EP 3114456 A1 20170111 - DEVICE FOR DETERMINING THE PARTICLE SIZE AND/OR THE PARTICLE SHAPE OF A PARTICLE MIXTURE
Title (en)
DEVICE FOR DETERMINING THE PARTICLE SIZE AND/OR THE PARTICLE SHAPE OF A PARTICLE MIXTURE
Title (de)
VORRICHTUNG ZUR BESTIMMUNG DER PARTIKELGRÖßE UND/ODER DER PARTIKELFORM EINES PARTIKELGEMISCHES
Title (fr)
DISPOSITIF DE DÉTERMINATION DE LA TAILLE ET/OU DE LA FORME DE PARTICULES D'UN MÉLANGE DE PARTICULES
Publication
Application
Priority
- DE 202014100974 U 20140304
- EP 2015054088 W 20150226
Abstract (en)
[origin: WO2015132137A1] The invention relates to a device for determining the particle size and/or the particle shape of particles (T) which are guided through a measurement path (M) as a particle stream, comprising an illuminating device (4) for illuminating the particle flow in the measurement path (M) from the rear side, a camera (5) for capturing shadow projections of particles (T) illuminated by the illuminating device (4) from the front side, and an analyzing unit (7) which determines the particle size and/or particle shape of the recorded particles (T) using the captured images of the camera (5). The camera (5) is paired with a projection device (6) which is arranged on the front side of the measurement path (M) and positioned at a triangulation angle α relative to the camera (5) in order to project a light line (L) onto the particles (T) of the particle flow in the measurement path (M), said light line being captured by the camera (5). Depth information and/or geometric information on the detected particles (T) is ascertained from the shape of the light line (L) in the analyzing unit (7).
IPC 8 full level
G01N 15/02 (2006.01); G01B 11/25 (2006.01); G01N 15/14 (2006.01)
CPC (source: CN EP US)
G01B 11/22 (2013.01 - US); G01B 11/24 (2013.01 - US); G01N 15/0227 (2013.01 - CN EP US); G01N 15/1433 (2024.01 - CN EP US); G01N 15/1459 (2013.01 - CN EP US); G01N 2015/1497 (2013.01 - CN EP US)
Citation (search report)
See references of WO 2015132137A1
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 202014100974 U1 20150608; CN 106461526 A 20170222; EP 3114456 A1 20170111; JP 2017513012 A 20170525; US 2017067811 A1 20170309; WO 2015132137 A1 20150911
DOCDB simple family (application)
DE 202014100974 U 20140304; CN 201580010500 A 20150226; EP 15713384 A 20150226; EP 2015054088 W 20150226; JP 2016572894 A 20150226; US 201515122751 A 20150226