ELECTRONICS
Apple EIS Front-End with AD5933
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CASE ANALYSIS
Scenario
Designing a low-cost portable device to measure apple ripeness using electrical impedance spectroscopy with the AD5933 chip.
Key decisions
- Choice of AD5933 as integrated impedance analyzer
- Modeling apple impedance as parallel RC circuit
- Using external feedback resistor and capacitor to set gain and bandwidth
When to reuse this
When building a portable EIS system for fruit quality assessment or other biological impedance measurements with a frequency generator and DFT-based analyzer.
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