Phased Array

_____and ______ are the principles of how phased arrays steer and focus the sound beam.

• directional interference

• cascading interference

• directional interference/ constructive interference

• destructive interference/ constructive interference

The figure shows a

• D-scan

• A-scan

• B-scan

• S-scan

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

______ theory describes how____ is converted into_____ and visa-versa.

• piezoelectric-pressure-voltage

• polarity-pressure-voltage

• popular-wavelength-energy

• proportional-shear wave-longitudinal

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

What is a true disadvantage of Phased Array?

• Not portable

• Not very flexible-limited applications

• Requires more training than conventional UT

• Needs time to warm up the equipment

The Phased Array unit calculator produces a file called a _____________, which defines the elements to be fired, time delays, voltages, for both the transmitter and receiver functions.

• Firing Solution

• Focal Law

• Scan Plan

• Focal Point

Tags

NGSS.HS-PS4-5

_____ focusing means that all of the focal points for every focal law are set to the same depth

• Similar

• Static

• Soluble

• Dynamic

What does "D" stand for in TOFD?

• D-scan

• Delay

• Diffraction

• Division

_______is an undesirable condition where array elements are activated, electronically or acoustically, by adjacent elements.

• Back Voltage

• Cross Coupling

• Destructive Interference

• Vertical Linearity

The following is a Multi-Facet 3-D array

• True

• False

Pulser circuits are timed or ______ to achieve the desired steering or focus

• inverted

• amplified

• lagged

• phased