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Development of stretchable temperature sensor

Development of stretchable temperature sensor / Noor Shafika Mohd Rafee
Teknologi percetakan inkjet menawarkan keupayaan pengeluaran yang besar untuk kedua-dua elektronik dan sensor. Aplikasi baru sebagai elektronik pakai buang kos rendah untuk pemantauan kesihatan berada dalam bidang yang paling menarik dalam kajian [1]. Matlamat utama projek ini adalah untuk mengkaji ketebalan susun atur sensor suhu yang berbeza yang terdedah kepada pelbagai suhu yang berbeza antara 100 oC hingga 170 oC sambil mengekalkan panjang pemantau sensor suhu dan kelakuan sifat elektrik sensor ini. Di samping itu, prosedur fabrikasi juga telah dicadangkan termasuk penyediaan bahan dan juga prosedur ujian. Selain itu, hasil yang diperoleh untuk hubungan antara pelbagai suhu dan ketebalan berbeza susun atur adalah berkadar songsang. Ini disebabkan oleh dakwat yang digunakan untuk sensor suhu iaitu karbon hitam. Karbon hitam dicirikan sebagai elemen semi logam. Ia juga dianggarkan bahawa masa penentuan setiap sensor suhu adalah kira-kira 15 minit hingga 25 minit untuk kembali ke nilai rintangan keadaan biliknya. Pengiraan nilai teori akan berbeza kerana terdapat beberapa element yang tidak diketahui nilainya seperti koefisien suhu telah diabaikan. Resistensi karbon hitam pada suhu bilik juga telah dianggarkan. Keputusan variasi diperolehi disebabkan oleh reka bentuk yang tidak sekata yang dicetak dan pendedahkan sensor suhu kepada suhu tinggi. _______________________________________________________________________________________________________ Inkjet printing technologies offer huge area of production capabilities for both electronics and sensor. New application as low cost disposable electronics for monitoring the health are in the most interesting field on study[1]. The main aim of this project is to study different layout thickness of temperature sensor that been exposed to different temperature range between 100 oC - 170 oC while keep the length of the temperature sensor constant and the behavior of the electrical properties of these sensors. Besides, fabrication procedure also has been proposed including material preparation and also testing procedure. Furthermore, the result obtained for the relationship between various temperature and different thickness of the layout is inversely proportional. This is due to the ink used for the temperature sensor which is carbon black. Carbon black are characterized as semi metal element. It is also estimated that the settling time of each temperature sensor is about 15 minutes to 25 minutes to return to its room condition resistance values. The calculation of the theoretical value will be different because some of the unknown such as the temperature coefficient are been ignored. The resistivity of carbon black at the room temperature are also been estimated. The variation result obtain is due to uneven design printed and the exposing of the temperature sensor to high temperature.
Contributor(s):
Noor Shafika Mohd Rafee - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875008724
Language:
English
Subject Keywords:
printing; technologies; disposable
First presented to the public:
6/1/2019
Original Publication Date:
3/11/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 72
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-03-11 15:39:41.338
Date Last Updated
2020-12-02 15:17:12.167
Submitter:
Mohd Jasnizam Mohd Salleh

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