National-instruments Order Analysis Toolset Uživatelský manuál stáhnout pdf (Strana 5)

Contents

LabVIEW Order Analysis Toolset User Manual vi ni.com

Chapter 3

Gabor Transform-Based Order Tracking

Overview of Gabor Order Analysis............................................................................... 3-1

Extracting the Order Components ................................................................................. 3-3

Masking .........................................................................................................................3-5

Extracting Orders ............................................................................................ 3-6

Reconstructing the Signal ............................................................................... 3-7

Displaying Spectral Maps.............................................................................................. 3-8

Calculating Waveform Magnitude ................................................................................ 3-10

Chapter 4

Resampling-Based Order Analysis

LabVIEW Order Analysis Toolset Resampling Method............................................... 4-1

Determining the Time Instance for Resampling ........................................................... 4-2

Resampling Vibration Data ........................................................................................... 4-4

Slow Roll Compensation............................................................................................... 4-5

Chapter 5

Calculating Rotational Speed

Digital Differentiator Method........................................................................................ 5-1

Averaging Pulses ........................................................................................................... 5-3

Appendix A

Gabor Expansion and Gabor Transform

Appendix B

References

Appendix C

Technical Support and Professional Services

Glossary

Index

1 2 3 4 5 6 7 8 9 10 ... 62 63

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National-instruments Order Analysis Toolset Uživatelský manuál Strana 5