AC complex impedance的用法和样例：
- The AC complex impedance method is widely used to charactrize electronic materials.
- In this paper, the complex impedance property of PTC ceramics has been investigated.
- When grain resistances have big differences duo to grain size and the capacity of the high resistance is taken into consideration, the complex impedance plots show two separated semicircles.
- Antenna design requirements: frequency band size and form read range application with mobility cost reliability rfid tag antenna performance strongly depends on the frequency-dependent complex impedance present by the chip.
- After successfully prepared the nano- TiO_2, nano- CeO_2 coating TiO_2,the measurement and comparison of oxygen sensitivity and complex impedance have been carded out, and the results have been analyzed by thermodynamic and activity energy calculation.