Integrated sensing platform and method for improved quantitative and selective monitoring of chemical analytes in both liquid and gas phase
US6076406A · kind A · utility
11Cited by
7References
11Claims
0Family size
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Key dates
| Filing date | Mar 25, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Mar 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0423
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
By measuring two or more physical parameters of a thin sensing film which are altered when exposed to chemicals, more effective discrimination between chemicals can be achieved. In using more than one sensor, the sensors are preferably integrated on the same substrate so that they may measure the same thin film. Even more preferably, the sensors are provided orthogonal to one another so that they may measure the same portion of the thin film. These provisions reduce problems in discrimination arising from variations in thin films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.