期刊
COMPUTERS AND ELECTRONICS IN AGRICULTURE
卷 142, 期 -, 页码 545-551出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compag.2017.11.016
关键词
Capacitive sensor; Interdigital sensor; Wood moisture content; Printed circuit board
资金
- Prince of Songkla University [ENG601395S]
A low-cost, repeatability, and linearity inter digital capacitive transducer is proposed with an explanation of experimental results. The probe is in the form of a printed circuit board (PCB) with configuration of two interpenetrating comb electrodes, which is different from the configuration of the moisture content sensors available in the market and literature. The moisture contents of the tested rubber wood samples were in the range of 6-70%. The change in capacitance of sensing probe due to the change of moisture content inside rubber wood was detected by the modified bridge circuit. The performance of this sensor is 2% accuracy error with 0.98% precision error.
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