| 摘要 |
The sensor monitors a protection field between an upper tool (11) and a lower tool (13) of a machine. An opening gap (17) between the upper and lower tools or between the upper tool and a work piece is closed. An interference signal is generated in case of interference of the field, where expansion of the field during working motion is less than fifty percent of the maximum monitorable field of view from the sensor. An independent claim is also included for a method for protecting a machine. |
