| 摘要 |
The invention is based on an electric power tool (10) comprising a region (50) with ultrasonic excitation for a tool (60) that can be driven in a linear and/or oscillating manner, with a drive unit (80) for ultrasonic excitation, an electronics unit (200) for applying at least controlling and/or regulating signals to the drive unit (80), as well as an operating voltage unit (90), wherein the drive unit (80) comprises at least one ultrasonic excitation actuator (100), which during operation is electrically supplied by the operating voltage unit (90) and is controlled and regulated by the electronics unit (200), wherein a device (300) is provided for outputting an information signal, which can be output on the basis of at least one operating parameter of the electric power tool (10). It is proposed that the device (300) is formed for the purpose of varying frequency and/or amplitude of the information signal on the basis of one or more current operating parameters. |
