| 摘要 |
PURPOSE:To detect a level accurately without being influenced by the vibration of a liquid and to maintain the detecting stage efficiently by making adjustable the timing of circular arc rotation of a float with the movement of the level. CONSTITUTION:One end of an upper and lower extension parts of a plane-shaped rear plate 2 of a main body 3 made of a hollow body of which a front side is made a hemisphere 1 and a rear side is formed to the rear plate 2 is made a pivotal fulcrum 4, and the other end is made an adjustable point 5 to constitute a float A. Further, a magnet 7 and a magnet sensor 8 are provided respectively to the inside of the hollow and a starting point or terminating point of a fitting object surface 6 of the float A to constitute a magnetic switch. Then, when the level drops from the position of the terminating point P3 of (a) and comes to the position of a lower part of the float A of (b), it first separates instantaneously from the terminating point P3 and rotates to become the state of (c). When a distance (l) is short, it does not rotate until the level of (b) further comes down and when the distance (l) is long, it rotates in the comparatively upper position and its timing can be set adjustably according to a purpose. |
