Elekta Neuromag NM21283A, User Manual

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8 Basic measurements
50 NM21283A-A
The FFT measurement results can be displayed using following view
modes:
FFT
This mode shows the sensor/environment noise level. Overview
shows three sets of bars superposed on top of each other. Bars from
front to back: aliasing noise level (white), white noise level (red),
and low frequency noise level (black). All noises are displayed in
RMS (per
). Single channel view shows the RMS spectrum of
the selected channel.
8.8 Signal
This job measures a sample of time signal trace. The length of the trace is
controlled by the parameter TimeBufSize in parameter set “FFT measure-
ments”. When this job is selected, the single channel view shows the time
trace of that particular channel. The overview mode shows the last FFT
measurement result, if any.
Hz