A fibre-optic displacement sensor for a cyclotron environment based on a modified triangulation method

Jovan Elazar; Sandra Šelmić; Miloš Tomić; Milan Prokin

doi:10.1088/1464-4258/4/6/379

A fibre-optic displacement sensor for a cyclotron environment based on a modified triangulation method

Jovan Elazar, Sandra Šelmić, Miloš Tomić, Milan Prokin

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Due to the very high magnetic and radio frequency fields and generally hostile environment inside cyclotrons, electronic devices are hindered from functioning. By implementing a modified triangulation method we developed a purely dielectric PC interfaced sensor head, which will be placed inside the cyclotron for electrode-position measurement. This represents a completely new cyclotron diagnostic tool designed to cope with cyclotron alignment problems. In this paper we present the motivations for developing such a sensor, the theoretical analysis, overall sensor design for two-coordinate simultaneous measurement and measurement results. A resolution of 10 μm within a 5 mm range was achieved independently of laser diode power variation, target reflectance variation and induced attenuation in optical fibres.

Original language	English
Pages (from-to)	S347-S355
Journal	Journal of Optics A: Pure and Applied Optics
Volume	4
Issue number	6
DOIs	https://doi.org/10.1088/1464-4258/4/6/379
State	Published - 1 Jan 2002

Keywords

Optical distance measurement
Optical fibre applications
Sensor

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1088/1464-4258/4/6/379

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abstract = "Due to the very high magnetic and radio frequency fields and generally hostile environment inside cyclotrons, electronic devices are hindered from functioning. By implementing a modified triangulation method we developed a purely dielectric PC interfaced sensor head, which will be placed inside the cyclotron for electrode-position measurement. This represents a completely new cyclotron diagnostic tool designed to cope with cyclotron alignment problems. In this paper we present the motivations for developing such a sensor, the theoretical analysis, overall sensor design for two-coordinate simultaneous measurement and measurement results. A resolution of 10 μm within a 5 mm range was achieved independently of laser diode power variation, target reflectance variation and induced attenuation in optical fibres.",

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AU - Šelmić, Sandra

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AU - Prokin, Milan

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AB - Due to the very high magnetic and radio frequency fields and generally hostile environment inside cyclotrons, electronic devices are hindered from functioning. By implementing a modified triangulation method we developed a purely dielectric PC interfaced sensor head, which will be placed inside the cyclotron for electrode-position measurement. This represents a completely new cyclotron diagnostic tool designed to cope with cyclotron alignment problems. In this paper we present the motivations for developing such a sensor, the theoretical analysis, overall sensor design for two-coordinate simultaneous measurement and measurement results. A resolution of 10 μm within a 5 mm range was achieved independently of laser diode power variation, target reflectance variation and induced attenuation in optical fibres.

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A fibre-optic displacement sensor for a cyclotron environment based on a modified triangulation method

Abstract

Keywords

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