There are two basic methods, such as contact and contact-less.The contact method is classified into conductive plastic resistor, and cermet resistor potentiometers depending on the resistor element used. Available models are single turn, multiturn, and linear types. Our wirewound potentiometers make use of precision wire winding technology to achieve low noise and long life. Conductive plastic and cermet potentiometers use smooth coating resistors, providing essentially infinite resolution and long life.Contactless potentiometers are expected much longer life than contact method.
Potentiometers (for sensor)
Potentiometers (for manual setting)
For more informations please contact Dynetics