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Proceedings Paper

Optical pressure sensor based on the combined system of a variable liquid lens and a point diffraction interferometer
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Paper Abstract

In this work we present an experimental proposal for an efficient optical pressure sensor based on a Variable Liquid Lens (VLL) and a modified Point Diffraction Interferometer (PDI). The working principle of the proposed sensor relies on the fact that a pressure variation induces a change in the lens curvature and hence in its focal length which can be tracked and measured with the interferometer. The pressure is then measured by recording and processing the interferometric images. The calibration of the sensor in this proposal demonstrated a working range of 0-26 kPa with an accuracy of less than 0.1 kPa in the whole range.

Paper Details

Date Published: 25 October 2011
PDF: 7 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801122 (25 October 2011); doi: 10.1117/12.903387
Show Author Affiliations
Anmi García-Arellano, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Manuel Gómez-García, Univ. de Santiago de Compostela (Spain)
Eva Acosta, Univ. de Santiago de Compostela (Spain)


Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Rufino Díaz-Uribe; Rufino Díaz-Uribe, Editor(s)

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