Measurement of Microclimate within Clothing Using the Combination Technique of Infrared Ray Absorption Method And Holographic Interferometry

ABSTRACT

The wear comfort depends on the condition of micro-space between cloth and skin of human body. Heat and mass transfer occurs through clothing due to heat and sweat evaporation release from human body in this space. This paper applied a new measurement technique that combines infrared ray absorption method and holographic interferometry to this space to obtain the transient temperature and concentration distributions without and within cloth. The porous films with known specification were used for cloth to verify the usefulness of this technique. The measuring results were visualized by superimposing infrared ray image and interferogram to understand easily the passing behaviors of vapor through cloth. The calculated results of temperature and concentration distributions showed some significant differences in the permeation behaviors of vapor due to film. They fundamentally agreed with the property of film. As a result, this measurement technique was proved to be useful for microclimate within and without clothing.

Keywords:

Infrared ray absorption, holographic interferometry, transient temperature and concentration distributions.