Self-supporting thin-film filament detector, process for its manufacture and its application to gas detection and gas chromatography
US5549870A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 28, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Nov 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D3/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Detector of the filament type for determining a static or dynamic charactstic of an ambient medium, constituted by a resistive component intended to be heated by the Joule effect in the medium, and an interface region suitable for reacting with the medium by a physico-chemical process with an effect, depending on the characteristic to be determined, on the electrical characteristic of the interface region, in which there is a supporting member through which there is at least one aperture and at least one filament including the resistive component, composed of one or more thin films and a central portion located in the aperture and end portions via which the central portion is connected to the supporting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.