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Definition:
A mosaic of
transducer elements in which the timing of the elements'
excitation can be individually controlled to produce certain
desired effects, such as steering the beam axis or focusing the
beam
Why Use Phased Array
•
High speed electronic scanning without moving
parts • Improved inspection capabilities through software
control of beam characteristics • Inspection with multiple
angles with single, electronically controlled probe • Greater
flexibility for inspection of complex geometries
o Optimized focusing
o Optimized beam angle
Basics of How They Work
• Ultrasonic phased arrays consist
of a series of individual elements, each with its own connector,
time delay circuit, and A/D converter
•
Elements are acoustically insulated from each other
•
Elements are pulsed in groups with pre-calculated time delays for
each element, i.e., “phasing.”
• For economic reasons,
pulsers are usually multiplexed
• Instrumentation
nomenclature such as a PA 16/128 refers to an instrument with 16
multiplexed pulsers and a total of 128 ultrasonic
channels.
Typical Applications
Thickness Determination of Materials
Inspection of Castings
Inspection of Forgings
Inspection of Welds
Inspection of Aerospace Materials
A Career in Ultrasonic Phased Array
Careers can be in a variety of areas:
- Service Inspection Companies
- Smelters & Foundries
- Rolling & Forging Mills
- Petro Chemical & Refineries
- Mining & Mineral Processing
- Aircraft Maintenance & Manufacturing
- Vehicle Maintenance & Manufacturing
- Government Bodies
- Engineering Firms
- Research & Development Facilities
- Education & Training
- Equipment Manufacture & Sales

What Courses Are Offered?
Introduction to Phased Array (40 Hours)
Phased Array Level 2 (80 Hours), Assessment approved for
AS3998/AINDT certification.
Introduction to Phased Array
Duration:
5 Days
Purpose:
The Introduction to Phased Array is an informal course, teaching
the basics of Phased Array
equipment and techniques. The majority of this course is practical
and will focus on
calibration procedures and the inspection of typical engineering
components.
Pre-requisites: UT2 Welds
Exams:
There are no formal exams.
Equipment:
It is preferable that students supply their own equipment as
different manufacturers use
different operating procedures. However we have a limited number
of OmniScan units
generously supplied by Olympus NDT available.
Ultrasonics Phased Array Level 2 Welds
(Includes AINDT Approved Examinations for Phased Array
Certification)
Duration:
10 Days
Purpose:
To train personnel in detection, measurement and recording of
discontinuities in Welds
using Ultrasonic Phased Arrays. (Based on the method code AS2207)
Due to the variances in equipment available, two competencies are
available:
1) Manual Phased Array Inspection
Real time inspection and interpretation (for systems not
containing data collection
or encoded scans).
2) Encoded Phased Array Inspection
Encoded data collection and interpretation.
Note: Satisfactory completion of Encoded Phased Array encompasses
Manual
Phased Array Inspection.
Click Here For Further
Information
Recommended Pre Course Study:
Basic Mathematics - Trigonometry and Algebra
More information about the pre-requisites, training and assessment
can be found in the ATTAR Student Handbook at our
Downloads and Literature page.
Examples of typical math questions can be found at our
Downloads and Literature
page.
The course syllabus can be found at our Downloads and
Literature page.
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