Integral Fuel Cell Impedance Analyzer

The Amrel/American Reliance integral impedance analyzer (IA) is designed to work with the AMREL line of e-Load electronic loads. This eliminates the need for a frequency response analyzer, saving the customer over $20,000 on additional test equipment.

The unit is designed to simplify applications in impedance measurement, electrochemistry (EIS) and fuel cell and battery testing/research. For hassle-free AC modulation applications, the IA outputs an AC signal superimposed onto a DC bias signal – to achieve operating currents of up to 5000Adc. User-friendly features include auto-gain control for accurate small signal measurement down to the micro-ohm range, saturation protection to prevent signal overload, auto-zero calibration for increased accuracy and auto-amplitude feature for ac modulation.

Precise control is available through configurable sampling intervals to balance between throughput and resolution, 4 display modes and operating current display, frequency and amplitude sweep displayed in Bode and Nyquist plots and V/I waveforms critical to EIS, and selectable gain control. Full functionality is available through VFD display/full-functional keypad and via GPIB/USB/Ethernet/RS-232 remotely using AMREL’s application program.

The IA offers a frequency and amplitude range with accuracy of 0.1%, and distortion less than 0.1% to provide precise signal generation. Impedance analysis applications can be realized through a frequency sweep of .1Hz ~ 20kHz and an amplitude sweep of up to 1Vrms and 5Vdc bias, capturing critical test data down to the micro-ohm range displayed on a log/linear scale. Only 1U high in size, AMREL’s Impedance Analyzer packs a powerful and effective AC + DC sine generator.

For more information, visit www.amrel.com.