Creo Training Institute in Madurai. We are leading Creo Training Centre in Madurai. Creo is the 3D CAD solution that helps you accelerate product innovation to build better products faster. Easy to learn, Creo uses a model-based approach to seamlessly take you from the earliest phases of product design to manufacturing, and beyond. The CRO is used to display a waveform that varies as a function of time. If the wave form is to be accurately reproduced, the beam should have a constant horizontal velocity. As the beam velocity is a function of the deflecting voltage, the deflecting voltage must increase linearly with time.