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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Three-Dimensional Force System01:30

Three-Dimensional Force System

In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...

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Related Experiment Video

Updated: May 22, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

Fingertip-scale six-axis tactile interface with high-precision force sensing and position localization for dexterous

Yi Song1,2, Junwei Wang1,2, Zongke Li1,2

  • 1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310023, China.

Microsystems & Nanoengineering
|May 20, 2026
PubMed
Summary

HexaTouch is a new micro-tactile sensor that accurately detects multidirectional forces and contact locations. This advanced sensor enhances robotic dexterity and human-machine interaction with its high precision and rapid response.

Related Experiment Videos

Last Updated: May 22, 2026

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

Area of Science:

  • Robotics and Micro-systems Engineering
  • Materials Science and Engineering
  • Machine Learning and Artificial Intelligence

Background:

  • Developing tactile sensors for robots is challenging, limiting dexterity and human-machine interaction.
  • Existing sensors struggle with simultaneous multidirectional force and precise location detection.

Purpose of the Study:

  • To introduce HexaTouch, a fingertip-scale sensor that integrates vision-based deformation encoding with capacitive sensing.
  • To achieve simultaneous decoding of six-axis force/torque and 3D contact location.

Main Methods:

  • Utilized a bioinspired bilayer elastomer with a graded micropillar array for heterogeneous stiffness.
  • Employed a dense capacitive micro-array to capture deformation patterns as high-resolution capacitive images.
  • Developed a machine learning framework for decoding capacitive images into force/torque vectors and contact coordinates.

Main Results:

  • Achieved force measurement errors under 1.6% and contact localization precision up to 0.1 mm.
  • Demonstrated a low inference latency of 1.5 ms, maintaining stability across various environmental conditions.
  • Validated through applications in dexterous grasping, precise assembly, and human-machine interaction.

Conclusions:

  • HexaTouch offers a robust and adaptable micro-tactile sensing platform.
  • Significantly advances capabilities in robotic manipulation and environmental interaction.
  • Provides a foundation for next-generation human-robot collaboration.