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FSA Signal Processors for LDV Systems FSA4000-X

SKU: FSA4000-1

The FSA series of signal processors is the most accurate and fast, designed for LDV applications. 

*A newer model of this product is now available.

Product Details

TSI’s Flow and Size Analyzer sets the standard in digital signal processing. Firmware-based, it is the fastest, most accurate signal processor ever offered for LDV applications. This compact device is available in two versions: the FSA 4000 and the FSA 3500. Both versions are high-performance digital burst processors offering a host of useful features to optimize data collection.


Model Description Doppler Frequency Range


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Signal Processor for 1-Channel LDV system 0.3 kHz to 175 MHz


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Signal Processor for 2-Channel LDV system 0.3 kHz to 175 MHz


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Signal Processor for 3-Channel LDV system 0.3 kHz to 175 MHz


Features & Benefits

  • High accuracy based on a combination of SNR-based burst detection, dynamic burst sampling rate selection, multi-bit sampling, and other techniques to maximize measurement resolution and accuracy
  • High doppler frequency – up to 175 MHz – is ideal for measurements in supersonic flows, turbulence research, hydrodynamic research, and more
  • Dynamic burst centering, a concept developed by TSI, allows the system to capture samples from the best segment (the middle portion) of each burst 
  • Optimized accuracy even from poor quality signals through the use of patented processing techniques
  • Fully controlled by the FlowSizer™ Data Acquisition Analysis and Display Software

Related Resources

  • Application Notes