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Proceedings Paper

Obstacle detector for the use with electric windows in vehicles
Author(s): Matjaz Linec; Denis Donlagic
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Paper Abstract

This paper presents a low cost fiber optic obstacle sensor. The detector is primarily developed for the use in applications like the electric windows in vehicles. Sensor relies on flexible and all polymer design and it based on micro bend losses in plastic optical fiber (POF). When designing the sensor high priority was given to the low cost components and materials that are already in use in the automotive industry. The durability tests were executed on the detector prototypes by continuously pressing on the same place of the sensing area, with a force of 50 N, at temperatures near to the maximal operating temperature of the POF. The results show that the obstacle is clearly detected after more than 10.000 continuous presses. The sensor solution presented in this paper can be used in other applications where obstacle presence detecting is required like are electric doors on buses, other power driven automatic doors, In-Circuit Testing devices (ICT), security sensors for windows, etc.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66190Z (2 July 2007); doi: 10.1117/12.738380
Show Author Affiliations
Matjaz Linec, Univ. of Maribor (Slovenia)
Denis Donlagic, Univ. of Maribor (Slovenia)

Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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