| 摘要 |
<p>The tool has three transmitters and three receivers so that three transmitter pairs of receivers are formed in such a manner, that every receiver receives the signal assigned to it. The signals used are preferably ultrasonic, but may also be light signals, and act as a guide for the precise alignment of the tool, e.g. in terms of drilling position and depth : An independent claim is included for a device for the recognition of the adjustment of a tool of a hand-guided machine tool.</p> |
