THE PHOTOELECTRIC ROTATING SLIT ELEVATION AND AZIMUTH SENSOR (PERSEAS)
Herman E. Brown, Mark D. Glasgow · 1963
A description is presented of a laboratory experimental study of two optical sensing devices which appeared to be worthy of feasibility studies for the specific development of scoring de vices. The first device, known as the Photopot System, did not prove feasible as a useful sensor. The second device, known as PERSEAS is considered appropriate for further development. Studies have shown that PERSEAS is highly accurate for the measurement of relative azimuth and elevation angles, and studies of the concept have so far revealed no major limitation which would prevent development of a complete scoring system.