Passive wireless acoustic wave chemical sensor
US7205701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jan 15, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A passive wireless acoustic wave chemical sensor can be utilized for monitoring the concentration of an analyte in a substance such as blood. Such an acoustic wave chemical sensor can be configured to include one or more interdigital transducers and a selective coating formed upon a piezoelectric substrate. The coating and the interdigital transducer(s) can be used to convert electrical signal to surface waves thereof. An antenna can be connected to the acoustic wave device, wherein the antenna receives one or more input signals, which excite the acoustic device and to produce an output signal that is related to the concentration of the analyte of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.