| 摘要 |
<p>MULTI-AXIS LOAD CELL A load cell capable of measuring forces along three orthogonal axes as well as bending moments about each of these axes is disclosed which is of simple construction while being capable of measuring accurately a wide range of dynamic working loads. The load cell consists of a housing drivingly connected to a central hub member by means of a cross pattern formed by pairs of compliant cantilever bars, each bar slidable in the housing along its axis so as to not be capable of resisting transverse loads along respective orthogonal axes in the plane transverse to the load cell. Displacements of the hub relative to the housing are measured by four sets of LVDT transducers, each set measuring relative lateral movement parallel to each of the orthogonal axes on opposing points radially displaced from the central axis of the load cell. These displacements are used to generate signals corresponding to the force components along each of the orthogonal axes as well as bending moments about each of these axes.</p> |
