Attenuation device for vibrations for damping vibrations of measuring instrument such as scale has control loop with sensor receiving vibrations and sensor interface receives output signal and actuator carries out damping

摘要

The attenuation device includes a control loop with a sensor (7) receiving the vibrations. A sensor interface (9) receives an output signal and an actuator (12) carries out the damping. A head (18) of hammer (15) hits a plate support (2) in order to produce the attenuated oscillations. A mass of the hammer (15) is related to the desired frequency range, to be attenuated. A damping frequency range in scales may be of 300Hz and particularly maximum of 100Hz, thus, the metal hammer is used of a mass of less than 450g. An Independent claim is included for: (a) an actuator