How to measure viscosity full#

The Helipath system is a special stand that incorporates a motor that can slowly drive the head of the viscometer down. This accessory enables the viscometer to take measurements of soft solids such as pastes, creams and ointments. The ULA is nothing more than a large concentric cylinder designed specifically for bringing lower viscosity liquids into the measuring range of the viscometer. The accessory was, as its name suggests, originally designed for measuring samples of limited quantity however due to its fairly narrow clearances the system operates in a degree of defined shear - a valuable capability of you wish to perform viscosity / shear rate profiles on a sample. In the small sample adapter a small sample (typical only 5 - 10ml) is sheared between the moving inner cylinder and stationary outer cylinder or chamber. The Small Sample Adapter is a concentric cylinder measuring system, often know as a coaxial or 'cup and bob' system. The dip-in spindle is suitable for comparative testing of the viscosity of free-flowing fluids. A sample of 400 - 600ml in a suitable container is placed under the viscometer which is then lowered to dip the spindle into the sample up to an immersion mark on the spindle shaft. Labelled as LV or RV spindle sets, these comprise simple shafts ending in a disk or cylinder. Here is a brief introduction to the most popular arrangements: Dip-in LV Spindles & RV Spindles

Various spindle designs can be employed, depending on the nature of the sample and the requirements. There are several models of viscometer available from Brookfield but the majority operate in the same manner: the viscometer motor rotates the spindle at a defined speed (measured in rpm) or shear rate and the viscometer measures the resistance to rotation and reports a viscosity value. More details at our Rheology Lab site at get in touch.Д«rookfield viscosity usually refers to a viscosity measurement performed with a Brookfield Viscometer, sometimes refered to as a Brookfield viscosimeter.

How to measure viscosity full#

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