Piezoelectrically actuated ejector using PMN-PT single crystal

Kwok Ho Lam; H. L.W. Chan; H. S. Luo; Q. R. Yin; Z. W. Yin

doi:10.1016/j.sna.2005.01.003

Piezoelectrically actuated ejector using PMN-PT single crystal

Kwok Ho Lam, H. L.W. Chan, H. S. Luo, Q. R. Yin, Z. W. Yin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

25 Citations (Scopus)

Abstract

A piezoelectric fluid ejector has been fabricated using a Pb(Mg1/3Nb2/3)O3-0.35PbTiO3(PMN-PT) single crystal ring. The design of the ejector is based on resonant modes of a flextensional transducer that is constructed by bonding a PMN-PT ring to a thin circular metal membrane with a small orifice at the centre. The fluid is placed, at atmospheric pressure, behind one face of the membrane. By applying an appropriate voltage to the PMN-PT ring, a continuous or drop-on-demand ejection of ink or water can be achieved. With the PMN-PT single crystal as the driving element, the ejector has a very high axial displacement and can be driven at a low voltage. The performance of the PMN-PT single crystal ejector has been compared with the ejector fabricated using PZT ceramics and is formed to have better performance.

Original language	English
Pages (from-to)	197-202
Number of pages	6
Journal	Sensors and Actuators, A: Physical
Volume	121
Issue number	1
DOIs	https://doi.org/10.1016/j.sna.2005.01.003
Publication status	Published - 31 May 2005

Keywords

Piezoelectric ejector
PMN-PT single crystal

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

More information

10.1016/j.sna.2005.01.003

Cite this

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abstract = "A piezoelectric fluid ejector has been fabricated using a Pb(Mg1/3Nb2/3)O3-0.35PbTiO3(PMN-PT) single crystal ring. The design of the ejector is based on resonant modes of a flextensional transducer that is constructed by bonding a PMN-PT ring to a thin circular metal membrane with a small orifice at the centre. The fluid is placed, at atmospheric pressure, behind one face of the membrane. By applying an appropriate voltage to the PMN-PT ring, a continuous or drop-on-demand ejection of ink or water can be achieved. With the PMN-PT single crystal as the driving element, the ejector has a very high axial displacement and can be driven at a low voltage. The performance of the PMN-PT single crystal ejector has been compared with the ejector fabricated using PZT ceramics and is formed to have better performance.",

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AU - Yin, Z. W.

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Piezoelectrically actuated ejector using PMN-PT single crystal

Abstract

Keywords

ASJC Scopus subject areas

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