Studies of Infra-thermogram of the Head and Neck

The characteristics of the skin temperature distribution in the head and neck regions under two different air temperatures are researched. According to the degree of the effects of air temperature on them, the. distribution in the head and neek regions can be divided into thermostable and thermolabile areas. By computer processing, the result of digital image displays of temperature show that skin temperature presented in irregular and large lumped or small scattered distribution. The latter condition more often occurred under the air temperature of 20℃. By statistical measures, mean skin temperature under higher air temperature has the following features: the temperature of the frontal part is higher, that of the lateral part is moderate, while that of the back part is lower. When the air temperature lowered down, the differences among these parts do not remain, but the surface temperature of each corresponding part still show the ability in changing skin temperature under the influence of air temperature. The characteristics of skin temperature distribution in the head and neek regions has a practical significance for the design of personal protective equipments such as liquid-cooled cap etc.