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In-Sensor Computing Tactile Devices for Well-Defined Confined Space Interactions.

Yanhao Luo1, Hongyu Chen1, Lei Liu1

  • 1Department of Electronic Science, Xiamen University, Xiamen 361005, China.

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|January 31, 2026
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Summary
This summary is machine-generated.

A new spray-heating fabrication method enables rapid, consistent production of intelligent flexible tactile sensors. These sensors offer cut-and-paste functionality and built-in processing, overcoming key limitations in human-machine interaction technology.

Keywords:
carbon nanotubehigh-yield fabricationhuman-machine interactionin-sensor computingtactile devices

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Area of Science:

  • Materials Science
  • Robotics
  • Electronics Engineering

Background:

  • Intelligent flexible tactile sensing systems are crucial for advanced human-machine interaction.
  • Current systems face challenges like data redundancy, instability, latency, and low production yield.
  • Integrated sensing and computing architectures are hindered by interfacial issues and manufacturing difficulties.

Purpose of the Study:

  • To develop a novel fabrication system for intelligent flexible tactile sensors.
  • To address limitations in production speed, sensor stability, and on-device processing.
  • To enable reliable and versatile tactile sensing for complex applications.

Main Methods:

  • Introduced a spray-heating continuous high-throughput fabrication (SH-CHTF) system.
  • Utilized computational fluid dynamics for precise control of multiwalled carbon nanotube films.
  • Developed an intelligent cut-and-paste (ICAP) tactile sensor with intrinsic processing capabilities.

Main Results:

  • Achieved a fabrication rate of 680 cm²/h, over 240% faster than conventional methods.
  • Demonstrated sensors with <0.17% resistance variation under bending and <1.1 ms response time.
  • Validated sensor durability exceeding 20,000 cycles and recalibration-free cut-and-paste functionality.

Conclusions:

  • The SH-CHTF system enables consistent, high-throughput manufacturing of advanced flexible tactile sensors.
  • The ICAP sensor overcomes key hurdles in device-to-device manufacturing and on-device processing.
  • This technology facilitates conformal integration and enables sophisticated gesture interactions via neural networks.