This paper concerns the problem of the fast and high accurate mass measurement under the conditions of floor vibration. In order to reduce the influence of floor vibration, a sensor which measures floor vibration is generally installed near the weighing sensor. The output signals from these two sensors are processed, and weighed mass is calculated. However, the dynamics of these two sensors are different in general, and the difference of the dynamics influences measurement accuracy. In order to improve the accuracy of mass measurement without losing the quickness, the authors apply the method of relative dynamic compensation to the problem, and propose two methods of mass measurement by using relative dynamic compensation. As a result, the feasibility of the methods is verified by experiment.
