Analytic comparison of the sensitivities of bulk-wave, surface-wave, and flexural plate-wave ultrasonic gravimetric sensors
- 15 May 1989
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 54 (20) , 1976-1978
- https://doi.org/10.1063/1.101189
Abstract
We show that, for small added masses, the sensitivities of bulk‐mode, surface‐mode, and flexural plate‐mode gravimetric ultrasonic sensors are respectively 2/ρλ, ≊1/ρλ, and 1/2ρd, where ρ is the density of the sensor substrate material, λ is the wavelength, and d is the plate thickness of the flexural‐mode sensor.Keywords
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