| 摘要 |
PURPOSE:To judge a degree of the impact intensity properly. CONSTITUTION:Plural magnetic layers 2a, 2b and 2c magnetized by different magnetic force are arranged in parallel with each other on a board 1, and space is formed on these magnetic layers by a cover 3, and a proper quantity of magnetic powder is housed in the space. When it is used, this impact judging label is shaken properly with hands, and the magnetic powder in the space is dispersed, and is stuck uniformly on the whole magnetic layers. The impact judging label in this condition is made vertical, and is stuck on a side surface of an impact judging object. When the impact is apllied to the object, the magnetic powder is shaken off successively from the magnetic layers whose magnetic force is weaker. When a quantity of the magnetic powder remaining on the respective magnetic layers is observed visually, a degree of the impact intensity applied in the middle of transportation can be judged. |
