Thin-layer composite unimorph ferroelectric driver and sensor properties

Thin-layer composite unimorph ferroelectric driver and sensor properties

Tests were conducted on 13 different configurations of a new class of piezoelectric devices called THUNDER (thin-layer composite unimorph ferroelectric driver and sensor). These configurations consisted of a combination of 1, 3, 5, 7, and 9 layers of 25.4 μm thick aluminum as backing material, with...

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Bibliographic Details
Published in:Materials letters Vol. 35; no. 1; pp. 39 - 49
Main Authors: Mossi, Karla M, Selby, Gregory V, Bryant, Robert G
Format: Journal Article
Language:English
Published: Langley Research Center Elsevier B.V 1998
Elsevier Science Publishers
Elsevier
Subjects:
Acoustic wave devices, piezoelectric and piezoresistive devices
Actuator
Applied sciences
Composite Materials
Displacement
Electronics
Exact sciences and technology
Ferroelectric
Optic
Optical sensor
Piezoelectric device
Poled ceramic wafers
PZT
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
THUNDER
Optic
Ferroelectric
Piezoelectric device
77.55.+f
77.65.Bn
Poled ceramic wafers
Optical sensor
77.84.Dy
PZT
Displacement
THUNDER
Actuator
Ferroelectric device
Piezoelectric sensor
Lead Titanates
Driver
Aluminium
Layer thickness
Piezoelectric ceramics
Composite material
Thin film
Hysteresis loop
Quaternary compound
Zirconium Titanates
Size effect
Displacement measurement
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Summary:Tests were conducted on 13 different configurations of a new class of piezoelectric devices called THUNDER (thin-layer composite unimorph ferroelectric driver and sensor). These configurations consisted of a combination of 1, 3, 5, 7, and 9 layers of 25.4 μm thick aluminum as backing material, with and without a top layer of 25.4 μm aluminum. All of these configurations used the same piezoelectric ceramic wafer (PZT-5A) with dimensions of 5.08×3.81×0.018 cm. The above configurations were tested at two stages of the manufacturing process: before and after re-poling. The parameters measured included frequency, driving voltage, displacement, capacitance, and radius of curvature. An optic sensor recorded the displacement at a fixed voltage (100–400 V peak-to-peak), over a predetermined frequency range (1–1000 Hz). These displacement measurements were performed using a computer that controlled the process of activating and measuring the displacement of the device. A parameter α was defined which can be used to predict which configuration will produce the most displacement for a free standing device.
Bibliography:Langley Research Center
LaRC
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(97)00214-0