Yam-based sensor

Thus, this chapter describes an innovative smart textile a heat fluxmeter with a textile auxiliary wall, also called a textile heat fluxmeter (THF), which can detect, analyze, and monitor the heat and mass transfers with minimum dismrbance due to their porosity. It is a yam-based sensor that can be defined as the yarn itself as a sensing element and thus it is easier to be used by conventional knitting and weaving processes [15]. Moreover, it is desirable to use flexible electronics and this is especially tme when they need to be in contact with the human body, in which case the flexibility and nonirritability requirements are of utmost importance (Fig. 19.2) [16]. 

The insertion of the electroconductor wire as a sensing element (yam-based sensor) into a textile auxiliary wall was carried out during the weaving process. A number of thermocouples (type k constantan (Cn)/copper (Cu)) formed a thermopile, created with a posttreatment (Fig. 19.7(a)). This thermopile is judiciously disposed on both sides of the textile auxiliary wall to measure the temperature gradient (Fig. 19.7(b)). 

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