出版社:National Institute of Occupational Safety and Health
摘要:Skin temperature at the third finger tip of left hand on the radial side was observed with a thermister. Vibration was given the left hand of a subject who gripped a handle set on a vibration table of electrodynamic type. The room tem-perature was varied at 22°C and 10°C. Effects of factors concerning the vibrations (magnitude, frequency, exposure time), gripping force and room temperatures on the skin temperature were studied by using the experimental design method. In the first experiment, for impressing large vibration magnitude over 50 g, recovery of the skin temperature after stop of the vibration was slow as compared with the small vibration amplitude. In the second experiment, the recovery of the skin temperature was clearly retarded in the low room temperature (10°C). This tendency especially was promoted on the longer vibration exposure time than the shorter one.