Aiming at the problems

that lever amplifier mechanism is simple in structure and easy to realize

but its displacement transfer rate is low and its output displacement is small

an asymmetric micro-clamp based on lever amplification principle is designed.Firstly

the relationship between theoretical input variables and theoretical output variables is calculated by geometric relationship.Then

the performance of the micro-clamp is obtained by finite element analysis.Finally

the optimal installation position of the sensor is found by strain relationship.The output displacement of the micro-clamp is 221.24 μm and the magnification of the displacement is 11.062 when the input displacement of input end is 20 μm.Compared with similar micro-clamps

the output displacement is larger.