Table of Contents
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Contents
Octave Analyzer (Add-On) ........................................................................................... 6-23
Overload Detection........................................................................................................ 6-42
FFT Mode...................................................................................................................... A-1
FFT Analysis Questions.................................................................................. A-1
Zoom FFT Analysis Questions ....................................................................... A-3
Source Mode.................................................................................................................. A-5
Swept-Sine Mode .......................................................................................................... A-7
Octave and Level Analyzer Mode (Add-On) ................................................................ A-9
Appendix B
NI-DSA Software User Manual
Octave and Level Analyzers Software Architecture ........................ 6-24
Architecture of the Fractional-Octave Analyzer............................... 6-24
Exact and Preferred Frequencies ...................................................... 6-26
Summary of NI-DSA Octave Mode Functions ................................ 6-29
Level Measurements......................................................................... 6-30
Averaging Modes ............................................................................. 6-32
Linear Averaging................................................................ 6-32
Exponential Averaging....................................................... 6-34
Impulse + Linear Averaging .............................................. 6-35
Peak Averaging .................................................................. 6-35
Equal Confidence Averaging ............................................. 6-35
A-, B-, and C-Weighting .................................................... 6-36
Considerations for Octave and Level Measurements ....................... 6-36
Configuration Limits .......................................................... 6-38
Frequency Ranges............................................................................. 6-41
Settling Time .................................................................................... 6-41
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