Ultra-thin Circular Flexible Potentiometer (0.45mm Graphene)

Circular Flexible Potentiometer is a membrane-based position tracking component designed to replace bulky mechanical rotary switches in space‑constrained electronics. Built with graphene pressure‑sensitive materials inside an ultra‑thin 0.45mm flexible structure, this circular resistive sensor converts applied pressure along its sensing ring into a linear voltage signal from 0.2V to 0.8V. The flexible rotary input device operates with a trigger force as low as 20g and delivers sub‑millisecond response speed. Compared with traditional rotary potentiometers, the thin‑film angle detection module eliminates complex mechanical assemblies while providing reliable position feedback for robotics controls, smart appliances, and compact human‑machine interfaces.

Graphene-Based Sensing Structure for Long Service Life

A composite construction combining environmentally friendly polyester film with highly conductive graphene forms the sensing layer of this flexible rotary detector. The advanced material system minimizes oxidation and wear commonly found in traditional carbon film potentiometers. By relying on pressure contact rather than mechanical sliding parts, the thin resistive sensing module maintains stable signal output even after extended operation. Contact resistance remains below 100Ω, while durability exceeds one million activation cycles, supporting long‑term deployment in industrial automation systems and embedded electronic controls.

0.45mm Ultra-Thin Flexible Form Factor

A profile thickness of only 0.45mm allows this circular membrane potentiometer to integrate into designs where vertical space is extremely limited. The flexible sensing layer can conform to curved housings, enabling creative industrial design possibilities in wearable electronics, ergonomic controllers, and compact smart devices. Installation efficiency is improved through a pre‑applied adhesive backing combined with solderable metal terminals. This design approach simplifies assembly compared with rigid through‑hole components while enabling rapid integration into prototypes and production hardware.

Linear Voltage Output for Precise Position Detection

Continuous DC voltage output corresponds linearly to the location of the applied pressure point along the sensing arc, enabling accurate angular displacement measurement. With a recommended pressure range between 20g and 200g, the circular position sensing element responds to subtle positional changes with response times under 1ms. Such precise linear feedback supports real‑time control loops in robotic joints, smart control panels, and interactive electronic systems where smooth, responsive input tracking is essential.

Figure: Dimension Diagram

Figure: Pressure Application Method

This circular pressure‑activated position sensor suits systems requiring compact rotational input or displacement monitoring. Applications range from robotics joint feedback and smart home control interfaces to IoT equipment, wearable electronics, and custom human‑machine interaction devices requiring reliable, low‑profile position sensing.