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Rheometer |
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rheometer [rē′äm·əd·ər]
(engineering) An instrument for determining flow properties of solids by measuring relationships between stress, strain, and time. Rheometer an instrument for measuring the flow of a viscous fluid. In the USSR, the term is applied to a type of rate-of-flow meter that measures the volume flow of a gas. The operation of such a rheometer is based on the measurement of the pressure drop across a constriction in the pipe through which the gas flows; the constriction may be in the form of an orifice or capillary tube. The pressure drop is a single-valued function of the flow rate of the gas and is measured by a differential manometer, whose scale is generally marked in units of gas flow, such as cm3/min or liters per hour (l/hr). Such rheometers are used for measuring flow rates of up to 104l/hr in industrial and laboratory installations. For example, they are used in equipment for the chlorination of water and in devices for the quantitative analysis of the composition of gases. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | In this study, we carry out a non-isothermal viscoelastic flow simulation of polymer melts in a cone-and-plate and a parallel plate rheometer and attempted to quantitatively evaluate the effects of protruding part size on the measurement of rheological data. Malvern Instruments demonstrated the capabilities of Kinexus, the company's intelligent new rotational rheometer platform, at the 5th International Symposium on Food Rheology and Structure (IFRS 2009). com [ILLUSTRATION OMITTED] New RS Portable Rheometer operates in the lab, on the production floor and in the field and can be used by multiple operators. |
Rheometer |
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