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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

951
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...
951

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Related Experiment Video

Updated: May 7, 2026

A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy
06:16

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Smart sensing of tool/tissue interaction by resistive coupling.

Shunsuke Yoshimoto, Yoshihiro Kuroda, Masataka Imura

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 11, 2013
    PubMed
    Summary

    This study introduces a simple resistive tactile sensor for monitoring surgical tool-tissue interaction. The developed sensor shows reproducibility and works with biological samples, aiding surgical task monitoring.

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    Area of Science:

    • Biomedical Engineering
    • Surgical Technology
    • Sensor Development

    Background:

    • Surgical task monitoring requires smart sensing of tool-tissue interaction.
    • Existing methods may disturb tool manipulation.
    • A non-intrusive sensing approach is needed.

    Purpose of the Study:

    • To propose and evaluate a novel tactile sensing method for detecting tool-tissue interaction.
    • To assess the sensor's performance using a simple hardware setup.
    • To confirm the sensor's applicability with biological tissues.

    Main Methods:

    • Developed a tactile sensor utilizing resistive coupling with two electrodes.
    • Employed a bridge circuit and differential amplifier for robust resistance sensing.
    • Investigated sensor output against wet sponge deformation during retraction tasks.
    • Performed model fitting to analyze the deformation-output relationship.

    Main Results:

    • The proposed sensor demonstrated sufficient reproducibility in controlled deformation tests.
    • The sensor's output correlated with the degree of sample deformation.
    • Successful validation of the sensor's functionality with a biological sample was achieved.

    Conclusions:

    • The developed resistive tactile sensor offers a viable method for monitoring tool-tissue interaction.
    • The simple hardware design ensures minimal disturbance during surgical procedures.
    • This technology has potential applications in enhancing surgical safety and precision.