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1. WO2020194150 - PARTICLE COUNTING APPARATUS, SYSTEMS AND METHODS

Publication Number WO/2020/194150
Publication Date 01.10.2020
International Application No. PCT/IB2020/052582
International Filing Date 20.03.2020
IPC
G01N 15/14 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
10Investigating individual particles
14Electro-optical investigation
A01C 7/10 2006.01
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
CPLANTING; SOWING; FERTILISING
7Sowing
08Broadcast seeders; Seeders depositing seeds in rows
10Devices for adjusting the seed-box
G01N 21/85 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
85Investigating moving fluids or granular solids
G01N 15/00 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
G01N 15/10 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
10Investigating individual particles
CPC
A01C 7/105
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
CPLANTING; SOWING; FERTILISING
7Sowing
08Broadcast seeders; Seeders depositing seeds in rows
10Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
102Regulating or controlling the seed rate
105Seed sensors
G01N 15/1459
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
10Investigating individual particles
14Electro-optical investigation, e.g. flow cytometers
1456without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
1459the analysis being performed on a sample stream
G01N 2015/0003
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
0003Determining electric mobility, velocity profile, average speed or velocity of a plurality of particles
G01N 2015/0046
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
0042Investigating dispersion of solids
0046in gas, e.g. smoke
G01N 2015/1075
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
10Investigating individual particles
1075Determining speed or velocity of a particle
G01N 2015/1486
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
10Investigating individual particles
14Electro-optical investigation, e.g. flow cytometers
1486Counting the particles
Applicants
  • PRECISION PLANTING LLC [US]/[US]
Inventors
  • PLATTNER, Chad
  • STEINER, Philip
Priority Data
62/822,65522.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PARTICLE COUNTING APPARATUS, SYSTEMS AND METHODS
(FR) APPAREIL, SYSTÈMES ET PROCÉDÉS DE COMPTAGE DE PARTICULES
Abstract
(EN)
In one embodiment a first light plane is generated across the passageway by a first LED emitter array. A corresponding photodiode receiver array detects particles passing through a first number of light channels comprising the first light plane. In a second embodiment a second light plane is generated across the passageway at 90 degrees from the first light plane and longitudinally offset from the first light plane by a second LED emitter array. A corresponding photodiode receiver array detects particles passing through a second number of light channels comprising the second light plane. The second light plane is capable of identifying particles in a third dimension that may go undetected when passing through the first light plane. The raw output signals generated by respective photodiodes is normalized, analyzed and characterized to differentiate between particles passing through light planes as individual particles or groups of overlapping particles to be separately counted.
(FR)
Selon un mode de réalisation de l’invention, un premier plan de lumière est généré à travers le passage par une première barrette d’émetteurs à DEL. Une barrette de récepteurs à photodiodes correspondante détecte des particules traversant un premier nombre de canaux de lumière comprenant le premier plan de lumière. Selon un mode de réalisation de l’invention, un deuxième plan de lumière est généré à travers le passage à 90 degrés par rapport au premier plan de lumière et décalé longitudinalement par rapport au premier plan de lumière par une deuxième barrette d’émetteurs à DEL. Une barrette de récepteurs à photodiodes correspondante détecte des particules traversant un deuxième nombre de canaux de lumière comprenant le deuxième plan de lumière. Le deuxième plan de lumière peut identifier des particules dans une troisième dimension qui peuvent ne pas être détectées lorsqu’elles traversent le premier plan de lumière. Les signaux de sortie bruts générés par les photodiodes respectives sont normalisés, analysés et caractérisés pour faire la différence entre les particules traversant les plans de lumière en tant que particules individuelles ou en tant que groupes de particules superposées à compter séparément.
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