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Vol. 205, Issue 10, October 2016, pp. 45-52

 

Bullet

 

To Measure Relative Permittivity of Atmospheric Ice
Using Frequency Sweep
 

1 Umair N. Mughal and Beibei Shu

Arctic Technology Research Team, Institute of Industrial Technology, UiT The Arctic University of Norway, 8505-Narvik, Norway
1 Tel.: +47 76966372

1 E-mail: umair.n.mughal@uit.no

 

Received: 25 July 2016 /Accepted: 30 September 2016 /Published: 31 October 2016

Digital Sensors and Sensor Sysstems

 

Abstract: The use of AD59333 IC for detecting atmospheric ice and atmospheric ice type was evaluated in this article. A prototype circuit was developed and was tested using a frequency sweep from 40 Hz to 20 kHz. The IC was calibrated using 100 kW resistor. The real and imaginary components of discrete Fourier transform were recorded at each frequency increment in order calculate the gain factor at each frequency increment. The unknown impedance was then calculated at each frequency increment. Results reflect that it was possible to use the dielectric loss data to detect an icing event and however it was difficult to determine icing type using AD5933 IC.

 

Keywords: AD5933, Atmospheric ice, Conductivity, Dielectric Constant, Dissipation factor, Frequency sweep.

 

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