| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic switching function of a container which solves the problem of the container being continuously used even when an residual amount is decreased and allowing treatment for one-time portion to be wasted when a raw material is depleted and eventually causing damage and enables the stable operation of a system. SOLUTION: Piping enabling magnetization treatment to be executed on the inner piping surface of a siphon container, a bubbler container, and an industrial airtight container, piping enabling a magnetic body to be sealed therein, or a vibration pipe enabling a vibration motor, a magnet, and a magnetic sensor to be assembled and sealed into the inside of a piping material are electrically or magnetically vibrated from the outside of the container. A state where the vibration of the piping or the vibration pipe is prevented and damped by the amount of the raw material in the container is detected by a vibration sensor or the magnetic sensor from the inside or the outside of the container. Electrical and acoustic treatments are carried out and the position of the liquid surface of the raw material is determined and displayed. The supply of the raw material is stopped or the container is automatically switched by driving a valve through an obtained signal. COPYRIGHT: (C)2008,JPO&INPIT
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