FFT Spectrum Analyzers

by ZETLAB company

FFT spectrum analyzer manufactured by ZETLAB company with various application software and hardware configurations offers turnkey solutions in the areas of vibration and acoustic measurements.

On the base of a single analyzer it is possible to create multiple-task hardware systems perfectly suitable for testing procedures, as well as for process control monitoring.

A wide range of analyzers` design variants (portable, industrial, underwater etc.) and PC-connection interfaces allow to use the FFT signal analyzer in various systems, such as stationary, mobile, standalone, industrial, distributed and dynamic; the analyzers show unmatched reliability in different environments.


The analyzer equipment set includes primary transducers (accelerometers, hydrophones, microphones, RPM-sensors etc.) allowing to conduct vibration, acoustic and hydroacoustic measurements, as well as testing and balancing of rotation machineries and gear units.


Key Functions

Спектральный анализ


This type of analysis is frequently applied for vibro-acoustic analysis of various electric drive mechanisms, since it ensures the best frequency resolution, enabling to highlight tones, detect harmonics and structural resonances.

Долеоктавный анализ

Constant Percentage Bandwidth (Fractional-Octave Analysis)

Standardized analyses employing digital filters on the base of fractional octaves: 1/3-, 1/12- and 1/24-octave bandwidth for machinery vibration monitoring, noise analysis and sound intensity level defining.

Порядковый анализ

Rotor Balancing and Gear Unit Testing

Tensions and strains occurring in rotary and reciprocating mechanisms can cause forced vibrations and related undesirable noises.
Order analysis is one of the most convenient and efficient testing methods for balancing rotary mechanisms and gear units.

Модальный анализ

Modal Analysis and Resonance Detection

This type of analysis is applied for processing and visualisation of vibration signals and vibration signal spectrum; modal analysis is perfectly suitable for automatic detection of resonance, phases; as well as peak amplitude ratio and damping ratio of mechanisms, parts, constructions and other objects by the free-oscillation method at shock excitation.

korrelyatsionnyiy analiz


This method is applied for detection and location of high-intensity noise sources in complicated mechanisms, or for measuring reverberation time at designing of chamber music halls that are supposed to have a certain reverberation time for optimal performance.

Вейвлет анализ

Speech Recognition 

For the tasks of speech processing and recognition the wavelet analysis is applied.
By means of wavelet-transform it is possible to implement recognition method of the distorted phonemes and teach the right articulation to the people with congenital deafness.

Noise and Vibration measurement 

Noise measuring procedures are carried out according to the requirements of IEC 61672-1:2002.

Диаграмма Найквиста

Nyquist Diagram

Frequency response in complicated mechanisms.
On the diagram the amplitude/frequency and phase/frequency characteristics are combined.

Снятие АЧХ

Transmission Characteristics and Frequency Response. 

Frequency response determination of the constant, alternating or selective value of signal in the logarithmic or linear scale.

Обработка сигналов

Signal Recording 

Processing of signals, coming from the input channels of analyzers, can be conducted both in the real-time mode and in the playback mode. Signals can be recorded simultaneously on several channels (from 2 to 128).

Директива 2011/65/EU (ROHS, ROHS II)

Dynamic Signal Analyzers conform to the requirements of the Directive 2011/65/EU (ROHS, ROHS II) on the restriction of the use of certain hazardous substances (Pb, Hg, Cd, Cr(VI)) in electrical and electronic equipment and manufactured in conformity with the lead-free technology, according to the EU requirements.

On the base of ZETLAB multi-channel analyzers applying the powerful graphical programming environment SCADA ZETVIEW you can create and combine the unique virtual instruments, measuring systems, automated working places and testing workbenches.

SCADA ZETVIEW has been designed to simplify complex working processes. For this purpose, the system is equipped with a wide range of components enabling project construction of any difficulty level.

SCADA ZETVIEW  is perfectly suitable for designing of completely autonomous projects that can conduct in standalone mode measurements, analysis procedures, project control and presentation of results. That is why all you need is initiate the project, the rest is done by the system.

Система визуализации испытаний