HUMAN DIFFERENTIAL SENSITIVITY TO VIBROTACTILE STIMULATION USING A PASSIVE ENVIRONMENTAL SENSOR

Abstract

A passive environmental sensor was evaluated as an input device capable of presenting tactile data to a human. The experiment provided information on the ability of the human to detect differences within the range of the vibratory transducer. Frequency discrimination thresholds showed wide differences between subjects and a significant increase in human sensitivity at one point of the frequency input levels. This increases sensitivity was explained in terms of the resonant frequency of the vibratory and also in terms of the generally known high human sensitivity for amplitude and frequency changes at 200-300 cps. It was concluded that for fine-grain data discrimination individual differences may influence the final design of the sensor. However, these differences may be reduced and the sensitivity of the user improved if its electronic design and its transducers provide redundancy to the human.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0627239

Entities

People

  • Donald L. Avery
  • John Coules

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Contracts
  • Engineering
  • Frequency
  • Governments
  • Human-Machine Interfaces
  • Identification
  • New York
  • Object Recognition
  • Perception
  • Recognition
  • Security
  • Standards
  • Transducers
  • United States
  • Vibration

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Computational Modeling and Simulation
  • Inertial Navigation Systems.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems