Development of a virtual sensor (DVS®) in order to provide nonlinear temperature compensation for inline measuring system, applied on high-speed machining for ballscrew production. This kind of compensation is needed to estimate the pitch and P.C.D. ballscrew measurements at ambient temperature. The required real-time measurement are temperature of the piece worked part (hot temperature), temperature of the piece cold part (ambient temperature) and measurement of the piece dimensions in hot temperature conditions.