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Customization

How It Works

Top Circuit (Collector)

Circuit Spacer

Bottom Circuit (Resistor)

Bottom Adhesive

In simple terms, the SoftPot membrane potentiometer is a resistive element, which comprises a conductive

resistor, a sealed encasement and a simple wiper assembly. A membrane potentiometer can also function as a

voltage divider.

The SoftPot is a three-wire system with two resistive output channels and an electrical collector channel.

By pressing a wiper down onto the top circuit the SoftPot produces the desired electrical output. The "wiper" is a

non-conductive mechanism that depresses the top circuit actuating the potentiometer from the outside of the

element. The top and bottom circuits are separated by 0.15mm (0.006") of spacer adhesive build-up and contact

between the circuit occurs by pressure (usually 1-3 Newtons) from the wiper on the top circuit, pushing down until

the top circuit connects with the bottom circuit to create a potentiometric output.

The construction of the wiper design can adapt to any application because most materials can serve as the wiper:

plastics, metals, sliders, rollers, wheels, etc. Also, the SoftPot can also be manually (hand) actuated.

Customize the size, shape, and even the number of tracks. Such custom requests, for example, can be: multiple

ganged sensors (up to 40 tracks); serpentine active area track; custom lengths 10mm-2000mm; custom rotary

diameters, etc. Feel free to contact Spectra Symbol with your custom request at sales@spectrasymbol.com or

(888)795-2283..