Hassan Nusi, Muhamad Irfan (2022) Optical sensor based surface plasma resonance (SPR) with IoT for solution concentrations detection. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)
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Abstract
The present work describes a compact and cost-effective optical sensor based on surface plasmon resonance (SPR) for sensing various concentrations of saline solution. This project utilises a red LED as the light source, gold-coated glass substrates as SPR chips, a Nodemcu to power the LED and an op-amp to amplify and display the output voltage, as well as six different concentrations of saline solution. This methodology is divided into two distinct phases: Final Year Project 1 and Final Year Project 2. The initial phase involved testing the designed light source and photodetector circuitry using the SPR chip. It was used to verify that the photodetector could detect the red LED and to record the output voltages. After that, the designed circuit was integrated with the IoT platform. The second phase involved the analysis of saline solutions.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Optical sensor, Surface plasmon resonance (SPR), Saline solution, Nodemcu, Photodetector |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Library > Final Year Project > FKEKK |
| Depositing User: | Norfaradilla Idayu Ab. Ghafar |
| Date Deposited: | 03 Apr 2025 08:34 |
| Last Modified: | 03 Apr 2025 08:34 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/35328 |
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