自記記録式回転振動型レオメーターの試作

Abstract

A coaxial cylindrical rheometer was developed for measuring viscoelastic properties of liquid by rotational and/or oscillational method. A feature of this apparatus is the fully automatic recording system which is achieved by means of the electric driving and detecting units.A torque-motor, instead of a torsion wire, is connected to inner cylinder and the deflection is measured by a special electromagnetic detector.A specially constructed sinusoidal voltage generator, of very low frequency below 1cps, is used for giving the oscillatory torque to inner cylinder.