| 摘要 |
A device for monitoring the filling of a bag (10) comprises a resistor eleme nt to be mounted on the outside surface of the bag said resistor element being a flexible potentiometer (20), the resistance whereof being changed by bending of the potentiometer due to increasing bulging of the bag wall under continuing filling of the bag. The flexible potentiometer can be connected t o an alarm device (24) reacting at a predetermined resistance value of the resistor element.
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