Photosensor tracks transients

Outlines research work on the control of flexible single‐link robot arms in which the link is modelled as a beam and the end‐point position is controlled by measuring that position and using that measurement as a basis for applying a torque to the link joint. A position sensor device [PSD] is used as the measuring device. Describes how the measurement is taken and explains the measurement circuit and how the links are analyzed. Concludes that the simplicity of the general configuration of the photosensor system and the nature of the direct data obtained allows it to be used in a wide range of applications.