Acoustic wave H2S sensor comprising a polymer film comprising carboxylate functional groups and lead or zinc cations and manufacturing process
US11185887B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Sep 12, 2017 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | May 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An H2S sensor includes at least one acoustic wave transducer and a film having a polymer matrix. The polymer matrix includes carboxylate functional groups and lead or zinc cations. The film may have a thickness of between a hundred nanometres and a 2 microns The H2S sensor optionally includes an antenna to remotely interrogate the H2S sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.