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 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.

Configuration:
Main unit (measurement and analysis), monitor (display), keyboard, trackball (pointing device),
* Can be connected a printer to the main unit.  (Recommended printer: HP Officejet 100, HP Officejet H470)

Capable of measuring from ultra-low frequency ranges
Measurement frequency: 0.1 mHz to 15 MHz

Supports measurement of power devices and high-voltage circuits
Maximum input voltage: 250 Vrms; Dynamic range: 140 dB

Extensive range of measurement sweep parameters and high density
sweeping of the frequency axis
Sweep parameters: Frequency, AC amplitude, DC bias, time

Isolation between all inputs and outputs
Isolation voltage: 250 Vrms

Functions available to provide improved measurement data reliability
Open/short correction, integration and equalization, etc.

Amplitude compression (pseudo-constant current output measurement)

A wide array of optional peripheral devices are available, such as a power amplifier for amplifying the driving signal and fixtures for the measurement of various items.

Administration of measurement conditions and results data

User-friendliness and data management just like those of a personal computer

Automatic repetition measurement

Measurement support

Linkage with external devices
Equipped for control I/O 8 channels

Data logging
Equipped for analog signal input

Linkage with the user system
A software developer kit (SDK) is provided.

Results from a simulator: Who knows what they mean?
Conventional LCR meters and impedance analyzers can’t measure what you need!

To correctly evaluate the characteristics of electronic components and circuits, it’s fundamental to make measurements in an actual operating environment.

Impedance Measurement of Electronic Components

Inductors and capacitor are used in large quantities in electronic equipment. To design high-performance equipment, it’s extremely important to accurately know the characteristics of electronic components used in equipment. LCR meters or impedance analyzers are generally used for measuring electronics components; however, measurable voltage and current are as small as a few volts and about several milliamperes. Some components are used under a voltage of 100 V or higher and current of 10 A or higher. The values measured by LCR meters and impedance analyzers may differ from those of actual operating conditions.
ZGA5920 provides measurements under actual operating conditions, with its
• High-voltage input, • Wide dynamic range, • Isolation between inputs and outputs,
• High-voltage, high-current power driver amplifier and • Measurement adapter with a current detector circuit. In measuring and evaluating piezoelectric elements that are used as actuators, it really excels.

Measurement of Loop Gain of the Switching Regulator

To evaluate the stability of the circuit, loop gain is measured. ZGA5920:
• Injects the signal into the loop, and measures the open loop gain under closed loop operating conditions.
• Automatically calculates the phase margin and the gain margin that are used in quantitatively evaluating stability.