8/6/2019 Phase Array Comparison

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8/6/2019 Phase Array Comparison

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12 Techniques -Techniques are limited to the

selection of Probe

The phased arraybeams can be steered, scanned, swept and

focused electronically

13 Software No Software Required No Software Required

Phased arrays one of the key requirements

is good, user-friendly software. Besidescalculating the Focal Laws, the softwaresaves and displays the results, so good datamanipulation is essential. As phased arrays

offer considerable application flexibility,software versatility is highly desirable.

14 Automation Not Possible Can be Semiautomatic

Phased array inspections can be manual,semi-automated (i.e. encoded) or fully

automated, depending on the application,speed, budget etc. Encoder capability and

full data storage are usually required.

15Time Consumption

for Initial Set upMore Less Initial Time Consumption

It can be time-consuming to prepare thefirst set-up, the information is recorded in afile and only takes seconds to re-load. Also,

modifying a prepared set-up is quick incomparison with physically adjusting

conventional probes.16 Cost of Equipment - HIgh 3 Times than Conventional Machine

17 Inspection Cost Rs.3.50 Per Sq. Inch Rs 30 Per Sq. Mt4 to 5 times greater than the Conventional

UT.

18 NA Selection of Transducer is basedon the application, Thk etc

The benefits of phased array is its

ability to use multiple elements tosteer, focus and scan beams with a

single transducer assembly.

19Sensitivity to

Complex Geometry

High Probability of detection of flaw only for

Weldment.

Better Probability of detection of Flaw for raw material and

Weldment

High Probability of detection of failure forweldment and raw material