Download - Introduction to NDE Ultrasonic Systems
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Introduction to NDE UltrasonicSystems
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Learning Objectives
familiarity with:ultrasonic system componentsultrasonic NDE terminology
basic information on transducersconstructiontypes
common ultrasonic displays
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flaw
cabling cabling
Pulser Receiver
flaw signal
Ultrasonic System Components
vi(t)vR(t)
input voltageoutput voltage
transducer(transmitter)
transducer(receiving)
component beinginspected
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MODEL 5072PR PULSER-RECEIVER
Pulser/Receiver
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Pulse-echo
Pitch-catch
Common ultrasonic testing configurations
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Through- transmission
Common ultrasonic testing configurations
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Digital Oscilloscope
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back surface reflection
flaw signal
main "bang" signal
oscilloscope display
Ultrasonic Signals
Ultrasonic A-Scan
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Portable Flaw Detectors
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caseelectrical network
backing
crystal
wear plate
connector
electrodes
Ultrasonic System Components
Contact Transducer
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search tube
quarter wave plate
Ultrasonic System Components
Immersion Transducer
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Immersionscanningsystem
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Ultrasonic System Components
Focused Transducer
acoustic lens
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Ultrasonic B-Scan
x
back surface
z
B-scan display
20 MHz B-Scan of a composite,showing laminates
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Ultrasonic C-Scantransducer scan pattern
x
y
z
C-scan image of chem-milled panels athorizontal lap splice / vertical butt spliceon a 727 fuselage
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C-scan image of an IC assembly
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B-scan of the same assembly
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Ultrasonic System Components
References
Krautkramer, J. and H. Krautkramer, Ultrasonic Testing of Materials, Springer Verlag, 1990.
Blitz, J. and G. Simpson, Ultrasonic Methods ofNon-destructive Testing, Chapman & Hall, London,UK,1996.