| 摘要 |
<p>The specification discloses a vibratory roller compactor provided with a device for sensing the resolved component of the vibratory motion at one or more positions thereon in one or more predetermined directions. At least one filtered electrical signal is derived from the sensed component representing an harmonic component thereof. The frequency of the harmonic components generally coincides with a lower harmonic of the fundamental vibratory frequency of the roller compactor. Apparatus sensitive to the electrical signals provides an indication of, or controls, the operation of the roller compactor. This enables more effective compaction of soil or the like.</p> |
