C1.1 - Miniaturized Impedance Measurement System for Battery Diagnosis

Uwe Troeltzsch & Olfa Kanoun
Battery diagnosis information is required for many applications. Relevant quantities are state of charge (SOC), ampere hour capacity and internal resistance. Impedance spectroscopy is a preferred method for battery diagnosis because of its ability to separate individual mechanisms due to their different frequency behavior. A prototype for a miniaturized low-cost impedance measurement system was realized especially for battery diagnosis. For impedance measurement a digital signal processing method was used. A sinusoidal signal was used as...
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