 |
DTIC ADA381273: Acoustic Transduction Materials and Devices - Volume 2 |
 |
by Defense Technical Information Center |
 |
Thumbnail |
|
Download |
 |
Web page |
|
|
|
A primary objective of this MURI grouping was to help |
|
shorten the time constant for new materials and device |
|
concepts to be applied in practical Navy Systems. We |
|
believe this has now been realized in joint work on the |
|
composite cymbal type flextensional arrays for large area |
|
projectors, and in the progress made towards a micro- |
|
tonpilz array system. Original work on new step and |
|
repeat piezoelectric high strain systems continues to |
|
make good progress now using commercial motion rectifiers |
|
to produce both linear and rotary systems with high |
|
torque capability. New composite designs are pushing |
|
toward 1 mm diameter motors in the size regimen where |
|
there are real difficulties for conventional |
|
electromagnetic designs. A new area of activity this year |
|
is in piezoelectric transformers where a circular |
|
symmetry design in conjunction with controlled |
|
inhomogeneous poling is shown to offer capabilities which |
|
are of real interest for energy recovery actuator power |
|
systems. Basic studies have evolved a new environmental |
|
SEM technique for high resolution domain wall studies |
|
without changing problems. Work is continuing on reliable |
|
measurements of electrostrictive constants in simple |
|
solids confirming by both direct and converse methods and |
|
permitting the first generalization of trends in these |
|
fundamentally important coupling constants. |
|
|
|
Date Published: 2018-04-29 15:27:34 |
|
Identifier: DTIC_ADA381273 |
|
Item Size: 323343113 |
|
Language: english |
|
Media Type: texts |
|
|
|
# Topics |
|
DTIC Archive; Uchino, Kenji; PENNSYLV... |
|
|
|
# Collections |
|
dticarchive |
|
additional_collections |
|
|
|
# Uploaded by |
|
@chris85 |
|
|
|
# Similar Items |
|
View similar items |
|
|
|
PHAROS |
|
