原子炉内部調査用モニタリングアームの開発

コンパクトなアーム巻取装置の試作と実アーム関節の非接触温度推定

抄録

In this paper, we fabricate a prototype to wind a monitoring arm that uses a low-melting point alloy (LMPA) in each joint compactly and verify the performance of the non-contact temperature sensing using the prototype arm. For winding compactly, we design the mechanism that winds the arm in a spiral shape. The experiment is conducted to confirm the winding and unwinding operation of the prototype of the proposed mechanism. In addition, the system needs to recognize the free and locked state of the joint for winding and unwinding automatically. Therefore, we verify the non-contact temperature sensing proposed in the previous study using the prototype of the arm. Finally, we confirm the influence of each component of the arm for short time heating through the experiment.