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Advanced UT: Phased Array Ultrasonic Testing

1.0 Introduction

What is PiezoElectricity?
How does Phased Array work?
Eddyfi Intro to PAUT Video
Read Chapter 10
Read PAUT Lesson
Quiz on PAUT Lesson
Quiz on PAUT lesson answered (15:10)
What Is Phased Array Ultrasound?
How Do Phased Array Systems Work?
What Do The Images Look Like?
A Brief History of Phased Array Testing
Introduction to Phased Array Equipment (0:13)
What Are Practical Applications of Phased Array NDT Inspections?
Review Questions on Chapter 1

2.0 Transducers

Transducer (0:11)
Drawing the inside of a PAUT Transducer (4:24)
Near Field/ Focus Depth Calulations (14:07)
Beam Spread dependance on Velocity, Frequency and Diameter (3:49)
Attenuation
Mode Conversion and Critical Angles (1:44)
What Is a Phased Array Transducer?
In-phase and Out-of-Phase Sound Waves (4:46)
Inside a Phased Array Transducer (4:43)
Phased Array Wedges (1:49)
Focal Law Sequencing (1:44)
Phased Array Focussing
Beam Steering, Beam Forming (Shaping) and Beam Focussing
Beam Steering (4:14)
Beam Shaping
Grating Lobes and Side Lobes
Focusing With Phased Array Probes
Bonus video on a Dual Matrix Array Transducer (7:27)
Review Questions on Chapter 2

PAUT Labs

Lab #1: Booting Omniscan SX (2:02)
Lab #2 Encoder Calibration
Lab #3 PAUT Zero Degree Calibration
Lab #4 Dead Element Checking Procedure
What are Skews and Index Offsets?
Sectorial Beam Calibration. (Wedge Delay, Sensitivity and TCG)
Phased Array TCG Calibration on Sonatest

3.0 Imaging Basics

Side Lobes and Grating Lobes (4:05)
What is the effect of dead elements?
Imaging Basics
Conventional UT Imaging Scans (1:13)
Phased Array Imaging Scans (2:36)
Overview of Beam Effects on Linear Array Sectorial Scans (3:22)
Review Questions on Chapter 3

4.0 Phased Array Instrumentation

Phased Array Instrumentation Overview (1:41)
Instrumentation Block Diagram (3:11)
Sizing Curve DAC (2:25)
Specifications Phased Array
16:128 or 32:128 PAUT Instrument
PAUT Scanners
Review Questions on Chapter 4

5.0 Phased Array Lectures

1 hr Lecture on Phased Array (55:04)
20 mins lecture on Calibrations in PAUT (21:38)
Curvature, Focussing, Steering, Gates (16:55)
55 Min lecture on Probes, Wedges and Wedge Delay (54:25)
47 minutes video on PAUT Data Collection (47:33)
Making sense of PAUT A, B, C, S Scans (22:32)

Conclusion

20 Questions Quiz #1
20 Questions Quiz #2
20 Questions Quiz #3
20 Questions Quiz #4
PAUT Quizzes answered (79:17)

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