Patent ID: 6813935
Filing Date: 2004-11-09
Classification: G01N

Abstract:
A vibrational viscometer including:first and second distinct torsional resonators each comprising an inertial mass and a shaft; a nexus connecting the shafts of said first and second distinct torsional resonators, said first and second distinct torsional resonators being capable of vibration about a torsional axis in anti-phase, having a first vibrational node in the region of the nexus and at least a second vibrational node; a compliant support in the region of the first node, said compliant support at least partly surrounding said nexus; and a semi-rigid support in the region of the second node, said semi-rigid support comprising a support pin which is longitudinally rigid and torsionally compliant, said semi-rigid support being axially aligned with said torsional axis.