Lo scenario
An Apple Watch biosensor requires electrochemical impedance spectroscopy to characterize electrode-tissue interface. A precision amplifier measures nanoamp currents while a frequency sweep generator probes multiple frequencies.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
Adopted three-electrode potentiostat topology
02
Modeled electrochemical cell as Randles circuit
03
Used a transimpedance amplifier with gain resistor for current-to-voltage conversion
Suitable for any low-current AC impedance measurement in wearable biosensors, corrosion monitoring, or battery health assessment.