磁电式仪表中铝框骨架的作用演示装置

Function of aluminum framework in magnetoelectric meter

针对教材的需要,自制了演示简易磁电式仪表中铝框作用的演示装置.在该演示装置中,若给强磁铁旁的线圈通电,线圈将在安培力的作用下带动线圈框一同摆动,通过对比铝质和PVC材质骨架的线圈框的摆动情况,可明显看出铝质的线圈框骨架很快停止摆动,进而说明了铝框骨架受到了电磁阻尼作用.

Aiming at the needs of teaching materials, a device for demonstrating the function of aluminum framework in magnetoelectric meter was designed. When the coil next to the strong magnet was energized, the coil and the framework would swing together under the Ampere force. Aluminum framework stopped swing earlier compared to PVC framework, indicating that conducting aluminum framework was influenced by electromagnetic damping.