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

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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.

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SOUND FIELD

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Far Field.

Near zone

Farzone

Near Field

What are the techniques ?

Pulse-echo

Through transmission

Contact

Immersion tech.

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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

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ULTRASONIC TESTING N D T

DESIGN OF TRANSDUCER

TYPES OF TRANSDUCER

• Dual Element Transducer

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ULTRASONIC TESTING TYPES OF TRANSDUCER

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Angle Beam Transducer

ULTRASONIC TESTING TYPES OF TRANSDUCER

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•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