Computer simulation of balance handling

Several decades ago, when working in the field of magnetism, we had to use a balance the sensitivity of which was limited only by Brownian motion. Thi s balance was a very slow one and to calculate the moment of force measured by it we used its equation of motion, T=J alpha+k(alpha) over dot + C alph a, where we measured the values of all the quantities present on the right- hand side of this equation. At the 21st Conference on Vacuum Microbalance T echniques in Dijon, we suggested that, with the help of a computer, this pr ocedure could also be made applicable to the handling of fast balances. The present paper contributes to this topic by presenting a computer simulatio n of such a fast balance.