10.5 Eddy Current Testing
Study Ref. 5 10.5.1
Outline the following terms and activities relating to eddy current testing: a. Testing
theory b. Impedance
c. Frequency d. Eddy
current instruments
e. Test coils including small and large diameter coils f. Speciality
probes g. Conductivity
standards h. Thinning
standards i. Crack
standards j.
Impedance plane analysis including lift-off, conductivity, permeability, effects of lift-off, material thickness, cracks, and magnetic-opticeddy current imager
k. Factors which determine the current value through the probe coil 1
10.5.2 Give examples of components or structure commonly tested by the eddy current
process. 1
10.6 Ultra-Sonic Testing
Study Ref. 5 10.6.1
Outline the following terms and activities relating to ultrasonic testing: a. Testing
theory b. Wave
forms c. Sound wave generation
d. Generation of longitudinal, shear, surface and plate waves e. Energy losses including reflection of ultrasonic waves, attenuation and couplants
f. Principles of operation including pulse-echo angle beam, through-transmission
testing and immersion testing g. Factors affecting ultrasonic tests including sound beam characteristics and
frequency h. CRT Display presentations including A-scan, B-scan and C-scan
i. The use of reference standards
1
10.6.2 Give examples of components or structure commonly tested by the ultra sonic process.
1
10.7 Radiographic Testing
Study Ref. 5 10.7.1
Outline the following terms and activities relating to radiographic inspection: a. Principles of radiography
b. Radiation sources including X-rays and gamma rays c. Radiographic
equipment d. Steps to radiographic inspection including aircraft preparation, set-up, exposure,
film processing and radiographic interpretation e. Health and safety requirements including the protection of persons not directly
involved with the process 1
10.7.2 Describe how cracks, corrosion and other defects are identified on x-ray film.
1 10.7.3
Give examples of components or structure commonly tested by the x-ray process. 1
29 June 2009 CAA of NZ
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11 Aircraft Welding
11.1 Various Welding Processes
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