Ut c
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Transcript of Ut c
ULTRASONIC TESTING N D T
What is the principle ?
Transducer( PROBE)
Weld
Defect(Flaw)
Flaw detector
CRTscreen
PROPERTIES OF SOUNDWAVES
Ultrasonic vibrations travel in the form of a wave, similar to the way light travels.
= v/f
= Wavelength
v = material sound velocity
f = frequency
ULTRASONIC TESTINGN D T
Wave Propagation and Particle Motion:
Longitudinal Wave : Particle Motion is in the direction of wave propagation.
Shear Wave :particle motion is perpendicular to the direction of the propagation.
ULTRASONIC TESTINGN D T
SOUND FIELD
ULTRASONIC TESTING N D T
Far Field.
Near zone
Farzone
Near Field
What are the techniques ?
Pulse-echo
Through transmission
Contact
Immersion tech.
ULTRASONIC TESTING N D T
ULTRASONIC TESTINGN D T
B-SCAN
C-SCAN
A-SCAN
What are the Display methods ?
What is an Ultrasonic Transducer?
Ultrasonic transducer works on piezo-electric principle that converts electrical energy to mechanical energy, in the form of sound, and vice versa.
ULTRASONIC TESTINGN D T
quartz
What is an Ultrasonic Transducer?
Ultrasonic transducer works on piezo-electric principle that converts electrical energy to mechanical energy, in the form of sound, and vice versa.
ULTRASONIC TESTINGN D T
quartz +
What is an Ultrasonic Transducer?
Ultrasonic transducer works on piezo-electric principle that converts electrical energy to mechanical energy, in the form of sound, and vice versa.
ULTRASONIC TESTINGN D T
quartz
What is an Ultrasonic Transducer?
Ultrasonic transducer works on piezo-electric principle that converts electrical energy to mechanical energy, in the form of sound, and vice versa.
ULTRASONIC TESTINGN D T
quartz+
What is an Ultrasonic Transducer?
Ultrasonic transducer works on piezo-electric principle that converts electrical energy to mechanical energy, in the form of sound, and vice versa.
ULTRASONIC TESTINGN D T
quartz +
RTD PROBES
ULTRASONIC TESTINGN D T
ULTRASONIC TESTING N D T
DESIGN OF TRANSDUCER
TYPES OF TRANSDUCER
• Dual Element Transducer
ULTRASONIC TESTING N D T
ULTRASONIC TESTING TYPES OF TRANSDUCER
N D T
Angle Beam Transducer
ULTRASONIC TESTING TYPES OF TRANSDUCER
N D T
•FOCUSED PROBE :
ADVANTAGES OF UT
ULTRASONIC TESTING N D T
5 metre
UT can detect a defect of 1 % of job thickness
Defect depth 2.5m
ADVANTAGES OF UT
ULTRASONIC TESTING N D T
Automation and Data acquisition is possible
ADVANTAGES OF UT
ULTRASONIC TESTING N D T