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:
Feb. 09, 1993
Filed:
Nov. 01, 1991
Applicant:
Inventors:
Tatsuo Igushi, Kyoto, JP;
Yoshiaki Togawa, Kyoto, JP;
Assignee:
Horiba, Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356336 ; 356343 ;
Abstract
An apparatus for measuring a wide range of particle sizes in of a sample fluid with two separate light sources is provided. The individual light sources can be compensated to take into account any variations in transmission factors through the sample fluid prior to calculating the particle size distribution. Additionally, any fluctuations in the light source can also be measured to provide a compensation factor for the measured light intensities.