HIGH PRECISION WOUND ELECTRIC POTENTIAL DEVICE

摘要

A high precision wound electric potential device. The high precision wound electric potential device comprises a resistor member (10), a resistor matching member (20) and a resistor wiper (30). The device is provided with a first winding (101) and a second winding (201) on the resistor member (10) and the resistor matching member (20) respectively, and enables the resistor matching member (20) to drive the resistor wiper (30) to move along the first winding (101) at a surface of the resistor member (10), thereby changing an output resistor value of the high precision wound electric potential device. Compared to a resistor wiper moving along the resistor member in a linear direction in the prior art, the above high precision wound electric potential device improves the precision of the output resistor value of the wound electric potential device, satisfying demands for variable resistor precision in the field of precise control and precise measurement.