Arrangement for determining diameter/radius of especially gas or liquid-filled cavities in stable material has hose balance for determining height difference between pivoted in and out positions of predefined section

摘要

The measurement arrangement has a rod (10) and at least one sensing device joined to it to be pivotable relative to the rod. A hose balance is provided for determining a height difference between pivoted in and out positions of at least one predefined section of the at least one sensing device.