激光陀螺新型槽片

根据激光陀螺的使用要求,针对传统槽片在结构和材质上给加工和陀螺性能所带来的不利因素,设计一种集微晶玻璃和熔石英玻璃的优点于一体的新型槽片结构。其基体采用与陀螺腔体材料相同的底膨胀系数的微晶玻璃,反射片采用抛光表面特性很好的熔石英玻璃,通过光胶接合组成一个完整的新型槽片。并针对新的槽片结构提出了与之相应的陀螺腔体贴片面加工方案,使其既能配合新结构的槽片又不增加腔体的制造难度。同时还提出和实现了在加工中采取球面部件与槽片基体分开加工的方式,使得新结构槽片不仅解决了长期困扰陀螺制造行业的因石英槽片易漏氦而引起的陀螺存储寿命相对较短的问题,同时还降低了球面基片超光滑表面加工难度和加工成本。

A New Grooved Mirror of the Ring Laser Gyro

Analyzed the shortcoming of traditional grooved mirror used on the ring laser gyro(RLG) about its masterial and structure,a new structure of grooved mirror was designed,which syncretized the advantanges of both of glass-ceramic(zerodur) and fused quartz.The body of the mirror is made of glass-ceramic,the same material of the gyro block.The reflective stice is made of fused quartz,whose surface can be polished to higher quality.These two components are combined to become the new mirror.Accordingly a new method was put forward to machine the gyro block surface on which the grooved mirror fixed.It can make the block to suit to the new mirror without more difficulties. A new method was also put forward to polish the substrate and the spherical surface of the mirror separately.Not only has it resolved the problem that the helium leaks through the fused silica material,but also reduced the difficulties is superpolishing the surface of the mirror's substrate.