SENSITIVITY ANALYSIS FOR LOVE MODE ACOUSTIC GRAVIMETRIC SENSORS

被引：82

作者：

WANG, Z ^{[1
]}

CHEEKE, JDN ^{[1
]}

JEN, CK ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,IMI,BOUCHERVILLE J4B 6Y4,PQ,CANADA

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 22期

关键词：

D O I：

10.1063/1.111976

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An approximate mass sensitivity formula for Love mode sensors is presented. The optimal thickness of the guiding layer, at which the sensitivity, S(m)f is maximum for a given frequency or wavelength is obtained. The (S(m)f)max can be expressed as -k0/rho1lambda1, where rho1 is the density, lambda1 is the wavelength of the surface transverse wave of the substrate, and k0 is a coefficient determined by the ratio of shear wave velocity and the ratio of density of the substrate to those of the overlayer. The (S(m)f)max of the Love mode device can be 20 times higher than that of the shear horizontal SH-surface acoustic wave device fabricated on the same substrate and operating at the same frequency.

引用

页码：2940 / 2942

页数：3

共 6 条

[1]

Auld B. A, 1976, ACOUSTIC FIELDS WAVE, V2, P277

[2]

Baer R. L., 1992, 1992 IEEE ULTR S P T, P293

[3]

Farnell G., 1972, EDS, V9, P35, DOI [10.1016/B978-0-12-395670-5.50007-6, DOI 10.1016/B978-0-12-395670-5.50007-6]

[4] A NOVEL LOVE-PLATE ACOUSTIC SENSOR UTILIZING POLYMER OVERLAYERS [J].

GIZELI, E ;

STEVENSON, AC ;

GODDARD, NJ ;

LOWE, CR .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1992, 39 (05) :657-659

[5] THEORETICAL COMPARISON OF SENSITIVITIES OF ACOUSTIC SHEAR-WAVE MODES FOR (BIO)CHEMICAL SENSING IN LIQUIDS [J].

KOVACS, G ;

VENEMA, A .

APPLIED PHYSICS LETTERS, 1992, 61 (06) :639-641

[6]

KOVACS G, 1992, 1992 ULTR S IEEE, P281

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