| 摘要 |
PURPOSE:To avoid an effect of the leaked magnetic flux to an earth magnetic sensor of an azimuth meter, by changing the single-wire wiring using the earth of a car body to the double-wire wiring and at the same time covering a part of the electric parts with a magnetic matter to ensure the magnetic shielding. CONSTITUTION:A magnetic shielding means is used so that an earth magnetic sensor receives no evil effect of the leaked magnetic flux given from an electrical parts having an energizing winding like an AC generator, an electromagnetic clutch, etc. For instance, the double-wire wiring is applied to avoid the body earth at the minus terminal side of an AC generator ACG. The minus terminals E are connected to each other via an exclusive earth wire between a battery BAT and a regulator REG. At the same time, the generator ACG is covered totally or partially with a magnetic matter 4 to ensure the magnetic shielding. |
