With the emergence of quartz energy conversion technology to measure force, the above method is no longer used. Dynamic balancing machines with rollers mounted on a fixed base, using piezo or other force sensors to measure force and determine the amount of imbalance are called rigid dynamic balancing machines.

Why do we need a multi-speed dynamic balancing machine?
- Each rotor has a different mechanical system. Therefore, it is necessary to balance at appropriate speeds so that the balanced signal is clearest (less noise). In addition, depending on the rotor mass, the level of imbalance and the sensitivity of the balancing machine, we decide the weighing speed. For heavy parts, the amount of unbalance is unknown, if balancing at a certain speed can be dangerous, it must be balanced at low speed first and then at balancing speed to determine the amount of imbalance. remaining. Therefore, the dynamic balancing machine is required to have many speeds.

When dynamically balancing, is it necessary to rotate the part being weighed to reach its working speed?
- The quality and sensitivity of the balancer determines the weighing speed. For modern rigid balancing machines, one can determine the amount of unbalance at quite low speeds.
- The amount of imbalance is calculated in g.mm units. Based on ISO 1940 standard to determine the amount of remaining unbalance allowed for each working speed of the rigid rotor.