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US 2001/0032898 A1Published application
Refiner force sensor
AssigneesPulp and Paper Research Institute of Canada, Queen's University at Kingston, The University of British Columbia
InventorsAlan Henry Bankes, Peter Martin Wild, Daniel Ouellet
Life of this patent
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Abstract
This invention relates to a refiner force sensor for refiners used in the pulp and paper industry, to a refining apparatus, and to a method of measuring force acting on a refiner bar in a refiner.
Claims36
A force sensor for measuring force acting on a refiner bar of a refiner for producing or processing wood pulp, said force sensor comprising:
- a sensor body having a sensor head;
- and
- at least one sensor element in force transmission contact with the sensor body,
- wherein said at least one sensor element produces a signal indicative of the magnitude of force acting on a refiner bar of a refiner for producing or processing wood pulp.
1 more element
A method of measuring force acting on a refiner bar of a refiner for producing or processing wood pulp, the method comprising:
- providing a sensor body having a sensor head, the sensor head adapted to replace all or a portion of the refiner bar;
- disposing at least one sensor element in force transmission contact with the sensor body;
- refining wood particles or wood pulp in said refiner to produce wood pulp or refined wood pulp, such that force is applied to the sensor head and a signal indicative of the force is developed at said at least one sensor element, and
- evaluating the signal as a measure of the force applied to the sensor body.
1 more element
Dependencies are inferred from the claim text.