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| Frequency Response Analyzer- CAPSYS FRA V2.1 |
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Using the swept sine technique the CAPSYS FRA 2.1 provides precise measurement of gain and phase between any two points in a system. This fully digital technique is used to assess the performance of both simple and complex systems, applying the power and sophistication of modern measurement technology; simple in concept, fast and precise in performance and easy to use.
The CAPSYS FRA V2.1 is specifically designed system to make high-accuracy measurements for applications such as audio analysis, Material testing, environmental noise testing, and stabilization of control loops that require frequency analysis of signals. The device under test is stimulated by a sine wave and responses are then correlated with the stimulus to determine the amplitude and phase relative to the generator.
The ratio of the two measured signals then provides the system transfer function. CAPSYS FRA has two Channels of 16 bit simultaneously sampled input at 204.8 kS/s and two Channels of simultaneously updated output at 51.2 kS/s Both the analog input and the analog output circuitry have over sampling delta-sigma modulating converters. Delta-sigma converters are inherently linear, provide built-in brick-wall anti aliasing / imaging filters, and have specifications that exceed other conventional technology, with regard to THD, SNR and amplitude flatness. So FRA can be used for applications include audio signal processing and analysis, acoustics and speech research, sonar, audio frequency test and measurement, or any application requiring high-fidelity signal acquisition or generation of signals with a bandwidth up to 20 kHz. The software is capable of computing cutoff frequencies and displays it in graphical and numerical format. |
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FRA's key software features include:-
- Swept Sine analysis ,custom frequency sweep and generator modes
- Online computation of cutoff frequencies and Bode plot display of Gain and Phase for closed loop analysis
- Online computation of gain margin and phase margin and Bode plot display of Gain and Phase for open loop analysis
- Linear and Logarithmic type for gain phase display with phase wrap up
- Load and save configuration files
- Saving analysis results in Excel format
- Offline analysis of Acquired data by cascading custom compensator function.
- Printing Gain and Phase plots.
FRA's key hardware features include
- Differential type input and output channel
- 24-bit delta-sigma type ADC with 118db dynamic range
- AC amplitude range - 1mV to 10V Peak
- Analyzer range - +/-42 V
- DC bias upto 10V pk
- High sampling rate from 5 kS/s to 204.8 kS/s in increments of 181.9 µS/s
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