Method for measuring properties of a particle distribution
AssigneeDekati Oy
InventorsJorma Keskinen, Marko Marjamäki, Mikko Moisio, Jyrki Ristimäki, Annele Virtanen
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Abstract
A method and a device for measuring properties of a particle distribution, in which a parameter relating to the mobility of the particles is measured at one measuring point (302) and a parameter relating to the aerodynamic size of the particles is measured at a second measuring point (305). By means of the measured parameters, at least one property of the particle distribution of the original flow is determined (306).
Claims17
A method for measuring properties of a particle distribution, the method comprising:
- guiding a particle flow to be analyzed to a first measuring point;
- detecting particles at the first measuring point;
- producing a parameter relating to a mobility of the particles and being proportional to the detected particles;
- leading at least part of the flow that has passed through the first measuring point to a second measuring point;
- measuring at the second measuring point a parameter relating to an aerodynamic size of the particles;
- and
- utilizing said parameter relating to the mobility and said parameter relating to the aerodynamic size to determine at least one property of the particle distribution of the particle flow.
A method for measuring properties of a particle distribution, the method comprising:
- guiding a particle flow to be analyzed to a first measuring point;
- measuring at the first measuring point a parameter relating to an aerodynamic size of the particles;
- leading at least part of the flow that has passed the first measuring point to a second measuring point;
- detecting particles at the second measuring point;
- producing a parameter relating to a mobility of the particles and being proportional to the detected particles;
- and
- utilizing said parameter relating to the mobility and said parameter relating to the aerodynamic size to determine at least one property of the particle distribution of the particle flow.
A device for measuring properties of a particle distribution, comprising:
- means for detecting particles at a first or a second measuring point;
- means for producing a parameter relating to a mobility of particles based on detected particles;
- means for measuring a parameter relating to an aerodynamic size of the particles at the first or the second measuring point;
- and
- means for computing at least one property of the original particle distribution by means of said parameter relating to the mobility of the particles and said parameter relating to the aerodynamic size.
Dependencies are inferred from the claim text.