A high temperature and shear rate capillary viscometer has been designed, constructed and recently commissioned. This device will be used to measure the viscosity of semi-solid metals under the high temperature and shear rate conditions, similar to those found in industry. Design criteria for the device included a requirement for a highly controllable temperature (±1oC) up to 650oC, capability ...

1. A modified falling ball viscometer (rolling ball viscometer) for blood and other humors is presented. It is capable of easily measuring flow properties at several stresses, as is required to define satisfactorily the properties of anomalous flow systems. At high shearing stresses, apparent specific viscosity values of 2.5 + are observed, corresponding to 2.2 +/-0.2 reported as possible with ...

Plasma viscosity has several advantages over the erythrocyte sedimentation rate as a measurement of an acute phase response of more than 24 hours' duration. A new capillary viscometer (Coulter Viscometer II), which gives an automated measurement of plasma viscosity, was compared with the selected manual method (Harkness viscometer) of the International Committee for Standardization in Haematolo...

The analysis of a new viscometer that takes the form of an oscillating plate, fabricated from silicon using the methods of micro-electro-mechanical-systems (MEMS) is considered. The instrument is designed principally for experimental use in the oil industry. The plate is 1.6mm wide, 2.4mm long, and 20μm thick. It is suspended from a 0.4mm thick support by 48 square cross-section legs, each of l...

High pressure viscosity data are necessary to complement fluid characterization, but their accurate determination is always a challenge due the lack of these data. This work focuses on characterizing four alcohols (1-propanol, 2-propanol, 1-pentanol and 2-pentanol) through measurements using two different equipment: falling body viscometer vibrating wire viscometer. Both techniques can measure ...

Blood viscosity was studied during extracorporeal circulation by means of a cone in cone viscometer. This rotational viscometer provides sixteen kinds of shear rate, ranging from 0.05 to 250.2 sec-1 • Merits and demerits of the equipment were described comparing with the capillary viscometer. In experimental study it was well demonstrated that the whole blood viscosity showed the shear rate dep...

New design of a viscometer based on the s tokes viscosity measurement method is proposed. The principle operation this viscosimetr use ball periodic alternated movement in horizontally positioned cuvette that filled with test liquid. appears under fluence magnetic field created by two electromagnets. Registration inside carried out using an optoelectronic pair. A distinctive feature proposed co...