Global Patent Index - EP 1340052 A1

EP 1340052 A1 20030903 - FLOW SENSOR

Title (en)

FLOW SENSOR

Title (de)

STRÖMUNGSSENSOR

Title (fr)

CAPTEUR D'ECOULEMENT

Publication

EP 1340052 A1 20030903 (DE)

Application

EP 01997679 A 20011011

Priority

  • DE 0103906 W 20011011
  • DE 10058009 A 20001123

Abstract (en)

[origin: WO0242723A1] The invention relates to a flow sensor (5), in particular for analysing gas flows. Said sensor comprises a support body (10) and at least one sensor component (15) that is sensitive to the flow of a medium. At least certain sections of the sensor component (15) are separated from the support body (10) by a zone with poor thermal conductivity in relation to said support body (10). In addition, the zone with poor thermal conductivity (11, 11`, 14) is a porous silicon zone (11) or a porous silicon oxide zone (11`), or said zone with poor thermal conductivity (11, 11`, 14) is a recess (14) in the surface of the support body (10), over which the sensor component (15) is positioned on at least one substantially self-supporting strip (13) that extends over the recess (14). The inventive flow sensor (5) is particularly suitable for the angular detection of a gas flow.

IPC 1-7

G01F 1/684

IPC 8 full level

G01P 5/12 (2006.01); G01F 1/684 (2006.01); G01F 1/692 (2006.01)

CPC (source: EP US)

G01F 1/6845 (2013.01 - EP US)

Citation (search report)

See references of WO 0242723A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 0242723 A1 20020530; DE 10058009 A1 20020606; EP 1340052 A1 20030903; JP 2004514153 A 20040513; US 2004069626 A1 20040415; US 7040160 B2 20060509

DOCDB simple family (application)

DE 0103906 W 20011011; DE 10058009 A 20001123; EP 01997679 A 20011011; JP 2002544615 A 20011011; US 43254203 A 20030929