| 摘要 |
PURPOSE:To elevate the reliability of an acceleration sensor along with a simple, small and light construction by using a magnetic fluid. CONSTITUTION:A magnetic fluid 4 aggregates on a magnetic field separated from other fluids 5 in a case 6 with the magnetic action of a permanent magnet 7. The displacement of the fluid 4 according to acceleration is detected through working transformers 8 and 9 and acceleration is shown on a display 11 through an electric control circuit 10. The use of this magnetic fluid eliminates a mechanical support or the like at the detector section responding to the acceleration to elevate the reliability of an acceleration sensor without effect of inertia or the like while making the construction simple, small and light. Otherwise, a magnetic generation coil replacing a differential transformer may be used to check the displacement of the magnetic fluid due to acceleration. |
