Vision-tactile sensor and its range adjustment method
By combining a solid-liquid coupled elastomer with an electroosmotic regulator, the range adjustment of the visual tactile sensor was realized, solving the problem that the sensor could not simultaneously achieve high sensitivity and a large range, and enabling the sensor to quickly switch ranges without changing the hardware.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TSINGHUA UNIVERSITY
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing visual-tactile sensors cannot balance high sensitivity and large range, and the range is difficult to switch quickly, resulting in low efficiency when switching between delicate and forceful operations of the robot.
By employing a solid-liquid coupled elastomer and an electroosmotic regulator, the range of the pressure sensor in the closed liquid chamber is adjusted by controlling the pressure inside the closed liquid chamber. The electroosmotic regulator connects the storage chamber and the closed liquid chamber, thereby achieving active and precise adjustment of the pressure inside the closed liquid chamber and changing the equivalent stiffness of the solid-liquid coupled elastomer.
Without increasing structural complexity, the sensor can maintain high sensitivity to small forces while also having an adjustable wide range capability, enabling rapid switching between task modes.
Smart Images
Figure CN122409007A_ABST