Brookfield R/S CPS Rheometer Bedienungsanleitung PDF herunterladen (Seite 5)

BrookeldEngineeringLabs.,Inc. Page5 ManualNo.M08-218-B0212

I. General Description

This section has general information about the instrument and operating principles.

I.1 Use of the Rheometer

The R/S-CPS+ Rheometer is used in quality control, product development and research. The

instrument measures Newtonian and non-Newtonian uids, records ow curves and determines

the viscosity functions in steady shear ows.

I.2 MeasuringPrinciple

The R/S CPS+ Rheometer is a rotational, controlled-stress rheometer. Measuring cones and

measuring plates follow DIN (the German industrial standards organization) specication 53018.

The measuring substance lls the gap between the bottom measuring plate of the instrument and

the rotating measuring element.

The measuring drive developed for this instrument operates with a high-precision dynamic drive

system with optical encoder for absolute position measurement of spindle geometry.

The R/S CPS+ Rheometer measuring drive may be used for rotation tests with pre-set speed (shear

rate) and measurement of the torque imposed on the measuring element or in shear stress test

with control of a pre-set shear stress, to measure the shear deformation of the measured substance

by angular deection of the measuring element. When ow properties of plastic substances are

to be determined, the R/S CPS+ Rheometer can be used for shear stress tests that allow precise

measurement of the yield point without shearing the measured substance.

There are two measurement types:

• rotational measurement under controlled shear rate (CSR)

• rotational measurement under controlled shear stress (CSS)

Both CSR and CSS measurements can be carried out manually (without PC support) or with a

computer system and Rheo 3000 software.

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Brookfield R/S CPS Rheometer Bedienungsanleitung Seite 5