| 摘要 |
The wire stretching indicators (21) are coupled together in a Wheatstone bridge to monitoring occurring deformations in the elastically deformable parts (16,16'), converting the deformations to electrical signals, which provide information covering force stresses on the bearer (5) and the movable part, e.g. a tool holder. The bearer incorporates three different groups of wire stretching indicators for a coordinate system three different axes, i.e. a first group (21x) for the X axis, a second group (21y) for the Y axis and a third group (21z) for the Z axis. Each group incorporates four space-wise sepd. indicators, each with two wire sets. The wires extend at approximately 45 deg. to the actual force axes and of which the one has its wires compressed during redn. of the electrical resistance in them, and vice versa, when the bearer elastically deformable parts, and thereby the indicators, are subjected to deformations. |
