Industrial ultrasonic transducers
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Nuclear & power generation
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Composite materials
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Application examples

Titanium billets inspection

Application example


Aspherically focused active surface


Aspherically focused transducers for titanium billets inspection

Multizone technique

Probes

Sets of aspherically focused high resolution probes (Fermat)
Centre frequency from 3.5 MHz to 7.5 MHz
1/2" to 4" active diameter

Techniques

Immersion technique
Multizone technique : each transducer covers a zone of about 1" depth with homogeneous sensitivity

Benefits

Very high sensitivity and resolution : detection of #2 FBH according to GE standards for billets diameter from 6" to 13"
Homogeneity of the performances through the batches and through the years
Reliability in industrial using conditions including long term immersion

Courtesy General Electric Aircraft Engines

Time reversal mirror technique


Large aperture, aspherically focused matrix array probe for titanium billets inspection with Time Reversal Mirror technique

Probes

Large aperture matrix phased array probe
5 or 7.5 MHz, 121 elements

Aspherically focused active area

Technique

Time reversal mirror technique (Pr Fink / ESPCI)

Benefits

Inspection depth up to 10" with more than 19dB s/n ratio on #2fbh
3D beam steering thanks to 2D elements pattern

Courtesy Snecma / ESPCI

 

 

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