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A positioning sensor for tonometric applications

Authors
Publisher
Elsevier Sequoia
Publication Date
Disciplines
  • Design

Abstract

In this paper we present a sensor, which is designed for application in a tonometer, an instrument for the measurement of intraocular pressure. The sensor measures diameter and position of a part of the eye globe that is flattened by the tonometer. The sensor principle is based on a change in resistance of four resistor arrays due to contact with a metallized foil, which flattens a part of the eye globe. In spite of some problems with the contact resistance between the resistor contact arrays and the metallized foil, it may be concluded that the positioning sensor can be used to improve existing tonometers.

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