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home > Products > Measurement Instruments > Impedance Analyzer > ZGA5920
Product Information

Impedance/gain-phase Analyzer
Impedance/Gain-Phase Analyzer


This analyzer supports problem-solving by researchers and engineers
who are seeking to improve performance and reliability.

Improvements in the performance and reliability of electronic materials, components and circuits for electronic equipment have been increasingly called for in our society––one of remarkable technical advances in household electrical appliances, automotive electronic equipment and energy-saving power electronics equipment. ZGA5920 was developed as a comprehensive analyzer for measuring impedance and gain-phase, and for accurately determining the responses and performance of measurement objects. To provide the measurement information that researchers and engineers need, we offer a measurement environment that achieves highly reproducible measurements. ZGA5920 is as easy to use as a personal computer. In addition to having the functions of measurement, analysis, simulation using the analysis results, outputting of reports and data management, it’s equipped with functions including the ability to link with external devices, remote control, and the provision of measurement support information.


application palette

Application Pallet
11 types of measurement objects
  • Piezoelectric material
  • Dielectric material
  • Magnetic material
  • Inductor
  • Capacitor
  • Resistor
  • Transformer
  • Diode
  • Servo
  • Amplifier Circuit
  • Filter Circuit
  • Impedance measurement
  • Gain-phase measurement

Impedance and Gain-phase Measurement
A/D converted input signals undergo discrete Fourier transform (DFT) to calculate complex impedance values and obtain parameters and characteristics specific to the DUT, such as its capacitance, inductance and quality factor. Original NF algorithms are also applied to allow equivalent circuits made up of R, L and C along with the constants for those circuits to be estimated from the complex impedance spectrum obtained by sweeping the frequencies. In servo analysis, data such as the loop cycle gain and closed-loop gain are used to obtain transfer functions (circuit model) and run simulations of the loop cycle gain and closed-loop gain. This highly detailed and integrated analysis of a wide range of diverse characteristics makes this analyzer invaluable not just for materials research and the development of application products, but for problem solving in all sorts of fields. For measurements that are not among the 11 prepared types of measurement objects, User original way of evaluation and analysis is supported by provision of the graph display, data output and correction functions.

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