The moisture content in sand mould directly affects its usability and the quality of cast products. An intelligent measuring system integrated with microwave metering technology and single-chip technology available for moisture measuring of the mould sand was characterized with rapid response speed, high precision, robust system and reliable performances. The moisture content in mould sand was metered based on microwave energy attenuation and the temperature compensation realized by intelligent dispose. Two on-line metered signals, respectively with regard to moisture and temperature were conv...