Electric potentiometer

The utility model relates to an electric potentiometer which solves the problems that an automatic adjustment control part of a common potentiometer has a complicated structure and is non-modular without protection and adjustment functions. The electric potentiometer comprises a potentiometer with a sliding foot, an electromotor, an electromotor drive circuit, a switch module and a control interface, wherein the electromotor is in linkage connection with the sliding foot of the potentiometer; the switch module is composed of multiple relays; the relay comprises a coil part and a contact part; the coil part of the relay is connected to a control interface; and the contact parts of the relays form a switch changeover circuit connected between the two ends of the electromotor and the electromotor drive circuit. The electric potentiometer provided by the utility model has the advantages that automatic adjustment control on the potentiometer is realized by use of an electromotor, the control is more accurate, the