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Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

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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...
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Tactile and Chemical Senses01:27

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Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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A Tactile Automated Passive-Finger Stimulator TAPS
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Paper-Based Active Tactile Sensor Array.

Qize Zhong1, Junwen Zhong1, Xiaofeng Cheng1

  • 1Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China.

Advanced Materials (Deerfield Beach, Fla.)
|October 10, 2015
PubMed
Summary
This summary is machine-generated.

A novel paper-based active tactile sensor-array (PATSA) offers dynamic sensitivity and can identify pixel positions through voltage analysis. This flexible sensor shows potential for customized electronic skin applications due to its robust performance even with partial area removal.

Keywords:
active sensorspaper-based devicespiezoelectretspolypropylenetactile sensor arrays

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Robotics

Background:

  • Tactile sensing is crucial for human-computer interaction and robotics.
  • Developing low-cost, flexible, and robust tactile sensors remains a challenge.

Purpose of the Study:

  • To demonstrate a paper-based active tactile sensor-array (PATSA) with high dynamic sensitivity.
  • To show the capability of routing pixel positions using real-time voltage analysis.
  • To explore the potential of PATSA for customized electronic skin applications.

Main Methods:

  • Fabrication of a paper-based active tactile sensor-array.
  • Measurement of dynamic sensitivity (0.35 V N⁻¹).
  • Analysis of real-time recording voltages during pressing to determine pixel position.

Main Results:

  • The PATSA achieved a dynamic sensitivity of 0.35 V N⁻¹.
  • Pixel positions were successfully routed by analyzing voltage signals.
  • The sensor array maintained functionality even when parts were removed, indicating robustness.

Conclusions:

  • The demonstrated PATSA is a promising low-cost tactile sensing technology.
  • Its ability to identify precise locations and maintain function under damage suggests suitability for electronic skins.
  • Further development could lead to advanced haptic feedback systems and wearable electronics.