Measurement and regulation of paper stock concentration is of great importance in pulp and paper industry Deviations of concentration from the optimal value lead to deterioration of the product quality and can damage technological equipment of the factory. As a result a necessity of paper stock concentration measurement arises. In this article the improved rotational method of paper stock concentration measurement is examined, that is based on indirect measurement of concentration by viscosity. The influence of temperature on the measurement results was studied. The main sources of errors in concentration measurement by means of viscometer method were analyzed. A principle of improving accuracy of a paper stock rotational consistency meter is presented and a structural scheme of its realization is designed.
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