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1. US20220221380 - DUCT SENSOR WITH DUCT PROBE FOR SAMPLING A FLUID FROM A DUCT AND METHOD OF OPERATION

Office
États-Unis d'Amérique
Numéro de la demande 17613461
Date de la demande 19.05.2020
Numéro de publication 20220221380
Date de publication 14.07.2022
Type de publication A1
CIB
G01N 1/22
GPHYSIQUE
01MÉTROLOGIE; TESTS
NRECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES
1Echantillonnage; Préparation des éprouvettes pour la recherche
02Dispositifs pour prélever des échantillons
22à l'état gazeux
G01N 15/02
GPHYSIQUE
01MÉTROLOGIE; TESTS
NRECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES
15Recherche de caractéristiques de particules; Recherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
02Recherche de la dimension ou de la distribution des dimensions des particules
G01N 15/06
GPHYSIQUE
01MÉTROLOGIE; TESTS
NRECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES
15Recherche de caractéristiques de particules; Recherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
06Recherche de la concentration des suspensions de particules
CPC
G01N 15/06
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
06Investigating concentration of particle suspensions
G01N 1/2247
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
1Sampling; Preparing specimens for investigation
02Devices for withdrawing samples
22in the gaseous state
2247Sampling from a flowing stream of gas
G01N 15/02
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
02Investigating particle size or size distribution
Déposants Sensirion AG
Inventeurs Nicolas MOELLER
Mark HORNUNG
Stefan THIELE
Patrick LEIDENBERGER
Stefan KOSTNER
Données relatives à la priorité 19176549 24.05.2019 EP
Titre
(EN) DUCT SENSOR WITH DUCT PROBE FOR SAMPLING A FLUID FROM A DUCT AND METHOD OF OPERATION
Abrégé
(EN)

A duct probe (20) for sampling a fluid from a main fluid flow (Fm) in a duct (10) defines an elongated supply channel (21) n elongated discharge channel (22). The supply channel has at least one inflow opening (23) for diverting a partial flow (Fp) from the main fluid flow into the supply channel, and the discharge channel has at least one outflow opening for returning the partial flow from the discharge channel into the main fluid flow after it has passed an environmental sensor (30). The duct probe further comprises at least one compensation opening (26) that connects the supply channel and the discharge channel in a region that is located between their closed and open ends. By the presence of the compensation opening (26), a jet flow (Fj) is created, which acts to reduce a pressure difference between the supply channel and the discharge channel when the duct probe is exposed to the main fluid flow (Fm).


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