A 1D Doppler global velocimeter (DGV) system was designed and construc
ted. During the evaluation of this system, inaccuracies were observed
which could be attributed to the performance of many individual compon
ents. Items requiring evaluation included the performance of video cam
eras, the transfer lens, the beam splitter, the ALF cell construction,
the absorption line filter (ALF) cell charging, and video recording c
omputer boards. Descriptions of the problems and corrections are detai
led.