1994
DOI: 10.1080/00150199408215918
|View full text |Cite
|
Sign up to set email alerts
|

High displacement ceramic metal composite actuators (moonies)

Abstract: The two most common type of piezoelectric actuators are the multilayer actuator with internal electrodes and the cantilevered bimorph actuator [']. A new type of composite ceramic actuator is the multilayered multistacked moonie (multi-multi moonie). Normal multilayer actuators produce a large generative force, but only a small displacement. Conversely, bimorphs produce large displacements but the forces are very small. The moonie actuator combines the advantages of both, producing a large displacement as well… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

1
18
0

Year Published

1999
1999
2017
2017

Publication Types

Select...
5
4

Relationship

0
9

Authors

Journals

citations
Cited by 52 publications
(19 citation statements)
references
References 2 publications
1
18
0
Order By: Relevance
“…Advantages of the Moonie include (1) a factor of 10 enhancement of the longitudinal displacement, (2) an unusually large d 33 coefficient exceeding 2500 pC/N, and (3) enhanced hydrostatic response. 73,74 Recent improvements in the basic Moonie design have resulted in an element called a Cymbal, a device that possesses more-flexible end caps, resulting in higher displacement. 75 Applications include transducer arrays, medical imaging transducers, and hydrophones.…”
Section: April 1999mentioning
confidence: 99%
“…Advantages of the Moonie include (1) a factor of 10 enhancement of the longitudinal displacement, (2) an unusually large d 33 coefficient exceeding 2500 pC/N, and (3) enhanced hydrostatic response. 73,74 Recent improvements in the basic Moonie design have resulted in an element called a Cymbal, a device that possesses more-flexible end caps, resulting in higher displacement. 75 Applications include transducer arrays, medical imaging transducers, and hydrophones.…”
Section: April 1999mentioning
confidence: 99%
“…In contrast, traditional flextensional actuators 4 can generate large axial displacements but cannot withstand large forces, limiting their applications as actuators. The recent development of a new class of flextensional transducers, such as the Moonie, 5,6 the Rainbow, 7 the Cerambow, 8 and the Thunder, 9 has generated new interest in piezoelectric transducers. 10 -14 All these transducers can convert the lateral-strain gradient that results from a nonuniform d 31 distribution in the thickness direction into a large axial displacement.…”
Section: Introductionmentioning
confidence: 99%
“…While the direct extensional piezoelectric actuators made from soft lead ziconate titanate (PZT) can withstand very high stresses, they only generate strains on the order of 10 Ϫ4 under large electric fields (ϳ10 6 V/m). Even with the relaxor-based single-crystal materials, [1][2][3] such as Pb(Zn 1/3 Nb 2/3 )O 3 ⅐PbTiO 3 (PZN-PT) and Pb(Mg 1/3 Nb 2/3 )O 3 ⅐PbTiO 3 (PMN-PT), the strain level is at best one to two percent at extremely high electric fields (ϳ10 7 V/m).…”
Section: Introductionmentioning
confidence: 99%
“…Shallow cavities 8. 5 to 9.0 mm in diameter and about 200 p m center depth were machined into the, inner surface of each of the end caps. The end caps were machined from brass, phosphor bronze, and acrylic.…”
Section: Introductionmentioning
confidence: 99%