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- W4289138222 abstract "Precision fertilization is one of the important links in the precision agricultural operation system. In recent years, the demand for precision fertilization in facility greenhouse has become more and more urgent. As such, this paper designs an accurate and practical fertilization on-line monitoring system. The system adopts capacitance conversion chip PCAP01 and SCM STM32F103C8T6 to build a capacitance detection circuit. The effective acquisition of differential capacitance sensor microcapacitor signal output under this system is realized. The response relationship between the mass flow and the sensor capacitance output was studied, and a linear fitting model of fertilization was established. According to the prediction, the model determination coefficient was 0.9997. The experiment shows that the system has good adaptability to ambient temperature. The average measurement error is 1.13%, which meets the technical requirements of flow measurement. The capacitive fertilization online measurement system provides an effective way for the on-line acquisition of fertilization flow. It is of great significance for the implementation of high-precision variable fertilization." @default.
- W4289138222 created "2022-08-01" @default.
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- W4289138222 date "2022-04-30" @default.
- W4289138222 modified "2023-09-27" @default.
- W4289138222 title "DESIGN AND TEST OF REAL-TIME MONITORING SYSTEM FOR NON-CONTACT FERTILIZATION FLOW" @default.
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- W4289138222 doi "https://doi.org/10.35633/nmateh-66-35" @default.
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