Piezoelectric film (PVDF) sensor
An ultra-high-sensitivity sensor using a PVDF (Polyvinylidene fluoride) piezoelectric film, a special material that exhibits a piezoelectric effect and can be implemented as a flexible film (resin).
It is used in various fields, including industrial and medical use, as it is soft and flexible, so there are no restrictions on free shape implementation, and it is expected to expand the scope of use and demand at a rapid pace.
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Piezoelectric effect ?
Applying physical energy to piezoelectric elements generates electricity (voltage)
Reverse piezoelectric effect ?
Applying electricity (voltage) to piezoelectric elements causes physical changes
Piezoelectric element ?
Natural/artificial materials with piezoelectric effect (reverse piezoelectric effect)
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Types of piezoelectric elements
From natural elements that can be obtained from nature to artificial ones
There are various types, including processed/generated (ceramic)
In addition, with the advancement of technology, flexible and thin-film polymer film-type piezoelectric devices exist relatively in a variety of ways
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Polymer film piezoelectric element
Piezoelectric devices in the form of transparent
and flexible thin films
Using the piezoelectric effect of piezoelectric film
Kind
PVDF(Poly Vinyldienfluoride)
Poly(VDF-co-TrFE)
Poly(VDF-ter-TrFE-ter-M)
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Film Surface Electrode Printing
In order to use piezoelectric film (Piezo Film) as a sensor module, electrode printing is required to obtain sensor signals on the film surface
Additional durability is ensured through effective hardening (heat treatment)
Anodic (+/-) electrode contact avoidance design ensures stability
Ensure safety (durability) of terminal binding
Use as a high-sensitivity sensor / user-friendly
SLEEP TRACKING SENSOR
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