Electronic analytical balance

The electronic analytical balance uses the principle of electromagnetic force balance to achieve weighing. When the balance is in a balanced state, the mass of the object is determined by measuring the balance relationship between the electromagnetic force and the weight of the object. Specifically, there is an electromagnetic coil and a permanent magnet inside the balance. When the object is placed on the balance tray, the gravity causes the balance beam to tilt, thereby changing the current in the electromagnetic coil and generating electromagnetic force to balance the gravity. By measuring the change in the current in the electromagnetic coil, the mass of the object can be accurately calculated.