EP 2539690 A1 20130102 - DEVICE AND METHOD FOR CALIBRATING A SCATTERED LIGHT METER
Title (en)
DEVICE AND METHOD FOR CALIBRATING A SCATTERED LIGHT METER
Title (de)
VORRICHTUNG UND VERFAHREN ZUM KALIBRIEREN EINES STREULICHTMESSGERÄTES
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR ÉTALONNER UN APPAREIL DE MESURE DE LUMIÈRE DIFFUSÉE
Publication
Application
Priority
- DE 102010002423 A 20100226
- EP 2011050032 W 20110103
Abstract (en)
[origin: WO2011104040A1] A calibrating device according to the invention for calibrating a scattered light meter designed to measure a particle concentration in motor vehicle exhaust gases has at least one scattering body (2) comprising a plurality of scattering centres (6) that have a defined size and defined mutual spacing. The scattering centres (6) are disposed such that when the scattering body (2) is irradiated with light (11) from a light source (10), said scattering body emits scattered light (20) having an intensity and distribution predetermined by the scattering body (2).
IPC 8 full level
G01N 21/47 (2006.01); G01N 21/53 (2006.01)
CPC (source: EP US)
G01N 21/4785 (2013.01 - EP US); G01N 21/53 (2013.01 - EP US)
Citation (search report)
See references of WO 2011104040A1
Citation (examination)
US 3942899 A 19760309 - LONGHENRY DAVID K
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
DOCDB simple family (publication)
DE 102010002423 A1 20110901; BR 112012021290 A2 20161025; CN 102762974 A 20121031; EP 2539690 A1 20130102; US 2013057860 A1 20130307; US 8937718 B2 20150120; WO 2011104040 A1 20110901
DOCDB simple family (application)
DE 102010002423 A 20100226; BR 112012021290 A 20110103; CN 201180011133 A 20110103; EP 11701770 A 20110103; EP 2011050032 W 20110103; US 201113581271 A 20110103