NI Labview, SignalExpress, Power Spectrum (Spectra)
NI Labview, SignalExpress, Power Spectrum (Spectra)
(OP)
the top plot is in time domain the signal from an accelerometer. the bottom plot is in frequency domain.
i do not understand the unit of the power, (dB ref 1.0E+0 V/sqrt (Hz).
can anyone shine me some light?
thanks.
i do not understand the unit of the power, (dB ref 1.0E+0 V/sqrt (Hz).
can anyone shine me some light?
thanks.





RE: NI Labview, SignalExpress, Power Spectrum (Spectra)
Cheers
Greg Locock
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RE: NI Labview, SignalExpress, Power Spectrum (Spectra)
thanks.
RE: NI Labview, SignalExpress, Power Spectrum (Spectra)
TTFN

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RE: NI Labview, SignalExpress, Power Spectrum (Spectra)
The slight oddity is they have use V/sqrt(Hz) rather than V^2/Hz, but that is not uncommon, and the relationship is obvious.
I suggest you read and understand the section on engineering units and dB in this
https://www.google.com.au/url?sa=t&rct=j&q...
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: NI Labview, SignalExpress, Power Spectrum (Spectra)
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?