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Related Concept Videos

Tactile and Chemical Senses01:27

Tactile and Chemical Senses

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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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Design Example: Resistive Touchscreen01:14

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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.
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Mechanical Systems01:22

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Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
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Related Experiment Video

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A Tactile Automated Passive-Finger Stimulator TAPS
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A Pneumatic Tactile Sensor for Co-Operative Robots.

Daoxiong Gong1,2, Rui He3,4, Jianjun Yu5,6

  • 1Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China. d.x.gong@gmail.com.

Sensors (Basel, Switzerland)
|November 11, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces a novel pneumatic tactile sensor for robots, enabling them to sense force, vibration, and slippage. This advancement enhances human-robot collaboration and the handling of delicate objects.

Keywords:
force sensorhysteresislinearitypneumatic tactile sensorrepeatability

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Area of Science:

  • Robotics
  • Sensor Technology
  • Human-Robot Interaction

Background:

  • Advanced robots require sophisticated tactile sensing for safe and effective human interaction.
  • Pneumatic tactile sensors offer advantages for human-robot collaboration due to their inherent compliance.

Purpose of the Study:

  • To construct and evaluate a pneumatic tactile sensor for robot fingertip applications.
  • To demonstrate the sensor's capability in detecting force, vibration, slippage, softness, and roughness.
  • To assess the sensor's performance characteristics and suitability for cooperative robotics.

Main Methods:

  • A pneumatic tactile sensor was constructed using an air bladder system.
  • The sensor was integrated onto a robot hand's fingertip.
  • Sensing capabilities were tested by measuring changes in air bladder pressure in response to various stimuli and object interactions.

Main Results:

  • The pneumatic tactile sensor successfully detected force, vibration, and slippage.
  • The sensor demonstrated the ability to perceive object features like softness and roughness.
  • The sensor exhibited good linearity, repeatability, and low hysteresis.
  • Customization of size and sensing range is achievable through material and thickness variations.

Conclusions:

  • The developed pneumatic tactile sensor is well-suited for cooperative robot applications.
  • Its inherent compliance and sensing capabilities enhance robotic hands for human interaction and fragile object manipulation.
  • The sensor's simplicity, low cost, and customizability make it a versatile tool for improving service robot performance.