MODULE 1: Introduction to Ultrasonic Testing
-
What to expect in this section? (0:44)
-
How does sound help us inspect objects? (2:08)
-
How does Sound travel? (1:55)
-
Why you sound different on a voice recorder?
-
Ultrasonic Applications: Railroad
-
Ultrasonic Applications: SONAR
-
Ultrasonic Applications: Fishing
-
Ultrasonic Applications: Levitating Objects
-
Responsibilities of Level I, II and III and Qualification vs Certification (4:19)
MODULE 2: Basic Principles of Sound
-
What to expect in this section? (1:00)
-
Modes of Sound Propagation (7:47)
-
Modes of Sound Propagation in detail (7:58)
-
What is frequency and wavelength? (4:11)
-
Test Your Human Hearing Range
-
Velocity, frequency and wavelength equation (3:18)
-
Blind Guy Echolocation
-
What is the relationship between frequency and penetration? (1:50)
-
Review
-
Attenuation (loss of sound) (1:06)
-
Acoustical Impedance and Impedance Ratio (3:08)
-
Reflection vs Refraction of sound. (5:28)
-
Mode Conversion and Critical Angles (6:56)
-
Snell's Law Math Problem (8:50)
-
Calculating Critical Angles using Snell's Law (13:53)
-
QnA Session on Critical Angles (19:15)
-
QnA Session on Snell's Law with Animation (29:22)
Module 3: Equipment
-
What is A-scan, B-scan and C-scan? (2:43)
-
Typical UT Flaw detectors (2:18)
-
Math problems on Decibels and its practical relevance. (7:07)
-
Decibels in details (23:19)
-
4 types of rectifications (3:45)
-
What is Calibration and what are Reference Standards? (1:40)
-
What are Area Amplitude Blocks? (3:32)
-
What are Distance Amplitude Blocks? (2:24)
-
Review
-
Audio Review of Modules 1 to 3
Practical Demonstrations
Module 4: About the Transducer
-
What to expect in this section? (0:58)
-
Piezo-electricity (4:55)
-
Piezo-electric Materials (1:44)
-
Near zone, Far zone and Dead zone (4:39)
-
Three Zones in detail (QnA Session) (23:18)
-
Beam Spread and its dependence on diameter of the transducer. (2:16)
-
Types of transducers (3:22)
-
Resolution and Sensitivity
-
Broadband vs Narrowband Transducers
-
Gain and Voltage
-
How to use powder couplant?
-
Couplants (2:14)
-
Honey vs Couplant
-
Noncontact Transducers (5:59)
-
Review
Module 5: The different UT techniques
Module 6: Reading Assignment Lesson 1-6
Module 7: Additional useful videos
Module 8: Calibrating UT Equipment
Module 9: About discontinuities
Module 10: Bonus Videos
Practice Tests
