| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnet float that: is easily manufactured by preferably reducing restrictions imposed on the shape of a float to house magnets in the float; and is miniaturized by reducing necessary buoyant force due to the decrease of the volume of the magnets.SOLUTION: In a magnetized magnet float that vertically moves in response to positional changes in a liquid level along a rod 4 housing magnetic detection means, the magnet float includes: a float 2 having in its center a hole through which the rod 4 penetrates; and three or more magnets 1 separated and fixed on the float. The use of the three or more magnets eliminates anisotropy with respect to the tilt of the float. Also, the reduction of the volume of the magnets achieves resource-saving of magnet materials and improves the flexibility in shape of the float, and the reduction of necessary buoyant force achieves miniaturization of the float. |
