Proportional regulation of viscosity of substances - with admixture of agents to modify viscosity

摘要

The proportionality factor of regulation is adjusted as a function of the nominal valve of viscosity in inverse proportion to the slope of the characteristic of viscosity as a function of concentration. The control deviation is conveyed to an amplifier to which a controller with a proportional action is connected at the output side. The controller regulates admixture of the agent to the substance. The gain of the amplifier is variable as a function of the nominal value. The amplifier can have connected to it on the output side a two-step controller which controls a solenoid valve positioned in a feed pipe for admixture of the agent to the substance.