Study on the Dielectric Properties of Biomass Material of Tobacco Stems

Abstract:

An Agilent E4980A precision the LCR meter was used to estimate the effect of frequency, moisture content, position, location and variety on dielectric properties for biomass material of tobacco stems at microwave frequency of 2MHz. The dielectric properties of tobacco stems were significantly affected by frequency and moisture content. Both dielectric constant and dielectric loss factor rapidly declined first and then slowed with increasing frequency at lower moisture content. Increasing the moisture content, dielectric constant increased with the increasing frequency by orders of magnitude, while dielectric loss factor increased first and then decreased with dielectric relaxation emerging, where the dipolar relaxation frequency and the max of the dielectric loss factor also increased. Dielectric properties of the biomass material of tobacco stem were also affected by position, location and variety to some degree. The dielectric properties variation of K326 and Yun 87 was similar to each other which reflected their same genetic characteristics. At the frequency of 2MHz, dielectric constant and dielectric loss factor were mainly at 50-100 and 0.005-0.020, respectively.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 2570-2578
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.2570
• Online since: January 2013
• Authors: Wen Hua Zi, Xiao Long Zhang, Lan Wang, Jin Hui Peng, Lin Chen
• Keywords: Biomass Material of Tobacco Stem, Dielectric Property, Frequency, Location, Moisture Content, Position, Variety

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