| 摘要 |
<p>PURPOSE:To simplify inspecting work by providing a low-seismic-intensity sensor having remotely resetting mechanism and a high-seismic intensity detecting sensor whose locked state is remotely released and working state is remotely released. CONSTITUTION:When a shock wave is generated by the contact of passengers and cargoes to be carried and a microswitch 7 is turned ON by the vibration and the fall of a weight 6 of a low-seismic-intensity detecting sensor 1, a lock- releasing signal 21 is inputted into an electromagnet 19. Since the continuing time of the shock wave is short at this time, the shock wave has disappeared already. In this way, the seismic wave and the artificial shock wave are discriminated, and the occurrence of earthquake is sensed accurately, and the detector is operated with good sensitivity. Therefore, the erroneous control and operation due to the artificial shock wave are not performed. Since the low-seismic- intensity detecting sensor 1 and a high-seismic-intensity sensor 2 are remotely reset after the control and operation caused by the occurrence of the earthquake, the inspecting work by an inspecting person after the earthquake is simplified.</p> |
