Abstract
Technology of creating electrical and electronic systems on flexible substrates, with special emphasis on textile substrates, is one of the most important areas in the field of developing textronics, which is applicable in protective clothes. Resistance and ampacity are the key parameters of electrically conductive thin layers formed on such substrates. Authors of this paper present the results of research related to creation of thin-layered, electrically conductive structures on substrates using a vacuum technology of layer application and assess the scope of their usefulness. Measurement of averaged surface temperature and thermal energy emitted at the surface of the structure will be the subject to metrological evaluation. The authors present developed method with Peltier cells used for measuring the average temperature and emitted heat to evaluate these parameters. The described method allows measurement of average values by matching the dimensions of the cell to the surface. The proposed method avoids possible temperature gradient around the point of measure which occurs in contact methods. The test results also pertain to the determination of the resistance of the test surfaces using a balance of generated thermal power which allows evaluation of the process of creating layers.
Highlights
Textronics is a field of knowledge, which was established on the basis of such scientific areas as electronics, textiles and information technology, with the use of knowledge in the area of automation and metrology
Thin electroconductive layers formed on flexible substrates may be connected to cloths and used as an integral part of textronic systems used among others in medicine for measurement and monitoring body parameters [3,4,5,6,7,8]
– the temperature difference between the Ag layer on the composite substrate and the environment; Px – input power from the power source, which is connected to the layer; Rth – thermal resistance of the Ag layer created on the composite substrate can be calculated according to formula (2)
Summary
Textronics is a field of knowledge, which was established on the basis of such scientific areas as electronics, textiles and information technology, with the use of knowledge in the area of automation and metrology. Thin electroconductive layers formed on flexible substrates may be connected to cloths and used as an integral part of textronic systems used among others in medicine for measurement and monitoring body parameters [3,4,5,6,7,8]. It is important when textronic structures are a component of sensors monitoring the working conditions for example humidity or gas sensors [9,10]. Processes occurring at time of the textronic structure destruction may be a direct or indirect threat to life and health by changing the operating parameters of the electrical circuit [11]
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