| 摘要 |
The invention relates to a loosening indicator for a nut/bolt (9), which is an indicator device to be installed in connection with the nut/bolt (9). The indicator device includes detector means (31, 31') for detecting the loosening of the nut/bolt, transmitter means (30), and power supply means (32) for indicating the loosening. The invention also relates to a corresponding system in the indication of loosening. |
