Technology June 26 2018 In Innovations in in Pie iezoelectric - - PowerPoint PPT Presentation

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May 24, 2023 105 likes •243 views

Underwater Defense Technology June 26 2018 In Innovations in in Pie iezoelectric Materials for Im Improved Sonar Desig ign Piezo Ceramics are used in a variety of industries for their unique properties The act of sending and

SLIDE 1

Underwater Defense Technology

June 26 2018

SLIDE 2

In Innovations in in Pie iezoelectric Materials for Im Improved Sonar Desig ign

SLIDE 3

Piezo Ceramics are used in a variety of industries

for their unique properties

The act of sending and receiving acoustic signals is

useful for:

Oil & Gas
Pipeline monitoring & pigging
Commercial Fishing
Fish Conservation
Defense

SLIDE 4

In Innovations in in Pie iezo Materials

What we will be focusing
n today:
PZT
Hard
Soft
Lead Titanate
PMN-PT (single crystal)

SLIDE 5

Tradeoffs between Hard & Soft ft PZT

Hard Property Soft piezoelectric d constants dielectric constant dielectric loss hysteresis mechanical Q coupling factor resistivity coercive field elastic compliance aging effects

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Hard PZT Navy Type I, I, III III

Tonpilz Barrel Stave

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Soft ft PZT Navy Type II, II, V

End Capped Tube Hydrophone Hydrophone Array

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Le Lead Tit itanate

In specific applications of high ringing, PT can eliminate the need for backing material ringing design complexity cost

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PMN-PT PT Sin ingle Cry rystal

Performance (5X) Bandwidth of Transducers # elements Form Factor

So why isn’t everyone using this?

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PMN-PT PT Sin ingle Cry rystal

Operating Temp (90C vs 190C for Navy VI) Coercive Field Cost

Barrier to entry for ceramic manufacturers
Supply base

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Summary

Navy Type I II III V VI PZT4 PZT5 PZT8 PZT5J PZT5H Lead Titanate BM300

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Thank you!

Questions? Email me Niru Somayajula, President & CEO nsomayajula@sensortechcanada.com