Global Patent Index - EP 3874280 A1

EP 3874280 A1 20210908 - METHOD AND APPARATUS FOR DETERMINING A VELOCITY OF A FLUID STREAM IN THE REGION OF A PARTICLE SENSOR

Title (en)

METHOD AND APPARATUS FOR DETERMINING A VELOCITY OF A FLUID STREAM IN THE REGION OF A PARTICLE SENSOR

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG EINER GESCHWINDIGKEIT EINES FLUIDSTROMS IM BEREICH EINES PARTIKELSENSORS

Title (fr)

PROCÉDÉ ET DISPOSITIF DE DÉTERMINATION D'UNE VITESSE D'UN ÉCOULEMENT DE FLUIDE AU NIVEAU D'UN CAPTEUR DE PARTICULES

Publication

EP 3874280 A1 20210908 (DE)

Application

EP 19786968 A 20191011

Priority

  • DE 102018218590 A 20181030
  • EP 2019077651 W 20191011

Abstract (en)

[origin: WO2020088914A1] The invention relates to a method for determining a velocity of a fluid stream in the region of a particle sensor, in which the fluid stream moves along a flow path, the particle sensor has a particle charging device arranged at a first position of the flow path arranged for charging particles in the fluid stream and a measuring device arranged at a second position of the flow path located downstream relative to the first position for determining at least one electrical variable of the fluid stream, the method comprising the following steps: determining a first period of time which characterises an electrical variable of the particle charging device, determining by means of the measuring device a second period of time which characterises at least one electrical variable of the fluid stream, evaluating the second period of time in relation to den first period of time.

IPC 8 full level

G01P 5/20 (2006.01); G01F 1/7088 (2022.01); G01P 5/08 (2006.01)

CPC (source: EP US)

G01F 1/7088 (2013.01 - EP US); G01P 5/20 (2013.01 - EP); G01P 5/08 (2013.01 - EP)

Citation (search report)

See references of WO 2020088914A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

DE 102018218590 A1 20200430; CN 112997083 A 20210618; EP 3874280 A1 20210908; WO 2020088914 A1 20200507

DOCDB simple family (application)

DE 102018218590 A 20181030; CN 201980072685 A 20191011; EP 19786968 A 20191011; EP 2019077651 W 20191011