| 摘要 |
PURPOSE:To perform accurate measurement by supporting a weighing rail which slidingly supports a cup on a load cell by way of a mass body, providing a reaction means which exerts the force in the direction opposite to that of the load that the mass body exerts upon the load cell to the mass body and adjusting the force thereof. CONSTITUTION:A weighing rail 8 which slidingly supports a cup 1 and receives its load, a load cell 42 which supports said rail 8 by way of a mass body 11, which is a cup supporting device, and detects the weight of an object 10 to be screened, and a spring 26 which is a reaction means of exerting the force in the direction opposite to that of the load that the mass body 11 exerts upon the load cell 41 are provided, and the force of the spring 26 is adjusted by an adjusting means 30. |
