Application of active vibration control techniques to mass measurement

Mass measurement systems using active dynamic vibration absorbers are developed for perform measurement under weightless conditions. According to the measurement principles, it is necessary to eliminate the vibration of the primary system to which the absorber is attached. This paper presents several applicable control methods for reducing vibration to zero and clarifies the advantages and disadvantages of each control method. Some of the control methods are applied to actual measurement. The experimental results suggest the periodic learning control is suitable for measurement with the developed instrument