Time Signal Averaging - Adash VA5 Pro User Manual

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Time signal averaging

For averaging you need to set some trigger source in the Trigger Setting dialog, because only triggered time
signals can be triggered. Then define the number of averages.
You see the effect of averaging in decreasing of signal noise. The speed frequency is better seen. With the
cursor values are displayed also totRMS and tot0P values.
Time signal with DC offset (gap)
You can measure a gap value from DC channel simultaneously with a displacement time signal. This gap
value is added to the time signal.
How to connect a sensor
A displacement sensor must be connected to an AC and to a DC channel at the same time. You can find where
all channels pins take place in an Input channels chapter. You can order a cable with right connection from
your instrument vendor.
How to setup a sensor
Open Sensors menu and select used AC channel (the channel where the sensor is connected). Setup
sensitivity and other values like for every sensor. There is one more item for a displacement sensor, DC gap
channel. Its value is not defined by default. You need to enter the value of your DC channel here (this number
is usually same as the AC channel). Then setup an associated DC sensor (sensitivity, unit and position must be
same as in AC sensor).
Measurement
Setup and measure a time signal as usually. Time signal is modulated to a DC gap value measured from the
associated DC channel.
First picture shows the signal without gap
And the same signal with a gap
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Adash 4500 – VA5Pro