Magnetic Suspension Balance

When collecting a measurement, the sample whose mass change is being measured is attached to the permanent magnet. The actual position is then detected and controlled via a high performance PID controller. In order to establish a free levitation position for the permanent magnet and measurement object, voltage is applied to the electromagnet outside of the measurement cell. This allows the sample mass to be measured under contact free extreme conditions. 

Load decoupling then allows the object weight being measured to be subtracted for taring or calibrating the corresponding measurement signal. When this decoupling occurs, only the permanent magnet remains in levitation position (zero-point position). Taring in zero-point position ensures long term stable and drift-compensated measurements. When measuring point is selected, the measurement object is lifted, and the corresponding weight is detected by the microbalance.

The measurement object can be a crucible, containing sample materials (measuring of adsorption isotherms, researching material properties, analyzing catalysis etc.). The measurement object can also be a sinker with calibrated volume. In this case, the Magnetic Suspension Balance can be used for high accurate density measurement of the sinker surrounding fluid. 

Magnet Suspension Balances Technology is unique because it can measure the mass of two samples at once with maximum quality and efficiency.