| 摘要 |
The invention is directed to a measuring apparatus for determining the degree of compaction of material for building dams, roads or the like after the material has been compacted with a suitable compaction machine. The measuring apparatus includes a vibrating drum which is equipped with a transducer for generating signals while the drum is run over the ground surface for which the degree of compaction is to be determined. In order to eliminate factors which impede evaluation of the signals emanating from the signal transducers, the drum is configured so that its contact surface with the ground surface is as restricted as possible. This can be achieved by reducing the width of the drum. |
