Test arm

The utility model discloses a test arm which comprises a test arm body and a test probe mounting seat, the test arm body is made of carbon fiber materials, and the test probe mounting seat is connected with the test arm body through an elastic pressure relieving mechanism. According to the test arm provided by the utility model, the hardness of the arm is ensured by utilizing a carbon fiber material, the elastic pressure relieving mechanism is arranged at the top end of the arm in a matched manner, and the test probe is arranged on the mounting seat. In the testing process, through the pressure relieving mechanism, the pressure generated when the testing arm directly makes contact with the surface of the tested object through the probe can be reduced, and therefore the purpose of improving testing probe marks is achieved. 本实用新型公开了一种测试手臂，包括测试手臂本体和测试探针安装座，所述测试手臂本体由碳纤维材料制成，所述测试探针安装座通过弹性压力缓解机构与所述测试手臂本体连接。本实用新型的测试手臂，利用碳纤维材料保证手臂硬度，在手臂顶端配合安装了一个具备弹性的压力缓解机构，将测试探针安装在安装座上。测试过程中通过压力缓解机构，就可以减小测试手臂直接通过探针接触到被测物体表面的压力，从而实现改善