Research on high precision photogrammetric measurement method based on head target plate

In the dynamic impact test, it is necessary to measure the ATD head position and posture data in order to evaluate the performance of civil aircraft seats.When the ATD head moves to the area of maximum displacement in the heading direction, the centroid marker of the ATD head is always blocked by the ATD arm. In order to solve the problem of ATD head position and posture measurement, a rigid lightweight target plate installed on the longitudinal center plane at the top of the ATD head was designed, and a comprehensive position and posture calculation method was proposed, so as to achieve the high precision position and posture measurement requirements of the ATD head.