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General-purpose FFT Analysis Software
DS-0221 |
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The DS-0221 series is basic FFT analysis
software. Each model has V, W, or X at the end of the model name
according to its number of channels. DS-0221V is for 2-ch,
DS-0221W is for 4 to 8-ch, and DS-0221X is for 10 to 32-ch.
Connecting DS-2000 main unit to PC under operating environment
for Windows (Windows2000 / XP / VISTA), frequency analysis with
high-accuracy (more than 100dB for dynamic range),
high-resolution (maximum at 6400 FFT lines) and high-speed
(real-time analysis frequency range; 40kHz/4-ch) can be
performed. User-friendliness in a unified with Windows-based
software enables easy operation such as copy and paste of data. |
Specifications
（１）Analysis section
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The model of input units |
DS-0262A/0264A |
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Frequency range |
4 mHz to 40 kHz (2 to 16-ch)
4 mHz to 20 kHz (18 to 32-ch) |
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The number of sampling points |
64, 128, 256,
512, 1024,
2048, 4096,
8192, 16384 |
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The number of spectrum lines |
25, 50, 100,
200, 400,
800, 1600,
3200, 6400 |
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Window function |
Rectangular, Hanning, Flat-top, Force window, Exponential
window ,
User-defined window |
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FFT calculation |
32-bit floating point |
（２）Display/Calculation Function
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Time domain |
Time-axis waveform, Auto/cross-correlation function, Impulse
response, Orbit (Lissajous), Cepstrum, Time envelope |
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Amplitude domain |
Amplitude probability density function／Distribution function |
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Frequency domain |
Power
spectrum, Linear spectrum, Power spectrum density, Energy
spectrum density, Phase spectrum, Fourier spectrum, Liftered
spectrum, Cross spectrum, FRF
(real), Imaginary, Nyquist
diagram, FRF calculation (H1,
H2), FRF Equalize, Coherence
function, Coherence output power, Coherence blanking, 1/1,
1/3 Octave analysis (Bundle of power
spectrum) |
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Calculation function |
Inverse Fourier transform, Frequency differential and
integral calculus, Hilbert transform, Opening and closing
loop calculation, Damping ratio calculation, FRF Reciprocal
calculation, Four arithmetic calculation |
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Other displays |
List
display , 3D display |
（３）Input/Output function of data
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Data file |
Binary,
TXT (.txt) |
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Time record memory |
128MB
memory : continuous writing of
time-sampling data |
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Analysis condition file |
Open/Save of arbitrarily measurement condition file |
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Print function of data |
Print
function by install of printer driver |
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Copy function of data |
Pasting
data on clipboard at text or bitmap format |
Applications for general-purpose FFT analysis
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Applications |
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- Noise/Vibration analysis for refrigerator, washing machine,
air conditioner etc.
- Noise/Vibration analysis for printer, copy machine etc.
- Vibration analysis for hard disk driver
- Analysis for automobile vibration or cabin noise
- Diagnosis of bearing
- Diagnosis of gear
- Vibration analysis for motor, turbine, and compressor etc.
- Vibration analysis for machine tool
- Measurement of rotational fluctuation
- Frequency response measurement of structure with impulse
excitation
- Vibration characteristic analysis for bat, tennis-racket,
golf-shaft etc.
- Operating deflection shape animation for automotive frame
etc.
- Frequency characteristic analysis for speaker
- Noise analysis for ring alert of mobile phone
- Evaluation of flicker in liquid crystal display
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