抄録
The modern system in the field of photogrammetry has been established about 40 years back, that means, it has already passed since the wide angle camera and its plotting instruments have apperaed. The photogrammetrist can now have the chance to get their necessary inf ormations, and instruments from every places in the world. But we have never seen papers on the examination and survey for endurance and fatigue of operators in operating the plotting instrument. This surveys were conducted by the Pacific Aero Survey Co., Ltd. with the cooperations of research members belonged to Laborphy-siological Laboratory in May and June of 1967. 6 Operators and 6 Assistant of A-7 Aerograph and A-S plotting instrument were seclected as examiners for this experiment surveying every factors effecting to the human body in case of plotting works, and these results were analysed by the experts of physiology. In a series of three separated papers, these analysed procedures and results are discussed. This first paper deseribes only object, examined items, the effect of operators pose during plotting, fatigue examination, and examination for sleeping hour and the time taking the food for operators.
