Rain Sensor with Stacked Light Waveguide Having Tilted Air Gap
Author
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Vehicle sensor to detect rain drop on and above waveguide utilizing light deflection and scattering was realized, keeping wide sensing coverage and sensitivity to detect mist accumulation.
Proposed sensor structure under stacked light wave guide consisted of light blocking fixture surrounding photodetector and adjacent light source.
Tilted air gap between stacked light waveguide and light blocking fixture played major role to increase sensitivity and to enhance linearity.
This sensor structure eliminated complex collimating optics, while keeping wide sensing coverage using simple geometry.
Detection algorithm based on time-to-intensity transformation process was used to convert raining intensity into countable raining process.
Experimental result inside simulated rain chamber showed distinct different response between light rain and normal rain.
Application as automobile rain sensor is expected.
American Psychological Association (APA)
Choi, Kyoo Nam. 2014. Rain Sensor with Stacked Light Waveguide Having Tilted Air Gap. Journal of Sensors،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1042964
Modern Language Association (MLA)
Choi, Kyoo Nam. Rain Sensor with Stacked Light Waveguide Having Tilted Air Gap. Journal of Sensors No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1042964
American Medical Association (AMA)
Choi, Kyoo Nam. Rain Sensor with Stacked Light Waveguide Having Tilted Air Gap. Journal of Sensors. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1042964
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1042964