| 摘要 |
To determine the consistency of a substance, using a penetrometer, a sample of the substance is placed on a support (18). A calibration probe is moved downwards to strike the substance from above to achieve a given speed within the sample mass. The vertical force is measured, directed towards the bottom of the sample on its support, at least at a given time during the probe movement. To determine the consistency of a substance, the value of the vertical force is measured when the probe has moved fully along its path. The variations in the force are also measured as the probe moves wholly within the sample. The sample is held within a container of a given volume to take the sample and the probe, without prior mechanical constraints before measurement. An Independent claim is included for an apparatus to measure the consistency of a substance, with a motor to drive the probe downwards under electronic control which set the probe movement path and its speed into the sample. The moving sample support has a plate to carry the sample container, and a force meter (28) is under it. |
