传统光杠杆法测量金属丝杨氏模量实验装置操作要求高，数据精度偏低，难以满足现代教学的需求.本论文采用空气劈尖替代光杠杆，实验装置一体化设计，节约空间；增设滑轮改变劈尖倾角方向，可扩大倾角增加测量范围；设计游标卡尺提高金属丝测量精度.

The conventional experimental setup of Youngs modulus measurement based on optical lever method has been believed to exhibit some disadvantages such as high operational requirements and relatively low data accuracy, making it difficult to meet the needs of highquality teaching. Here, we employed a new method to improve the traditional experimental setup through using air wedge instead of optical lever, thereby this setup is characterized by its integrated design, which saves space. A pulley is added to change the direction of the wedge angle, which expands the angle and increases the measurement range. In addition, a vernier caliper is designed to improve the measurement accuracy of the metal wire.