Ms. Patrycja Krzeminska Profile

Patrycja Krzeminska

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Proceedings Article | 28 September 2016 Paper

Temporary tattoo for wireless human pulse measurement

Andrzej Pepłowski, Daniel Janczak, Patrycja Krzemińska, Małgorzata Jakubowska

Proceedings Volume 10031, 100312L (2016) https://doi.org/10.1117/12.2248211

KEYWORDS: Electronics, Sensors, Resistance, Signal to noise ratio, Printing, Heart, Blood, Skin, Composites, Electrodes

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Screen-printed sensor for measuring human pulse was designed and first tests using a demonstrator device were conducted. Various materials and sensors’ set ups were compared and the results are presented as the starting point for fabrication of fully functional device. As a screen printing substrate, commercially available temporary tattoo paper was used. Using previously developed nanomaterials-based pastes design of a pressure sensor was printed on the paper and attached to the epidermis. Measurements were aimed at determining sensors impedance constant component and its variability due to pressure wave caused by the human pulse. The constant component was ranging from 2kΩ to 6kΩ and the variations of the impedance were ranging from ±200Ω to ±2.5kΩ, depending on the materials used and the sensor’s configuration. Calculated signal-to-noise ratio was 3.56:1 for the configuration yielding the highest signal level. As the device’s net impedance influences the effectiveness of the wireless communication, the results presented allow for proper design of the sensor for future health-monitoring devices.

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