作者: Michele Norgia , Alessandro Pesatori
DOI: 10.1109/I2MTC.2012.6229241
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摘要: This work describes the development of an optical sensor for measuring moisture level clay, during building material production. The measurement principle is well-know: reflection meter at different wavelength in infrared region. aim this research design a low-cost compact sensor, realized without moving parts or filter, by means couple telecommunications lasers 1300 nm and 1550 nm. Custom low-noise electronics allows rejecting ambient light disturbances digital processing makes system independent clay distance.