Bibliography

1) Programmed Instruction Handbook: Non-Destructive Testing Introduction, UT, MT, and PT Volumes, 1995,  PH Diversified Inc. Harrisburg, NC

2) Physics for Scientists and Engineers by Randall D. Knight., 2013, 13th Edition, Glenview, IL

3)Ultrasonic Testings FAQ by Olympus Corporation,
http://www.olympus-ims.com/en/knowledge/ultrasound/applications/ultrasonic-faq/



Attraction and Repulsion of Di-poles photo on the "Magnetic Particle" Page
https://www.pinterest.com/pin/358739926544291820/

Magnetic Field of a bar magnet Photo on the "Magnetic Particle" Page
https://www.wonkeedonkeetools.co.uk/bar-magnets/what-are-bar-magnets-used-for/

Magnetic Field through a loop of current Photo on the "Magnetic Particle" Page
http://www.funscience.in/study-zone/Physics/MagneticEffectOfElectricCurrent/MagneticFieldDueToCircularWireLoop.php


Crack in Material Creates Dipole Photo on the "Magnetic Particle" Page
http://www.nationalboard.org/Index.aspx?pageID=164&ID=377


Magnetic Particle Testing Photo on "Magnetic Particle" Page
http://www.energyworkforce.net/?p=107

Eddy Current Diagram on "Eddy Current" Page
http://www.microwavesoft.com/eddycurrent.html

Eddy Current Hand Probe Testing on "Eddy Current" Page
http://www.olympus-ims.com/en/applications/eddy-current-weld-inspection/


Eddy Current Tube Test on "Eddy Current" Page
https://dir.indiamart.com/impcat/eddy-current-tester.html

Ultrasonic Testing Photo on "Ultrasonic" Page
http://www.precisionndtllc.com/service/ultrasonic-testing