An FFT Spectrum Analyser is a device which combines computer software and technology to produce record and analyse waveform data. It helps in analysis of digital waves using FFT (Fast Fourier Transform) technology.
FFT is a computer program to help in analysis of digital signals for audio, video and images. It also helps in translating time into frequency to help with the process. This technology is most commonly used in metrological investigations. It can record, analyse and store information on various platforms for scientific or other research.
ZETLAB is a Russian company dealing in providing high-accuracy measuring technology to metrological laboratories and manufacturers for data collection and analysis.
In the field of passive sonar signal processing, ZETLAB offers several FFT Spectrum Analyzers available in its products. These are as below:
FFT Spectrum Analyser of Vibro-Acoustic Signals ZET 034
This is a device with 4 analogue input ports and 1 output port, and a sampling frequency of up to 400 kHz. It has a dynamic range of 110 dB. It measures 280 x 200 x 35mm, weighing around 1 kg.
This spectrum analyser has the following main features:
This device can be especially designated for measurement of parameters of the spectrum, including vibrational, acoustic and hydro acoustic signals. It can also generate electrical signals for normalized metrological characteristics. It can function on its own or as part of a whole system for research purpose.
ZETLAB has specialized software for analysis named as ZETLAB ANALIZ. The software together with the analyser enables the user to do the following
ZET 017-U4 FFT SPECTRUM ANALYZER
This is very similar to the previous one. It has 4 analogue input ports and 1 output port, and a sampling frequency of up to 400 kHz. It has a dynamic range of 110 dB. It measures 280 x 160 x 75mm, also weighing around 1 kg.
This device from ZETLAB has the following specifications:
It can carry out the following functions:
This device allows the user to run several different software programs simultaneously. They can be linked together to collect and analyse data. This is especially useful to create systems for measuring, testing, controlling and monitoring technological processes.
ZET 017-U8 FFT SPECTRUM ANALYZER
This analyser has the double capacity of the previous two. It has 8 analogue input ports and 2 output port, and a similar sampling frequency of up to 400 kHz. It has a dynamic range of 120 dB. It measures 280 x 160 x 75mm, weighing around 0.8 kg, giving almost double the capacity in smaller size.
This spectrum analyser has the following important features:
Just like the U4 version, it also has the capability of the following functions:
The ZET 017-U8 FFT SPECTRUM ANALYZER can run several analytical and signal mapping programs at the same time to create whole systems for testing, process monitoring and control. It can carry out analysis in non-stationary modes. It is therefore useful for development of whole systems or processes rather than for simple data collection.it is portable which gives it an extra advantage for carrying out a wide range of functions.