A laser plantar pressure sensor for the diabetic foot

Rowland Hughes, Hefin Rowlands, Scott McMeekin

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

This paper describes the design and development of a high-resolution pressure sensor for use in the field of foot pressure measurement. The device uses an interferometry technique that involves the use of a laser light directed onto a pressure sensitive plate. The pressure plate compresses when a load is applied, and it is this compression which is measured by the interferometry technique. The interference pattern (interferogram) produced represents the pressure distribution across the plate. The interferogram is inputted into the computer using a high pixel CCD camera and video capture card. A fringe analysis program then converts the interferogram into a three-dimensional image of the pressure distribution. A prototype system is described and the initial results show that the system can produce a high resolution image with dynamic capabilities. Copyright (C) 2000 IPEM.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalMedical Engineering and Physics
Volume22
Issue number2
DOIs
Publication statusPublished - Mar 2000
Externally publishedYes

Keywords

  • Foot pressure measurement
  • Fringe analysis
  • Interferometry

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