Whether dubbed motion oscilloscopes, motion-capture systems, or servotuning systems, PC-based software packages that let designers examine the performance of their motion system have become indispensable for many motion design projects.

One such product is ProMotion, a motion exerciser and tuning package offered by Performance Motion Devices that offers features typical for these packages. The centerpiece of this program is a motion oscilloscope function, which allows one or more variables to be captured in real time and plotted on the screen or saved to a file.

Most capture systems offer millisecond, if not microsecond accuracy in their data capture using dedicated hardware for precise synchronization. For example, ProMotion works in conjunction with Navigator motion processors, which store various real-time motion parameters such as encoder position, servo lag, desired position along with many others directly onto a hardware memory buffer on the motion card.