带幅板双片簧导轨在仪器中已被广泛使用。本文运用材料力学原理,推导了它的刚度计算公式,并进行了实验校核,实验值与理论值相近。 Double-leaf spring with the plate has been widely used in the instrument. In this paper, the principle of material mechanics is used to deduce the formula of its stiffness, and the experimental verification is carried out. The experimental value is similar to the theoretical value.