PHASED ARRAY (PA) TOPICS according to ASNT NDT CP -105
1.0 INTRODUCTION
1.1 TERMINOLOGY
1.2 History of PA-Medical ultrasound ,etc.
1.3 Responsibilities of levels of certification
2.0 Basic Principles of PA
2.1 Review of ultrasonic wave theory :longitudinal and shear wave
2.2 Introduction to PA concepts and theory.
3.0 Equipment
3.1 computer based system
3.1.1 Processors
3.1.2 Control panel including input and output sockets.
3.1.3 Block diagram showing basic internal circuit modules.
3.1.4 Multi-element /multi -channel configurations.
3.1.5 Portable battery operated versus full computer -based system.
3.2 focal law generation
3.2.1 onboard focal law generator
3.2.2 External focal law generator
3.3 Probes
3.3.1 composite materials
3.3.2 pitch, gap and size
3.3.3 passive planes
3.3.4 active planes
3.3.5 Array :1D,2D,polar ,annular, special shape etc.
3.3.6 Beam and wave forming
3.3.7 Grating lobes.
3.4 wedges
3.4.1 Types of wedge design
3.5 Scanner
4. Testing technique
5 Calibration
6 Data collection
7 procedures
7.1 specific application
7.2 component evaluation
7.3 geometric evaluation
7.4 weld inspection
7.5 Data presentation
7.6 Data evaluation
7.7 Reporting