Touching with torque enables human-level robotic dexterity
Achieving human-like forceful manipulation remains a major challenge in robotics because of the lack of critical environmental interaction cues such as collisions, balance, and resistance. We present a torque-angle-pressure (TAP) tactile sensor leveraging magnetic flux density gradients to achieve bidirectional, ultrasensitive (~0.1°, ~0.4 newton-millimeter), and high-linearity (<i>R</i><sup>2</sup> = 0.99) sensing over a wide range (±241.6 newton-millimeter) through a single readout channel. The accurate torque sensing ability provides both force and distance information, bringing the environment into the interaction loop. A TAP-equipped robot can perform vision-free stable object placement and complete a balance beam stacking challenge in just 2.4 seconds with a success rate of 81.5%-both measured metrics surpassing human performance. It also supports adaptive daikon slicing with real-time posture and motion adjustments-capabilities rarely achievable in existing robotic systems. This work advances tactile sensing, enables forceful manipulation in unstructured environments, and represents a key step toward effective human-robot collaboration.
Authors
- Y. R. Shen (ORCID: https://orcid.org/0000-0001-8023-2765)
- Yu Sun
- Ling Wang
Institutions
- Hong Kong University of Science and Technology (HK)
- HKUST Shenzhen Research Institute (CN)
- Xi'an Jiaotong University (CN)
- University of Hong Kong (HK)
Publication Details
- Journal
- Science Advances
- Published
- 2026-03-04
- DOI
- https://doi.org/10.1126/sciadv.aec3263
- Primary Topic
- Advanced Sensor and Energy Harvesting Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00