PRESENTED BY: SHUBHAM GUPTA

EC 3RD YEAR

ROLL NO-1235131094 `

Technical seminar on

contentIntroduction

Working

Advantages

Disadvantages

Conclusion

Speakers Thinner Than Paper! PVDF Piezo

Film Technology

Richard Haberkern

By: Richard

Haberkernon march 5,2015

(Invented many different

electronic and film industry

related products.)

SOUND FROM PAPER THIN

MATERIAL

• Thin film speaker

technology is the

space aged material of

the future.

• It can be cut and

shaped into just about

any form imaginable.

PVDF material produces rich sound and is as thin as

paper

THIN FILM PIEZO SPEAKER

Polyvinylidene Fluoride Piezoelectric

Film (PVDF) is a relatively new class

of piezo-electric device.

PVDF material is a thin plastic polymer

sheet with its molecules aligned in a

uniform pattern.

It has a electrically conductive coating

deposited on each side of the sheet.

AMAZING PIEZO-FILM

PROPERTIES

Piezo film has an extremely high output

potential, about 10 times greater than ceramic

materials.

The material has a high mechanical strength and

is impact resistant.

Other attributes include:

Wide Frequency Range. (.001 Hz - 10 GHz)

High dielectric strength.

Good mechanical durability.

Moisture resistant.

THIN FILM SPEAKER DESIGN

INTERESTING POSSIBILITIES

Paper Headphones for fun, promotions and listening emergencies!

AdvantageThis amazing material is only 80

microns thick.

It can produce rich sounding audio.

.

SHAPING SOUND THE WAY YOU

WANT IT

When you bend and shape the material, something interesting

happens.

Each shape you create will change the perceived sound and

results in different qualities of audio reproduction.

And just like in all speaker designs, the results will change with

each frequency you try to put through the PVDF material.

Jumbo Thin Film Speaker Kit (240mm X 170mm) - mono audio amplifier included.

THIS IS NOT ORDINARY PLASTIC

PVDF

Speakers

are

specially

made sheets

of

piezoelectri

c vinyl with

conductive

coatings.

A BETTER MATERIAL FOR A

LOWER PRICE

This is not the lower quality, higher cost material you see

available from measurement specialist companies and

electrostatic speaker makers.

This film is the speaker itself and uses a conductive coating

that is not metallic in nature. That means you get a more

crisp, high quality audio without that annoying "tin can"

sound.

Disadvantages Challenge will be to learn to create the ideal

shape or shapes to create the best sounding

audio.

Watch this video to hear the audio quality

produced by this amazing material: