| Keywords |
Thermal comfort ; Skin temperature and skin thermometer |
| Abstract |
A skin thermometer is widely used to elucidate the relationship between the physiological response and the surrounding environment. The purpose of this work was to develop a precise skin thermometer with accuracy of ±0.1oC considering to ISO 9886 and ISO 7933. Characteristics of sensors such as RTD pt-100 Ohm, NTC thermistor, Thermocouple and Integrated Silicon Sensor were compared for sensitivity, stability and the availability of an operating amplifier. Finally a 10k-Ohm NTC thermistor was adapted. A ±0.1% resistor was used to evaluate the accuracy of the operating amplifier, and a copper annular with a 50mm-diameter was used to evaluate the characteristics of the thermometer. The accuracy of the thermometer was to be ±0.08oC. The skin thermometer developed in this work was utilized to measure skin temperature for thermo-physiological responses. |