상황
Designing a low-cost portable device to measure apple ripeness using electrical impedance spectroscopy with the AD5933 chip.
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01
Choice of AD5933 as integrated impedance analyzer
02
Modeling apple impedance as parallel RC circuit
03
Using external feedback resistor and capacitor to set gain and bandwidth
When building a portable EIS system for fruit quality assessment or other biological impedance measurements with a frequency generator and DFT-based analyzer.