Briefly, in accordance with one or more embodiments, a method to test one or more sensors of a device under test may comprise capturing visual motion data of the device under test disposed on an arm of a pendulum apparatus while the arm of the pendulum apparatus is in motion, capturing data from the one or more sensors while the arm of the pending apparatus is in motion, and comparing the visual motion data with the data from the one or more sensors to determine a relationship between the visual motion data and the data from the one or more sensors.