Silver Conductive Threads Based Textile Impedance Sensor for Moisture Volume Detection

CompSciRN: Internet of Things (Topic) Pub Date : 1900-01-01 DOI:10.2139/ssrn.3943407

Saima Qureshi, Goran M. Stojanović, M. Simić, V. Jeoti, Najeebullah Lashari

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Abstract

Wearable sensors have become part of our daily life for health monitoring. The detection of moisture content is critical for physical and health monitoring applications. In the present research, an embroidered sensor has been fabricated for the detection of moisture content. The sensor is comprised of an interdigitated electrode embroidered on a cotton substrate with silver-tech 150 and HC 12 threads, respectively, which are silver coated continuous filament and 100 % polyamide with silver plated yarn. The moisture sensor's operation is verified by measuring its impedance between (1-10) MHz and the change in moisture level (1-50) µl. At 1MHz, the comparison of the impedance change of dry sensors shows that the impedance of HC 12 is 25.5 percent less than that of the silver-tech 150 sensor. Also, sensitivity for moisture sensing showed that the silver-tech 150 sensor has a sensitivity of 444Ω/µl, while the HC 12 sensor has a sensitivity of 456Ω/µl. The repeatability test shows the stability of the sensor after washing and the sensor has detected artificial sweat and blood serum for future application of theranostic wound dressing.

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基于银导电线的织物湿量检测阻抗传感器

可穿戴传感器已经成为我们日常生活中健康监测的一部分。水分含量的检测对于物理和健康监测应用至关重要。在本研究中，制作了一种用于检测水分含量的绣花传感器。该传感器由绣在棉质衬底上的交叉电极组成，棉质衬底上分别绣有银技术150和HC 12线，这些线分别是镀银连续长丝和镀银纱的100%聚酰胺。通过测量(1-10)MHz之间的阻抗和(1-50)μ l的湿度变化来验证湿度传感器的工作。在1MHz时，对比干式传感器的阻抗变化，HC - 12的阻抗比银技150传感器的阻抗小25.5%。此外，湿度传感的灵敏度表明，silver-tech 150传感器的灵敏度为444Ω/µl，而HC 12传感器的灵敏度为456Ω/µl。可重复性测试表明，该传感器在洗涤后具有稳定性，并可检测出人工汗液和血清，为未来治疗性伤口敷料的应用奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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CompSciRN: Internet of Things (Topic)

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