Method for testing samples with a rheometer and rheometer

摘要

Method for examining samples with a rheometer, in which a measuring shaft (3 ') carrying a first measuring part (1a) is rotated by a motor (2') for rotation, the sample being moved into one of the first measuring part (1a) and a further measuring part (1b) formed measuring gap (19) is introduced and the two measuring parts (1a, 1b) are rotated relative to each other and wherein with a moment detector (30 ') the torque of the motor (2') and with a first measuring unit (7 '. ) the normal force exerted by the sample on the first measuring part (1a) is determined, characterized in that the first measuring part (1a) and the further measuring part (1b) mounted on a further measuring shaft (3) are rotated, oscillated or stopped independently of each other at a predetermined speed for the examination of the sample. - That at the same time or in short successive intervals during the same measuring operation with the first torque detector (30 ') and the first measuring unit (7') the torque and the normal force and with a further measuring unit (7) and another torque detector (30) the normal force exerted by the sample on the further measuring part (1b) or the further measuring shaft (3) and the torque exerted on the further measuring shaft (3) by its own further motor (2) rotating this measuring shaft (3) be, and -that these simultaneously determined measured values are fed to a common, evaluation.