VISPIRON-ROTEC is recognized as a specialist in the area of torsional vibration testing. ROTEC emphasizes on high-speed-digital-data acquisition and analysis. ROTEC equipment is used throughout the world by test and development engineers for investigations both in vehicles and in the NVH laboratory, mechanical engineering, and related supplier industries. ROTEC, develops and manufactures portable, PC-based equipment for multichannel measurement and analysis of noise and vibration.