Assessment of milk fat based on signal-to-ground voltage
作者： Shilin Wu , Huang Zhang , Yamei Jin , Na Yang , Xueming Xu
DOI: 10.1007/S11694-020-00733-5
关键词: Mathematics 、 Voltage 、 Transformer 、 System of measurement 、 Milk fat 、 Analytical chemistry 、 Electromagnetic coil 、 Cross-validation 、 Mean squared error 、 Glass tube
摘要: This study proposes an electromagnetic method for assessing fat content by measuring the signal-to-ground voltage in milk. The milk-filled spiral glass tube, acting as secondary coil of a transformer, under different magnetic fluxes at same frequency. measurement system included two connected sample coils close-loop configuration and open-loop configuration. four terminals was detected. results indicated that these had differential response characteristics, but their sum consistent regardless A linear correlation (R2 = 0.845 R2 = 0.941) observed between milk voltage. root mean square error (RMSE) calibration (RMSEC) 0.368 0.230 g/100 g content, respectively, whereas RMSE cross validation (RMSECV) 0.232 0.599 g/100 g (fat content) 700 Hz, respectively.
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