The polaroid ultrasound ranging system has been interfaced to an Apple IIe computer. Sufficient resolution is achieved to permit calculation of velocity and acceleration derivatives. The interface is described and the graphical results of several air‐track experiments are presented.

This content is only available via PDF.
AAPT members receive access to the American Journal of Physics and The Physics Teacher as a member benefit. To learn more about this member benefit and becoming an AAPT member, visit the Joining AAPT page.