（1） 采用两个SR机构作为位移传递机构，改变运动传递方向，并且输出端

(1) Two SR mechanisms are used as displacement transmission mechanisms to change the direction of motion transmission, and the output end does not produce coupled motion, so that the structure design is simple and does not require complex calculation processes. <br>(2) SR mechanism uses leaf hinge, its structural rigidity, resonance frequency is significantly increased, and stress is reduced. <br>(3) The micro-motion platform uses the symmetrical design of the lever structure, and a pure center rotation can be realized by using one PSA, the manufacturing cost of the micro-motion platform is reduced, and the structure is compact.

(1) Two SR mechanisms are used as displacement transfer mechanisms to change the direction of motion transmission, and the output does not produce coupling motion, making its structural design simple and does not require a complex calculation process.<br>(2) The SR mechanism uses leaf hinges, its structural stiffness, resonance frequency is significantly increased, stress is reduced.<br>(3) Micro-platform using the symmetrical design of the leverage structure, using a PSA can achieve pure center rotation, micro-platform manufacturing costs reduced, compact structure.

(1) Two SR mechanisms are used as displacement transfer mechanisms to change the direction of motion transfer, and the output end does not produce coupling motion, which makes the structure design simple and does not need complex calculation process.<br>(2) The structural stiffness and resonance frequency of SR mechanism are significantly increased and the stress is reduced by using blade hinge.<br>(3) The micromoting platform uses the symmetry design of lever structure, and uses one PSA to realize pure center rotation. The manufacturing cost of micromoting platform is reduced and the structure is compact.<br>