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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.
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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Introduction to Special Senses01:26

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Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
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Sensory Functions of the Skin01:16

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The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
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Somatosensation01:33

Somatosensation

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The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Sensory Modalities01:15

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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
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Related Experiment Video

Updated: Mar 1, 2026

Multimodal Analytical Platform on a Multiplexed Surface Plasmon Resonance Imaging Chip for the Analysis of Extracellular Vesicle Subsets
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Multimodal Bio-Inspired Tactile Sensing Module for Surface Characterization.

Thiago Eustaquio Alves de Oliveira1, Ana-Maria Cretu2, Emil M Petriu3

  • 1School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON K1N 6N5, Canada. talvesde@uottawa.ca.

Sensors (Basel, Switzerland)
|May 27, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces a novel bio-inspired tactile probe for robots to identify surface properties. The system effectively characterizes ridged surfaces using MEMS sensors, achieving high classification accuracy for robotic manipulation.

Keywords:
MARG systemMEMSrobotic probesurface profile classificationtactile sensing

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Area of Science:

  • Robotics
  • Materials Science
  • Biomimetics

Background:

  • Robots require object property recognition for safe and efficient operation in diverse applications.
  • Surface characterization is crucial for robotic manipulation, enabling interaction with the environment.

Purpose of the Study:

  • To explore surface characterization using a novel bio-inspired tactile probe.
  • To evaluate the probe's ability to detect and classify surface properties of ridged objects.

Main Methods:

  • A bio-inspired tactile module integrating a 9-DOF MEMS MARG sensor and a deep MEMS pressure sensor was developed.
  • Experiments involved sliding the probe over ridged surfaces in both linear and robotic finger setups.
  • Data analysis included frequency content analysis and multiscale principal components analysis with a multilayer neural network for classification.

Main Results:

  • The tactile module successfully detected stimuli with frequencies from 3.66 Hz to 11.54 Hz in a linear setup.
  • Classification accuracies ranging from 85.1% to 98.9% were achieved for synthetic shapes using the robotic finger setup.
  • The study demonstrated the effectiveness of MEMS sensors embedded in flexible substrates as tactile sensors.

Conclusions:

  • The developed bio-inspired tactile probe is effective for surface characterization and object recognition in robotics.
  • MEMS-based tactile sensing integrated into compliant structures offers a promising approach for enhancing robotic capabilities.
  • This technology has potential applications in areas requiring precise robotic interaction, such as healthcare and manufacturing.