The design and performance of Love-wave sensors using cross-linked poly(methyl methacrylate) waveguides of thicknesses of 0.3 to 3.2μm on LiTaO3 substrates are described. It is found that this layer-substrate combination provides sufficient waveguidance and electrical isolation of the interdigital transducers from the liquid environment to achieve low acoustic loss and distortion. In biosensing...

We sketch a derivation of abstract scattering theory from the microscopic first principles defined by Bohmian mechanics. We emphasize the importance of the flux-across-surfaces theorem for the derivation, and of randomness in the impact parameter of the initial wave function—even for an, inevitably inadequate, orthodox derivation. Dedicated to Joel Lebowitz, with love and admiration, for his 70...

A Love wave humidity sensor is developed by using a multilayer structure consisting of PVA/SiO2 layers on an ST-90°X quartz substrate. The theoretical result shows that the sensor with such a two-layer structure can achieve a higher sensitivity and a smaller loss than the structures with a single polymer layer. Comparative experiments are performed for the sensor incorporating PVA/SiO2 layers a...

The effect of viscous liquid loading on SH-SAW devices on AlN=sapphire structure has been experimentally investigated. The sensitivity of the devices to liquid (glycerol=water mixtures) viscosity changes is measured to be approximate 8.2 10 9 m s=kg, which is only about 30% of that of commonly used quartz Love wave devices. This indicates that, when used for mass sensing in liquid, the AlN SHSA...

The coalescence of two neutron stars is an important gravitational wave source for LIGO and other detectors. Numerous studies have considered the precision with which binary parameters (masses, spins, Love numbers) can be measured. Here I consider the accuracy with which these parameters can be determined in the presence of systematic errors due to waveform approximations. These approximations ...

Abstract With amplitude ratio of two different types ground motion, the information phase velocity could be reflected in frequency-dependent assumption plane-wave propagation. In this paper, we test possibility determining local Love waves dispersion properties using transverse and strain measurement. seismic wave recording four-component borehole strainmeters built at Balun station Xinjiang, C...

This paper investigates the feasibility of site characterization via spectral analysis of horizontally-polarized shear (SH) waves as a means to lter the eeects of pore water for saturated soil conditions. Using a multi-layered wave propagation model to simulate the proposed testing connguration revolving around a torsionally vibrating loading plate, it is shown that the use of generalized Love ...