MODULE 1: Introduction to Ultrasonic Testing
-
Tips before getting started
-
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)
-
SNT-TC-1A Recommendations
-
SNT-TC-1A Document (5:52)
-
Frequency, Wavelength & Velocity using Brushing example (7:40)
-
What is frequency and wavelength? (4:11)
-
Velocity, frequency and wavelength equation (3:18)
-
Read Chapter 1
-
Summary Lesson 1
-
Review 1
-
Review 1 Explained (24:34)
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)
-
Civa: straight beam and angle beam animation (12:03)
-
What is frequency and wavelength? (4:11)
-
Velocity, frequency and wavelength equation (3:18)
-
Test Your Human Hearing Range
-
Blind Guy Echolocation
-
What is the relationship between frequency and penetration? (1:50)
-
Attenuation (loss of sound) (1:06)
-
Acoustical Impedance and Impedance Ratio (3:08)
-
Civa: Normal Incidence (11:07)
-
Reflection vs Refraction of sound. (5:28)
-
Civa : Refraction (6:35)
-
Mode Conversion and Critical Angles (6:56)
-
Civa: Mode conversion (18:47)
-
QnA Session on Snell's Law with Animation (29:22)
-
Calculating Critical Angles using Snell's Law (13:53)
-
QnA Session on Critical Angles (19:15)
-
Read Chapter 2
-
Lesson 2 Summary
-
Review 2
-
Review 2 Explained (20:43)
Module 3: Equipment
-
Typical UT Flaw detectors (2:18)
-
What is Decible?
-
Loudness Comparison in Decibels
-
Decibels in details (23:19)
-
Math problems on Decibels and its practical relevance. (7:07)
-
DB Sample Problem Explained (11:20)
-
What is A-scan, B-scan and C-scan? (2:43)
-
Civa: A scan (25:37)
-
Civa: B Scan (16:55)
-
Civa: C Scan (22:47)
-
4 types of rectifications (3:45)
-
What is Calibration and what are Reference Standards? (1:40)
-
What are Area Amplitude Blocks? (3:32)
-
CIVA: Area Amplitiude Blocks (6:54)
-
What are Distance Amplitude Blocks? (2:24)
-
CIVA: Distance Amplitude Blocks (7:33)
-
Distance Amplitude Correction (DAC) Curve
-
Most important acronym in Ultrasonic Testing (3:02)
-
FPADS Knuckle Video (2:55)
-
Audio Review of Modules 1 to 3
-
Read Chapter 3
-
Lesson 3 summary
-
Review 3
-
Review 3 Explained (37:04)
Practical Demonstrations
Module 4: About the Transducer
-
What to expect in this section? (0:58)
-
Piezo-electricity (4:55)
-
Piezo-electric Materials (1:44)
-
Civa Near far zone (7:09)
-
Civa: Frequency and Beam Shape (7:10)
-
Near zone, Far zone and Dead zone (4:39)
-
Three Zones in detail (QnA Session) (23:18)
-
Dead Zone Explained
-
Beam Spread and its dependence on diameter of the transducer. (2:16)
-
Civa Beam Spread and Diameter relation (7:53)
-
Types of transducers (3:22)
-
Dual Crystals and the Round Mound of Sound
-
How to quickly check wedge contour for Shear Wave transducers
-
Resolution and Sensitivity
-
Civa Resolution Sensitivity (16:11)
-
Sensitivity Resolution QnA (11:44)
-
Broadband vs Narrowband Transducers
-
Damping (2:55)
-
Gain and Voltage
-
How to use powder couplant?
-
Couplants (2:14)
-
Honey vs Couplant
-
UT Thickness without Couplant!
-
Noncontact Transducers (5:59)
-
Read Chapter 4
-
Lesson 4 summary
-
Review 4
-
Review 4 Explained (24:14)
Module 5: The different UT techniques
Practice Tests
