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For leaky surface acoustic wave generation, a Love wave sensor uses a single-phase unidirectional transducer mounted on a piezoelectric substrate. On 36. degree, a high frequency surface acoustic wave transducer, for example, allows effective excitation of shear-horizontal waves. The sensor can be detected at the pg/mm. sup. 2 level and can perform multi-analyte detection in real-time.
Source link: https://www.osti.gov/biblio/1126694
For leaky surface acoustic wave generation, the Love wave sensor uses a single-phase unidirectional transducer on a piezoelectric substrate. A high-frequency surface acoustic wave transducer, as an example, allows efficient excitation of shear-horizontal waves on 36. degree. The sensor can be programmed to detect at the pg/mm. sup. 2 level or perform multi-analyte detection in real time.
Source link: https://www.osti.gov/biblio/1084224
The acoustic-wave sensor includes a surface-acoustic-wave unit, a flexible-plate-wave device, an acoustic-wave converter, an acoustic-wave unit, an acoustic-wave unit, an acoustic-wave system, a flexural-plate-mode device, an acoustic-wave amplifier, an acoustic-wave device, acoustic-wave sensor, a sensor, acoustic-wave sensor, acoustic-wave sensor, acoustic-wave sensor, acoushear-wave sensor, acoustic-wave device, acoustic-wave module, acoustic-wave-wave acoustic-wave-wave-wave-plate-wave-wave device, an acoustic-wave-plate-wave-wave-wave acoustic-wave-table-mode-mode unit, an acoustic-mode device, or acoustic-mode-table A sensing film for sorbing a few units of the photoresist-stripping agent is included in the sensing region, thereby altering or shifting a frequency of oscillation of an acoustic wave propagating through the sensing zone for indicating an ambient concentration of the agent.
Source link: https://www.osti.gov/biblio/871788
At least one acoustic-wave device in contact with the petroleum-based composition for measuring or detecting constituents that solidify on cooling of the petroleum-based composition below a cloud-point temperature. The acoustic-wave device can be a thickness-shear-mode unit, a surface-acoustic-wave unit, an acoustic-plate-mode unit, or a flexural plate-wave unit. In addition, measurements with the acoustic-wave sensor apparatus can be carried out off-line by using a sample with a particular petroleum-based composition; or in-situ with the petroleum-based composition contained within a pipeline or storage tank.
Source link: https://www.osti.gov/biblio/871118
The chemical species is absorbed by analyzing changes in both the speed and the attenuation of an acoustic wave traveling through a thin film into which the chemical species is sorbed.
Source link: https://www.osti.gov/biblio/868105
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