Abrégé

a collecting unit to provide an electric current by collecting charges from the charged particles by diffusion of the charged particles, the electric current being indicative of number density of aerosol particles of the aerosol sample flow. The internal pressure of the collecting unit is maintained at a reduced value in order to provide a flat response of the electric current for detecting nanoparticles of different sizes.

Classes IPC  ?

• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement
• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01N 15/06 - Recherche de la concentration des suspensions de particules

Abrégé

wherein the control unit and the control valve are arranged to adjust flow rate of the second dilution gas flow according to an inlet pressure of the aerosol sample flow, so as to keep the dilution factor of the diluting apparatus substantially independent of the inlet pressure.

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement

Abrégé

p2PSETippp).

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• F01N 11/00 - Dispositifs de surveillance ou de diagnostic pour les appareils de traitement des gaz d'échappement
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01N 27/68 - Utilisation de la décharge électrique pour ioniser un gaz
• G01N 15/00 - Recherche de caractéristiques de particulesRecherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux

Abrégé

DG202000).

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01N 1/38 - Dilution, dispersion ou mélange des échantillons

Abrégé

an outlet channel for guiding charged particles from the charging space to the detector.

Classes IPC  ?

• H01T 19/04 - Dispositifs prévus pour la décharge corona munis d'électrodes pointues
• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement
• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01N 15/00 - Recherche de caractéristiques de particulesRecherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux

Abrégé

A particle measuring apparatus (200, 500) comprises: - a charging unit (CUNIT1) to form charged particles (P2) from aerosol particles (P1) carried by an input flow (FG2), and - a particle detector (DET1) to provide an electric current (lp(t)) by collecting the charged particles (P2), wherein the charging unit (CUNIT1 ) in turn comprises: - a counter-electrode (ELECO) having a substantially hemispherical inner portion to define a charging space (SPC1), - an inlet channel (CH1 ) for guiding aerosol particles (P1) into the charging space (SPC1), - a corona electrode (ELEC3) to form charged particles (P2) from the aerosol particles (P1) by generating a corona discharge in the charging space (SPC1), and - an outlet channel (CH2) for guiding charged particles (P2) from the charging space (SPC1).

Classes IPC  ?

• G01N 27/70 - Utilisation de la décharge électrique pour ioniser un gaz et mesure de l'intensité ou de la tension électriques
• G01N 15/06 - Recherche de la concentration des suspensions de particules
• H01T 19/00 - Dispositifs prévus pour la décharge corona
• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement

Abrégé

A particle measuring apparatus (500), comprises: - a distributor unit (300) arranged to provide a first partial flow (FG1) and a second partial flow (FG2) by separating the second partial flow (FG2) from an input flow (FG0), - a particle collecting unit (100) to collect particles (P1) from the first partial flow (FG1) by using a first filter (FIL1), and - a particle monitoring unit (200) to form charged particles (P2) by charging particles (P1) carried by the second partial flow (FG2), and to provide an electric current (Ip(t)) by collecting the charged particles (P2).

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01N 5/00 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide
• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement

Abrégé

A particle measuring apparatus (500) comprises: - a distributor unit (300) arranged to provide a first partial flow (FG1) and a second partial flow (FG2) by separating the second partial flow (FG2) from an input flow (FG0), - a particle collecting unit (100) to collect particles (P1) from the first partial flow (FG1) by using a first filter (FIL1), and - a particle monitoring unit (200) to form charged particles (P2) by charging particles (P1) carried by the second partial flow (FG2), and to provide an electric current (Ip(t)) by collecting the charged particles (P2).

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01N 5/00 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide

Abrégé

A particle measuring apparatus includes a distributor unit arranged to provide a first partial flow and a second partial flow by separating the second partial flow from an input flow, a particle collecting unit to collect particles from the first partial flow by using a first filter, and a particle monitoring unit to form charged particles by charging particles carried by the second partial flow, and to provide an electric current by collecting the charged particles.

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01M 15/10 - Test des moteurs à combustion interne par contrôle des gaz d'échappement
• G01N 15/00 - Recherche de caractéristiques de particulesRecherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux

Abrégé

A particle measuring apparatus includes a distributor unit arranged to provide a first partial flow and a second partial flow by separating the second partial flow from an input flow, a particle collecting unit to collect particles from the first partial flow by using a first filter, and a particle monitoring unit to form charged particles by charging particles carried by the second partial flow, and to provide an electric current by collecting the charged particles.

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules

Produits et services

Measuring, monitoring, calculating, and analysing apparatus and instruments; particle sizing apparatus and instruments; particle counting apparatus and instruments; instruments and apparatus for measuring particle size distribution and concentration; instruments and apparatus for performing chromatography, for the measurement of weight, size, shape, structure, concentration and characteristics of particles; instruments and apparatus performing optical image analysis, for the measurement weight, size, shape, structure, concentration and characteristics of particles; parts and fittings for the aforesaid goods; computer software and hardware for controlling and operating all of the aforesaid goods and for analysing measurements made by all of the aforesaid goods.

Produits et services

Measuring apparatus for measuring and analyzing particle concentration and particle size distribution and spare parts thereof; measuring apparatus and measuring sensors for measuring combustion exhaust gases; impactors for measuring particle concentration and particle size distribution; aerosol monitors for measuring particle concentration and particle size distribution; sampling apparatus for measuring and analyzing particle concentration and particle size distribution; computer programs and software for measuring and analyzing particle concentration and particle size distribution; diode chargers for particle measurement apparatus; diluters for particle measurement apparatus; low pressure pumps for sampling and testing as parts of particle measurement apparatus

Abrégé

In the method, for collecting and diluting a gaseous sample disposed at a temperature substantially higher than the normal temperature from a sample space (2), a flow of sample is collected into a sampling tube (3); the flow of sample is introduced from the sampling tube into a sample channel (8) formed by a gas permeable first jacket (7); dilution gas is introduced into a dilution gas space (10) formed by a second jacket (9) enclosing the first jacket and connected by its end to the sampling tube, and further from it, through the first jacket into the sample channel; and heat is conducted from the sample space (2) into the dilution gas space (10) for warming up the dilution gas that comes into contact with the sampling tube (3). According to the invention, in the method, a substantially laminar protection flow, which encloses the flow of sample being released from the sampling tube (3) into the sample channel (8) and is disposed longitudinally to the sample channel, is formed from the warmed up dilution gas.

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux

Produits et services

Checking (supervision) apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; magnetic data carriers, recording discs; data processing equipment and computers; measuring apparatus for measuring and analyzing particle concentration and particle size distribution and spare parts thereof; measuring apparatus and measuring sensors for measuring combustion exhaust gases; impactors for measuring particle concentration and particle size distribution; aerosol monitors for measuring particle concentration and particle size distribution; sampling apparatus for measuring and analyzing particle concentration and particle size distribution; computer programs and software for measuring and analyzing particle concentration and particle size distribution; diode chargers for particle measurement apparatus; diluters for particle measurement apparatus; low pressure pumps as parts of particle measurement apparatus. Maintenance and repair; installation services; maintenance, repair and installation services of measuring and monitoring apparatus. Education; providing of training; training services related to installation, maintenance and repair of measuring and monitoring apparatus; implementation training of measuring and monitoring apparatus. Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software in the field of measuring technology; updating services of computer programs and software related to measuring technology.

Produits et services

Measuring apparatus for measuring and analyzing particle concentration and particle size distribution and spare parts thereof; measuring apparatus and measuring sensors for measuring combustion exhaust gases; impactors for measuring particle concentration and particle size distribution; aerosol monitors for measuring particle concentration and particle size distribution; sampling apparatus for measuring and analyzing particle concentration and particle size distribution; computer programs and software for measuring and analyzing particle concentration and particle size distribution; diode chargers for particle measurement apparatus; diluters for particle measurement apparatus; low pressure pumps for sampling and testing as parts of particle measurement apparatus Maintenance, repair and installation services of measuring and monitoring apparatus for measuring and analyzing particle concentration and particle size distribution [ training services related to installation, maintenance and repair of measuring and monitoring apparatus for measuring and analyzing particle concentration and particle size distribution; implementation training in the field of measuring and monitoring apparatus for measuring and analyzing particle concentration and particle size distribution ] Scientific and technological services and research and design relating to measuring and monitoring apparatus for measuring and analyzing particle concentration and particle size distribution, namely, scientific research, design, and development of measuring and monitoring apparatus for measuring and analyzing particle concentration and particle size distribution; industrial analysis and research services related to measuring and monitoring apparatus for measuring and analyzing particle concentration and particle size distribution; [ design and development of computer hardware and software for measuring and analyzing particle concentration and particle size distribution; updating services of computer programs and software for measuring and analyzing particle concentration and particle size distribution ]

Abrégé

A device and a method for diluting a sample are disclosed. A sample is first diluted by a porous tube type diluter configuration. Then the diluted flow is further diluted by a ejector type diluter configuration. Further a heat exchange based on serrature heat exchange elements inside said porous tube type diluter configuration is disclosed.

Classes IPC  ?

• G01N 1/38 - Dilution, dispersion ou mélange des échantillons
• G01N 1/00 - ÉchantillonnagePréparation des éprouvettes pour la recherche