回転する検出器への非接触による給電におけるコアタイプ回転変圧器の利用
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概要
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To supply power to a rotating detector without contact, we propose a core-type rotary transformer which consists of a circular coil and excitation coils. The circular coil is attached to a rotating shaft with a detector. And each excitation coil is linked to the circular coil by a core. The advantage of this system is that supply power and efficiency can easily increase by linking multiple excitation coils in parallel to a circular coil. In addition to this, the size of a circular coil can be easily changed, and the accuracy of assembling is not severe.In this paper, characteristics of the core-type rotary transformer and calculations of its inductance are described by 3 dimensional magnetic analysis based on FEM. The features of this driving circuit and its performance obtained from differential equations are also shown. And these were experimentally confirmed.
- 社団法人 電気学会の論文
- 2001-10-01