Physical Quantity Detection Device
US-2018372520-A1 · Dec 27, 2018 · US
Fluid flow meter using thermal tracers
US9212939B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9212939-B2 |
| Application number | US-93573809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 2, 2009 |
| Priority date | Apr 2, 2008 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Fluid flows through a conduit. To measure flow speed the fluid is heated at a heating location in the conduit with a time-dependent heating strength. A speed of sound in fluid flowing in the conduit is measured at a plurality of sensing locations downstream from said heating location. The flow speed of the fluid is determined from a delay with which the time dependence is detected in the sound speeds measured at said sensing locations. In an embodiment a frequency of the variation of heating strength that is used to determine the flow speed is selected automatically dependent on the flow speed and/or other circumstances.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fluid meter, comprising: a conduit; a heater configured to heat fluid at a heating location in the conduit; sensors configured to remotely measure a local property of the fluid that is dependent on local temperature of the fluid in fluid flowing in the conduit at a plurality of sensing locations downstream from said heating location; a data processing circuit configured: to cause the heater to heat the fluid simultaneously using a plurality o…
Assignees
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Classifications
Physics · mapped topic
Physics · mapped topic
- G01F1/688Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9212939B2 cover?
- Fluid flows through a conduit. To measure flow speed the fluid is heated at a heating location in the conduit with a time-dependent heating strength. A speed of sound in fluid flowing in the conduit is measured at a plurality of sensing locations downstream from said heating location. The flow speed of the fluid is determined from a delay with which the time dependence is detected in the sound …
- Who is the assignee on this patent?
- Volker Arno Willem Frederik, Geers Leon Ferdinand Gerard, Blokland Huibert, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G01F1/688. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 15 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).