Design and analysis of a capacitive moisture sensor for municipal solid waste

作者：Fuchs Anton^*; Zangl Hubert; Holler Gert; Brasseur Georg

来源：Measurement Science and Technology, 2008, 19(2): 025201.

DOI：10.1088/0957-0233/19/2/025201

• moisture content
• municipal solid waste
• capacitive sensing
• sensor analysis

This paper presents a capacitive sensor conception to measure the moisture content ( MC) in municipal solid waste that is primarily used for energy recovery by means of combustion. The sensor principle is based on a two-channel I/Q measurement of the complex impedance of the waste. The specific design of the sensor front-end allows for a robust MC determination in a non-contacting manner. In this paper, a detailed analysis of the sensor performance, including an estimation of the sensor cross-sensitivity on saline contamination and on metal components in the waste, is provided. Experiments are conducted under laboratory conditions and measurement results are presented.

• 出版日期2008-2