Patent US6522380B2 successfully refreshed from Google Patents.
Patent EP0431394A2 successfully refreshed from Google Patents.
EP0431394A2
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EP
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Method and apparatus for gas analysis
Assignee: Siemens AG
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Filing: 1990-11-20
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Granted: —
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Expires: 2010-11-20
Abstract
Abstract In the method of measurement, the gas to be determined is periodically heated in a measurement chamber. The periodic rise in pressure occurring in the measurement chamber is converted into an electrical alternating signal whose amplitude depends on the thermal conductivity of the gas. The method and the appropriately constructed measuring device are used, in particular, for determining the proportions of hydrogen or noble gases in nitrogen. <IMAGE>
Inventors
- 👤 Eckhard Aidam
- 👤 Günter Dipl.-Ing. Marcaux
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:03
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/18; G01N7/00
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