Moisture content detection based on transmission power measurement using a microstrip wide-ring sensor

• Main Authors: Hou, Kit Mun, Kok, Yeow Hou, Dimon, Mohamad Ngasri
• Format: Conference or Workshop Item
• Published: ATLANTIS PRESS 2016
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/66686/; http://download.atlantis-press.com/php/download_paper.php?id=25845683
• Institution: Universiti Teknologi Malaysia

This paper proposes a microstrip wide-ring sensor for moisture content (MC) determination based on transmission power measurement. The microstrip wide-ring sensor with low insertion loss was designed to operate at frequency range from 1 GHz to 3 GHz. Calibration equations for measurement of MC at 2.50 GHz and 2.60 GHz were obtained and validated with white rice for MC ranging from 10% to 28%. The lowest error in MC prediction was 1.75% at 2.50 GHz.