Order Spectrum Measurement (Order Tracking Analysis) - Adash VA4 Pro II User Manual

ADASH Adash 4400 – VA4Pro

Order spectrum measurement (order tracking analysis)

The Band fmax defines the range of spectrum. All frequencies over this range will be equal zero. To define this
range is necessary, when you need high number of orders. The required range is equal number of orders
multiplied by speed frequency. Be careful, higher Band fmax increases the minimum speed, which can be
used. This minimum you can see below (Low speed). When the speed is lower then this value, then error
appears and the measurement is stopped.
The number of revolutions is displayed below the number of orders (16 revs in image). Such number of
revolutions is needed for one spectrum calculation. We cannot display it in time, like for spectrum. One
revolution is the time quantity for order spectrum.
The 4 revolutions is the minimum number. It means that lines number must be 4 times greater then orders
number as the minimum.
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