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Priority to FI914463ApriorityCriticalpatent/FI90918C/en
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Publication of FI914463ApublicationCriticalpatent/FI914463A/en
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Investigating Or Analysing Materials By Optical Means
(AREA)
Abstract
The object of the invention is a method for determination of the bark/wood ratio in a pulp sample, for example, in chips or bark pulp coming from a barking plant. The pulp being investigated is ground before the test with a grinder with a cutting blade to below 2 mm, preferably below 1 mm particle size, whereupon the sample is spread as an even layer on a light table where it is photographed with a video camera for image analysis, the mentioned ratio being determined by means of the brightness of the image relative to the calibrated value. <IMAGE>
FI914463A1991-09-241991-09-24
Determination of the bark / tree ratio of the mass from the sample
FI90918C
(en)
Optical Properties of Fruits and Vegetables to Serve the Automatic Selection within the Packing House Line (4) Delayed Light Emission as a Means of Automatic Selection of Tomatos