參數(shù)資料
型號： PIEZO_SYSTEMS_PRODUCT_CATALOG
英文描述： 600mA, 500kHz Step-Down Switching Regulator in SOT-23; Package: SOT; No of Pins: 6; Temperature Range: -40°C to +125°C
文件頁數(shù)： 32/52頁
文件大?。?/td> 643K
代理商： PIEZO_SYSTEMS_PRODUCT_CATALOG
P
IEZ O
S
Y ST EMS
, I
NC
.
186 Mssachusetts Avenue Cambridge, MA02139 Te: (617) 547-1777 Fax: (617) 354-2200 Web wwwpezocom E-mail: sales@pezocom
TRANSDUCER
ELEMENTS
IN T R
O D U C T IO N
T
T
O B E N D IN G
T R A N S D U C E R S
The piezoceramic bender is a versatile low power electro-
mechanical transducer. As a motor, electrical excitation
(voltage and current) leads to a mechanical response
(motion and force).
The application of an electric field across the two layers of
a bender causes one layer to expand while the other con-
tracts. The net result is a curvature much greater than the
length or thickness deformation of the individual layers.
A simple bender is actually a nine layer device consisting
of four electrode layers, two piezoceramic layers, two
adhesive layers, and a center shim. Crucial electro-
mechanical properties of all individual sheets utilized for
bending motors (or generators) are monitored. Piezo
Systems proprietary bonding process leads to high-
strength, uniform, void free laminations. Our advanced
cutting techniques produce actuators with dimensional
tolerances within ±.001 inch if necessary, widths as nar-
row as .020 inch, chip free edges, non-linear shapes,and
contamination free surfaces.
Piezo Systems provides design, engineering, and produc-
tion capabilities to develop custom bimorph actuators
based on performance specifications rather than simple
part geometry.
BENDING MOTORS
As a generator (or sensor),
(motion and force) leads to an electrical response(volt-
age and current).
mechanical excitation
When a piezoceramic bender is forced to flex, one layer
will be in tension while the other in compression. The
stresses in each layer will produce electrical outputs
which will simply be the summation of the outputs of each
layer.
Benders may be used as strain gauges for easy and rapid
determination of the characteristics of dynamic strains in
structures.
They exhibit extremely high sensitivities, in
the order of 50 times that of wire strain gauges and are
small enough that on most structures they will not mate-
rially affect the vibrational characteristics of the structure.
BENDING GENERATORS
Piezo devices are ideal for use as “smart” devices. That is,
part of the piezo volume is able to sense its surroundings
while the other portion is able to respond as necessary.
Each layer of a bender may be used for each purpose.
“ SMART” DEVICES
32
CATALOG #3, 1998
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