Claims
- 1. A methof for determining the size distribution of wood chip material of varying dimensions for the manufacture of cellulose pulp, including the steps of: distributing the material on a conveying surface so that a substantial majority of the chips are arranged with a shortest dimsnsion of said varying dimensions at substantially right angles to the conveying surface; advancing the conveyor and the materials thereon at a predetermined speed; determining the speed of the conveyor at predetermined times; subjecting the materials to light radiation in the range of 600-800 nanometers provided by at least one light source positioned above the conveying surface, optically registering the materials and obtaining a signal representative of a two dimensional configuration of the material, electronically processing and recording the signal over a number of predetermined two dimensional size classes, using a relation between the chip material width, length and thickness tgether with the processed signals for obtaining the volume of the material pieces, obtaining the size distribution of the chip material on one of a volume and weight basis over the number of predetermined size classes.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8401410 |
Mar 1984 |
SEX |
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Parent Case Info
This application is a continuation of application Ser. No. 822,415, filed Nov. 14, 1985, filed as PCT SE85/00118 on Mar. 14, 1985 published as WO85/04249 Sept. 26, 1985, now abandoned.
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939830 |
Haenke et al. |
Nov 1909 |
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3409187 |
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4288162 |
Sakamoto et al. |
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4514816 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
822415 |
Nov 1985 |
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