Vibration analysis is highly beneficial in different engineering sectors. However, in many real applications, vibration data acquisition may be challenging because of the accessibility of the demanded sensing positions and overall sensor costs for multi-position measurements. For this, virtual sensing technique has been widely proposed to replace physical sensors with the ability to resemble signals from real sensors. Based on this research background, IMS has developed a vibration sensing set-up for multi-position measurements. But the determination of sensor numbers and their positions in the early design phase should be scientifically discussed.