block
7. Double crystal probe
8. Oblique probe
9. Principle of Flaw Detection
(1)Penetration method
(2)Reflection method
Reflection of different defects
(3)Serial testing
10. Principle of Flaw Detection
Digital flaw detector
Display method
A-scan
B-scan
C-scan
11. Testing method
(1)Irregular cracks
(2) Selection of incident direction
(3）Dynamic waveform
(4)The impact of detection frequency
(5) Baseline adjustment
(6) AVG curve
(7) DAC curve
(8) Defect size
12. Factors affecting wave height
(1) Scattering
(2)Absorption
(3)Repeated echoes
(4)Variant wave
(5)Additional wave
13. Application of flaw detection
(1) Thickness measurement
(2)Weld seam inspection
Longitudinal defect detection of welds
Probe movement range
Transverse defect detection of welds
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