Abstract
Based on the vibration isolation theory of the lever system presented in the previous paper, the trial construction of the lever system (n=2) is done, and the experimental investigations are carried out. Under such conditions that the foundations are moved sinusoidally by two independent mechanical shakers, the vibration characteristics of the weighing beam are measured in the relation to both the vibration modes of the foundations and the balance conditions. The results show that the experimental values agree well with the theoretical values, and the existences of the balance condition defined as J-Balance or M-Balance in the theory and their physical meanings are clarified.
