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Equipments Used to Measure Body Temperature01:13

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Flexible Temperature Sensor Integrated with Soft Pneumatic Microactuators for Functional Microfingers.

Satoshi Konishi1,2,3, Akiya Hirata4

  • 1Department of Mechanical Engineering, College of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577, Japan. konishi@se.ritsumei.ac.jp.

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Summary

This study integrates flexible temperature sensors with a microactuator for a microfinger, enabling active target detection. The developed microfinger demonstrates reliable temperature sensing and actuation capabilities.

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Area of Science:

  • Microelectromechanical systems (MEMS)
  • Soft robotics
  • Sensor technology

Background:

  • Existing microactuators lack integrated sensing capabilities for active target interaction.
  • The development of functional microfingers requires precise temperature sensing and actuation.

Purpose of the Study:

  • To integrate flexible temperature sensors with a soft microactuator for a functional microfinger.
  • To enable active target approach and contact detection using the integrated microfinger.
  • To characterize the performance of the integrated temperature sensors under actuation and bending stress.

Main Methods:

  • Design and fabrication of a microfinger incorporating thin-film thermocouples (K-type and T-type) and a pneumatic balloon microactuator.
  • Utilized the Seebeck effect for temperature detection with a 2.0 mm × 2.0 mm sensing area.
  • Conducted characterization tests, including output voltage vs. temperature and 1000-cycle repeated bending tests to assess sensor performance under actuation effects.

Main Results:

  • The integrated flexible temperature sensors exhibited an output voltage directly proportional to temperature, as designed.
  • The microfinger demonstrated the capability for active target approach and contact detection.
  • Sensor performance remained stable after 1000 bending cycles, indicating robustness against actuation effects.

Conclusions:

  • The successful integration of flexible temperature sensors with a soft microactuator creates a functional microfinger with active sensing capabilities.
  • The developed microfinger is suitable for applications requiring precise temperature measurement and tactile interaction.
  • The sensor's resilience to bending deformation ensures reliable performance in dynamic environments.