简介了小滚转力矩测量技术 :小滚转力矩天平、自由滚转法 ,重点介绍了气动中心高速所研究的气浮天平技术 ,气浮天平技术具有小滚转力矩天平经济、直观的优点 ,同时具有自由滚转法精度高的优点。在微量滚转力矩的测量中 ,角度偏差和同轴度偏差将直接影响到滚转力矩的测量精度 ,应根据滚转力矩的测量精度对角度偏差和同轴度偏差进行控制 Brief introduction of small rolling torque measurement technology: small rolling torque balance, free-roll method, focusing on the aerodynamic center of the high-speed air-flotage balance technology, the air-flotage balance with a small rolling torque balance economic and intuitive advantages, At the same time, it has the advantages of high accuracy of free rolling method. In the measurement of micro rolling torque, angle deviation and coaxial deviation will directly affect the measurement accuracy of the rolling torque. The angle deviation and the deviation of coaxiality should be controlled according to the measurement accuracy of the rolling torque