Capped ceramic hydrophones

J. F. Tressler; A. Dogan; J. F. Fernandez; J. T. Fielding; K. Uchino; R. E. Newnham

Capped ceramic hydrophones

J. F. Tressler, A. Dogan, J. F. Fernandez, J. T. Fielding, K. Uchino, R. E. Newnham

Materials Research Institute (MRI)

Research output: Contribution to journal › Conference article › peer-review

28 Scopus citations

Abstract

Attaching specially shaped thin metal caps, each containing a shallow inner cavity, to the electroded surfaces of a piezoelectric ceramic will significantly enhance its hydrostatic sensitivity. The presence of the cavities allows the metal caps to convert a portion of the incident axial-direction stress into radial and tangential stresses of opposite sign, thus allowing the amplified d₃₁ and d₃₃ coefficients of the poled ceramic to now add together as opposed to subtracting from one another, thus magnifying the d_h. By capping a PZT-552 disk, the d_h can be amplified by a factor of nearly 100 and the g_h by a factor of almost 50. These particular hydrophones show the most promise for use in shallow water applications.

Original language	English (US)
Pages (from-to)	897-900
Number of pages	4
Journal	Proceedings of the IEEE Ultrasonics Symposium
Volume	2
State	Published - 1995
Event	Proceedings of the 1995 IEEE Ultrasonics Symposium. Part 1 (of 2) - Seattle, WA, USA Duration: Nov 7 1995 → Nov 10 1995

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

Cite this

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title = "Capped ceramic hydrophones",

abstract = "Attaching specially shaped thin metal caps, each containing a shallow inner cavity, to the electroded surfaces of a piezoelectric ceramic will significantly enhance its hydrostatic sensitivity. The presence of the cavities allows the metal caps to convert a portion of the incident axial-direction stress into radial and tangential stresses of opposite sign, thus allowing the amplified d31 and d33 coefficients of the poled ceramic to now add together as opposed to subtracting from one another, thus magnifying the dh. By capping a PZT-552 disk, the dh can be amplified by a factor of nearly 100 and the gh by a factor of almost 50. These particular hydrophones show the most promise for use in shallow water applications.",

author = "Tressler, {J. F.} and A. Dogan and Fernandez, {J. F.} and Fielding, {J. T.} and K. Uchino and Newnham, {R. E.}",

year = "1995",

language = "English (US)",

volume = "2",

pages = "897--900",

journal = "Proceedings of the IEEE Ultrasonics Symposium",

issn = "1051-0117",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "Proceedings of the 1995 IEEE Ultrasonics Symposium. Part 1 (of 2) ; Conference date: 07-11-1995 Through 10-11-1995",

}

TY - JOUR

T1 - Capped ceramic hydrophones

AU - Tressler, J. F.

AU - Dogan, A.

AU - Fernandez, J. F.

AU - Fielding, J. T.

AU - Uchino, K.

AU - Newnham, R. E.

PY - 1995

Y1 - 1995

N2 - Attaching specially shaped thin metal caps, each containing a shallow inner cavity, to the electroded surfaces of a piezoelectric ceramic will significantly enhance its hydrostatic sensitivity. The presence of the cavities allows the metal caps to convert a portion of the incident axial-direction stress into radial and tangential stresses of opposite sign, thus allowing the amplified d31 and d33 coefficients of the poled ceramic to now add together as opposed to subtracting from one another, thus magnifying the dh. By capping a PZT-552 disk, the dh can be amplified by a factor of nearly 100 and the gh by a factor of almost 50. These particular hydrophones show the most promise for use in shallow water applications.

AB - Attaching specially shaped thin metal caps, each containing a shallow inner cavity, to the electroded surfaces of a piezoelectric ceramic will significantly enhance its hydrostatic sensitivity. The presence of the cavities allows the metal caps to convert a portion of the incident axial-direction stress into radial and tangential stresses of opposite sign, thus allowing the amplified d31 and d33 coefficients of the poled ceramic to now add together as opposed to subtracting from one another, thus magnifying the dh. By capping a PZT-552 disk, the dh can be amplified by a factor of nearly 100 and the gh by a factor of almost 50. These particular hydrophones show the most promise for use in shallow water applications.

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M3 - Conference article

AN - SCOPUS:0029453554

SN - 1051-0117

VL - 2

SP - 897

EP - 900

JO - Proceedings of the IEEE Ultrasonics Symposium

JF - Proceedings of the IEEE Ultrasonics Symposium

T2 - Proceedings of the 1995 IEEE Ultrasonics Symposium. Part 1 (of 2)

Y2 - 7 November 1995 through 10 November 1995

ER -

Capped ceramic hydrophones

Abstract

All Science Journal Classification (ASJC) codes

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