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D-VD-0N

Product catalog summary

Overview: The Digital Velocity Decoder D-VD-0N is an ultrafast FPGA-based digital signal processing device used in Optomet Vibrometers. It provides a fully digital read-out of measurement data, avoiding issues related to analog demodulation such as component aging, temperature dependencies, noise, and non-linearities. This results in higher sensitivity, better resolution, and stability.

Highlights:

Digital decoder with a frequency range of 0 Hz to 100 kHz.
Maximum velocity measurement up to 2.5 m/s.
Resolution down to 12 nm s^-1/√Hz.
Max. linearity error of 0.5%.
Seven velocity measuring ranges.

Technical Specifications:

Frequency range: 0 Hz - 100 kHz.
Max. velocity: 2.5 m/s.
Resolution: 12 nm s^-1/√Hz.
Max. linearity error: 0.5%.
Seven velocity measuring ranges.

Range Diagram:

Position 1: Full Scale Output (Peak) 0.0245 m/s, Typical Resolution 0.012 µm s^-1/√Hz, Signal Frequency Range 25 kHz, Max. Acceleration 392 g.
Position 2: Full Scale Output (Peak) 0.049 m/s, Typical Resolution 0.018 µm s^-1/√Hz, Signal Frequency Range 50 kHz, Max. Acceleration 1,560 g.
Position 3: Full Scale Output (Peak) 0.1225 m/s, Typical Resolution 0.024 µm s^-1/√Hz, Signal Frequency Range 100 kHz, Max. Acceleration 7,800 g.
Position 4: Full Scale Output (Peak) 0.245 m/s, Typical Resolution 0.05 µm s^-1/√Hz, Signal Frequency Range 100 kHz, Max. Acceleration 15,600 g.
Position 5: Full Scale Output (Peak) 0.49 m/s, Typical Resolution 0.10 µm s^-1/√Hz, Signal Frequency Range 100 kHz, Max. Acceleration 31,300 g.
Position 6: Full Scale Output (Peak) 1.225 m/s, Typical Resolution 0.20 µm s^-1/√Hz, Signal Frequency Range 100 kHz, Max. Acceleration 78,400 g.
Position 7: Full Scale Output (Peak) 2.5 m/s, Typical Resolution 0.29 µm s^-1/√Hz, Signal Frequency Range 100 kHz, Max. Acceleration 160,000 g.

Contact Information: For more information, contact +49(0)6151-38432-0 or visit www.optomet.com.

Catalog excerpts

Digital Velocity Decoder D-VD-0N Ultrafast FPGA-based Digital Signal Processing Optomet Vibrometers feature an end-to-end FPGA-based digital signal processing allowing a fully digital read-out of the measurement data. Digital signal processing avoids any drawbacks of analog demodulation which may result from component aging, temperature dependencies, noise and non-linearities. Significantly higher sensitivity, better resolution, and stability are the benefits of OptoMET’s end-to-end digital signal processing. Extremely low noise levels produce precise results even from poorly reflecting measurement objects. HIGHLIGHTS: • Digital decoder • 7 velocity measuring ranges • Frequency range: 0 Hz - 100 kHz • Max. velocity up to 2.5 m/s • Resolution down to 12 nm s-1/√Hz • Max. linearity error: 0.5 % Start Velocity Decoder All vibrometers series feature by default a velocity decoder and can be supplemented with a suitable displacement and/or acceleration decoder. The D-VD-0N velocity decoder is the versatile solution for various types of non-contact vibration metrology tasks. With its 8 velocity measuring ranges, it can measure up to 100 kHz and thus well above the audible acoustic range. Digital signal processing provides excellent linearity and measur

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*1The resolution is defined as the signal amplitude (rms) that produces 0 dB signal/noise ratio with 1 Hz spectral resolution at 50 % fmax. *2In Scan-Mode: max. frequency 80 kHz *3In Scan-Mode

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