| 摘要 |
PURPOSE:To detect the amount and direction of acceleration, by sealing a magnetic fluid into a large-dia. part at the center of a closed pipeline to arrange coil assemblies at tubules extending horizontally and vertically from a large-dia. part. CONSTITUTION:A magnetic fluid 3 is sealed into a large-dia. part 1a at the center of a closed pipeline 1 mace of a nonmagnetic material and magnet couples 4a, 4b, 5a, 5b, 6a, 6b, 7a and 7b are arranged at specified points of tubules 1b-1e extending from the large-dia. part 1a. Exciting coils 8a-11a and detection coils 8b-11b compose coil assemblies, which are arranged symmetrically at the specified points of the tubules 1b-1e. Acceleration works in the direction Xa and when an action force by the acceleration overcomes a coercive force with the magnet couples 4a and 4b, the magnetic fluid 3 is displaced in the direction Xb, opposite to the direction of acceleration and a part thereof flows to the tubule 1d. Thus, a differential output is generated in right and left detection coils and the size thereof is proportional to the magnitude of the working acceleration. |
