Atmospheric Icing Sensors - Capacitive Techniques

The application of capacitive sensing technique is widely distributed in different physical domains primarily because of the diversity in dielectric permittivity and due to its minimum loading error and inertial effects. Atmospheric ice is a complex mixture of water, ice and air which is reflected i...

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Bibliographic Details
Published in:Sensors & transducers 2013-01, Vol.18 (1), p.24-24
Main Authors: Mughal, Umair N, Virk, Muhammad S
Format: Article
Language:English
Subjects:
Arktisk teknologi / Arctic Technology
Atmospherics
Detection
Dielectric constant
Dielectric properties
Dielectrics
Error detection
Heat conductivity
Ice
Icing
Measurement techniques
Methods
Permittivity
Precipitation
Sensors
Snow
Technology: 500
VDP
Online Access:Get full text
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Summary:The application of capacitive sensing technique is widely distributed in different physical domains primarily because of the diversity in dielectric permittivity and due to its minimum loading error and inertial effects. Atmospheric ice is a complex mixture of water, ice and air which is reflected in its complex dielectric constant. There are many existing atmospheric icing sensors but only few are based on their complex dielectric permittivity measurements. This technique is very suitable because the capacitive variation in this mixture is due to the reorientation of water dipole in the electromagnetic radiation's oscillating field. This paper is a detailed understanding of some capacitive sensing techniques based upon dielectric variations and some existing capacitive based atmospheric ice sensing techniques. It is emphasized that the capacitive method proposed by Jarvenin (2008) provides maximum atmospheric icing parameters hence future atmospheric icing sensors may utilize the proposed technique with some modifications to further reduce the loading errors.
ISSN:2306-8515
1726-5479
1726-5479