Abstract
Flexible platinum temperature sensor embedded in polyimide (PI) films for curved surface temperature monitoring applications: skin temperature of human body
Highlights
IntroductionSeveral research groups studied various types of flexible sensors for temperature sensing using Pt thin films[3,4,5] and polymer films[6,7,8,9] for wearable applications
ISSN 0914-4935 © MYU K.K.Sensors and Materials, Vol 29, No 9 (2017)the position on the human body and are lower than the general core body temperature of 36.5 °C,(1) because of balance between heat production and heat loss.(2)Recently, several research groups studied various types of flexible sensors for temperature sensing using Pt thin films[3,4,5] and polymer films[6,7,8,9] for wearable applications
We investigated the effects of the thickness and length of Pt thin films deposited on polyimide (PI) film with a thickness of 38 μm on the temperature coefficient of resistance (TCR) properties and sensitivities of flexible temperature sensors applied to skin temperature monitoring of the human body
Summary
Several research groups studied various types of flexible sensors for temperature sensing using Pt thin films[3,4,5] and polymer films[6,7,8,9] for wearable applications. The temperature coefficient of resistances (TCRs) of polymer films are much higher than those of Pt thin films even though polymer-filmbased temperature sensors show hysteresis behavior with increasing and decreasing temperature and relatively large deviations among polymer-based temperature sensors Both Ptthin-film-based temperature sensors and polymer-film-based temperature sensors can be used in research to optimize and enhance the properties and create flexible and wearable applications. Temperature sensors using metal alloy[10,11] or ceramic[12,13,14] were developed to obtain high TCR.
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