Navigation:  Tutorials > Dynamic signal analysis tutorials > Human vibration > DEWESoft 7.0  data acquisition, processing, analyzing and storage software Input channel setup

To use the human vibration module, please first select at least three vibration analog channels in the Analog tab. Then switch to the Human vibration tab and click the button to add a new Human vibration module. Several modules can be used within a setup, and we will need three channels for each module.

 

If we have a calibration sheet for the sensors, enter the Sensitivity in the analog input setup screen (see the Vibration measurement tutorial for details on how to do sensor calibration in the analog Channel setup).

The next step is to assign them in the Input section of the Human vibration module. We should then already see our live values in the calibration part of the screen.

 

Calibration

If we want to perform a calibration with the calibrator, we can perform it here - in the Human vibration module itself. First enter the Reference value of the vibration. This can be read from the calibrator. Usually (let's take this as an example), the calibration levels are 10 m/s2 peak, which is 7,07 m/s2 RMS or 0,72 g. We need to enter this value in the Reference value field.

As soon as we mount the sensor on the calibrator, we should see the amplitude and the frequency of the signals. In this case we see that we applied the sensor in the Z direction. The frequency of the calibration is below 200 Hz (80 or 160 is typical, in our case it is 80 Hz). This is a simple to make sure that everything is working correctly.

 

Uncalibrated

The next simple step is to click the Calibrate button near the axis that is currently calibrated. As soon as we do this, we will see sensor sensitivity in mV/g, which can be checked against the sensor calibration certificate. A small percentage of difference is acceptable.

 

Calibrated

Now we can see the calibrated live RMS value of the vibration (0,72 g) .