DACON PA Ultrasonic Phased Array Instructions

Document preview
File info: application/pdf · 1 pages · 148.87KB

Dacon Ultrasonic Phased Array PA

Ultrasonic Phased Array (PA)ดาวน์โหลด

Non-Destructive Testing | Resources | Dexon Technology (TOFD)ดาวน์โหลดCorrosion Mapping by Hydroform (PAUT)ดาวน์โหลดFlooded Member Detection (FMD)ดาวน์โหลดHigh Frequency Long Range Ultrasonic Testingดาวน์โหลดLong Range…

Ultrasonic Phased Array (PA) Download

Non-Destructive Testing | Resources | Dexon Technology

Original Document

If the viewer doesn’t load, open the PDF directly.

Extracted Text

DACON ULTRASONIC
PHASED ARRAY

Ultrasonic Phased Array originated as early as 1959 wheb Tom Brown at Kelvin and Hughes filed for a patentof an annular dynamically focussed transducer system. This system latterly became known as phased array.

Ultrasonic technology has evolved from single piezoelectric transducers to electronic beam manipulation using many individual piezoelectric elements in one transducer housing. This allows for complex manipulations of wave fronts.
Ultrasonic phased array technology has been rather scarce in the last decade. Undoubtedly this has been due to a lack of computing power that is required for rapid excitation of the multi element transducers and the need to process large data files these scans produce.

Phased array technology is the ability to electronically modify acoustic wave characteristics such as beam angle, and focusing. Probe modifications are performed by introducing time shifts in the signals sent to and received from individual elements of a probe array. Any ultrasonic techniques for flaw detection and sizing can be applied using phased-array probes. This technology has made major advancements with respect to weld scanning, corrosion scanning, and difficult to inspect materials.
Phased array provides high speed electronic scanning without moving parts, improved inspection capabilities through software control of beam characteristics, and inspection with multiple angles with a single probe.