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New Advanced
The base menu for definition of measurements appears. The content of the menu is implication of the
measurement Type selection (first row).
Channel
1, .., 4
Unit
name
whether and how many integrations should be used.
Detect Type
RMS, Scaled 0-P, Scaled P-P, True 0-P, True P-P, AVG, Crest, Kurtosis
The detected value property ( P means Peak).
Scaled 0-P
it is equal 1.414 * RMS
True 0-P
it is true 0-peak value in the waveform (the highest value captured in time signal).
Scaled P-P
it is equal 2.828 * RMS
True P-P
it is true peak-peak value in the waveform (the difference between highest positive and highest
negative value in signal)
AVG
it is average value of all samples (total sum of absolute values divided by number of samples)
Crest
it is equal True 0-P/ RMS
Kurtosis
standard statistical formula for Kurtosis
Result Type
H1, H2, H3
noise, H3 - the average of H1 and H2.
Band fmin (Hz) value
before evaluation. The none value means, that only input DSP filter is applied ( approx. 0,6 Hz).
Band fmax(Hz) value
before evaluation. Under this item is also displayed the information about sampling frequency (fs=), which be
applied for evaluation.
DEMOD fmin (Hz)
signal (removing low frequencies).
DEMOD fmax(Hz)
signal (removing high frequencies).
Input channel
Output channel
FFT Window
windows functions.
Zoom spectrum
Center freq
Range
information about sampling frequency (fs=), which be applied for evaluation.
ACMT FS(Hz)
for understanding.
Trigger control
Number of triggers
Samples
time length is displayed under this item.
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The input signal source channel for evaluation.
The required unit for results and graph. This information is used for decision
Standard frequency response functions, H1- input noise, H2 - output
The low cut-off frequency of band pass filter, which is applied to the signal
The high cut-off frequency of band pass filter, which is applied to the signal
value
The low cut-off frequency of band pass filter, which is applied to the
value
The high cut-off frequency of band pass filter, which is applied to the
1, .., 4
Required only for response functions.
1, .., 4
Required only for response functions.
Rectangular, Hanning, Transient, Exponential
no
standard spectrum will be made (range fro zero)
yes
zoom spectrum will be made (range around the center frequency)
value
center frequency for zoom spectrum
value
Frequency range of the graph. Under this item is also displayed the
value
The sampling frequency for ACMT evaluation. See the ACMT chapter
off
Time signal will contain defined number of samples
on
Time signal will contain defined number of triggers (e.g.revolutions)
value
Required number of revolutions ( Speed control = on)
value
Number of samples ( Speed control = off). The correspondent signal
40
Adash 4400 – VA4Pro
The standard offer of FFT
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