The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2001
Filed:
Sep. 17, 1998
Applicant:
Inventors:
Keijo Lehmikangas, Puolanka, FI;
Lauri Löytynoja, Kajaani, FI;
Assignee:
Metso Field Systems Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 1/506 ; G01N 2/100 ; G01B 1/100 ;
U.S. Cl.
CPC ...
G01N 1/506 ; G01N 2/100 ; G01B 1/100 ;
Abstract
The invention relates to a method for measuring particles in suspension and a measuring instrument. In the solution the length of each fiber-like particle in suspension is one by one optically measured by a line camera in a thin equilateral capillary tube. The fiber-like particles in particular are imaged by two or more cameras in the capillary tube one or more times for measuring such properties as fiber thickness, wall-thickness and fibrillation.