| 摘要 |
<p>PURPOSE:To provide an object detector capable of improving its sensitivity without being affected by the outside air temperature and surely prevent it from erroneously detecting an adjacent object. CONSTITUTION:An object detector is provided with a primary side coil 3 generating the prescribed magnetic flux and a secondary side coil 5 located at a prescribed interval from the primary side coil 3 and receiving the magnetic flux of the primary side coil 3. A vehicle 24 which is an object is located above between the primary side coil 3 and the secondary side coil 5, the change of the magnetic flux transmitted to the secondary side coil 5 is detected via the output voltage, the output change is detected by rectifiers 9, 13 via the amplitude, and the signal indicating that the vehicle 24 which is the object is located in the area is outputted.</p> |
