You need to provide a valid email address which will also be your username for the site. They are optimized for both strain controlled and stress controlled operation. The brookfield pvs is a coaxial cylinder, controlled shear rate rheometer used in applications under pressure at temperatures where sample boiloff is a problem. The rheometers working under controlled stress can work in shear mode by. Viscometry mode oscillation modemeasures viscosity as a function. Additionally, bohlins temperature control system offers rapid thermal equilibrium as well as extremely stable control. A bohlin gemini is the centerpiece of a complete, high performance, modular rheometer system, including a wide range of measurement geometries and accessories. Keywords bohlin, shear rate, stress, strain, rheometer. Bohlin cvo rheological measurement made easy 3 bohlin cvo.
Bohlin gemini controlled strain and stress rheometer from. The rstcps rheometer is great for cone and plate as well as plate to plate system for small volumes and wide shear rate ranges. Zero shear viscosity and yield stress can be determined. What is the difference between working with a shear stress imposed or working with a shear rate imposed on a rheometer. A rheometer is a precision instrument that contains the material of interest in a geometric configuration, controls the environment around it, and applies and measures wide ranges of stress, strain, and strain rate. Bohlin gemini an advanced rheometer system incorporating a new rotonetictm drivegeminitm is the first rheometer featuring malverns patent pending rotonetic technology, an adaptive control technology which is optimized for both strain and stress controlled operation. For this reason, rheology is also considered to be the study of stressstrain relationships in materials. Computer interface networkable, graphic video display, laboratory benchtop. Bohlin cvor digital rheometer allows strain, stress, or shear rate measurements to be performed using a single rheometer station.
434 716 968 502 1225 1454 1032 150 735 695 553 768 586 981 349 344 1469 570 781 1363 251 354 1246 588 565 1302 476 655 1258 389 19 250 1179 1353 840 667 388 1396 522 353 76