一种轴向磁驱动多通道光纤旋转连接器

An Axial Magnetic Driven Multi-channel Fiber Optic Rotary Joints

通过对现有的多通道光纤旋转连接器结构优缺点进行比较,提出了一种轴向磁驱动多通道光纤旋转连接器结构。本光纤旋转连接器结构中旁轴通道光信号传输是通过主转动轴上光纤准直器与从动转轴中光纤准直器进行光路耦合,其耦合实现是通过磁驱动机构及精密齿轮传动机构来保证,中心通道光信号无间断传输是通过磁驱动机构实现。通过轴向尺寸的增加可实现通道数的增加。此光纤旋转连接器简单易行,避免了传统结构的诸多缺陷,简化了工艺、降低了成本。

The advantages and disadvantages of the existing structure of multi-channel fiber optic rotary joints are compared, a structure of axial magnetic driven muhi-channel fiber optic rotary joints is proposed. In this structure, the paraxial optical signal is transmitted by optical coupling both optical fiber collimator of main rotational axis and optical fiber collimator of driven shaft, which relies on the magnetic driven structure and precision gear trans-mission mechanism. The continuous transmission of the center channel＇ s optical signal is implemented by the magnetic driven structure. The channels increase with increase of the axial size. This fiber optic rotary joint is simple and easy, avoiding the drawbacks of traditional structure, simplifies the process, reduces the cost.