| Proj No. | A2172-251 |
| Title | Signal processing circuits for measuring UV absorption and/or fluorescence for water quality monitoring |
| Summary | The project will design and implement the signal processing platform for a simple minisystem with which fluorescence and, if possible, UV absorption as well, could be measured in small volume samples. This is to assess pollution or quality of water at its various stages in the purification process, but the method can be used for a large range of biosamples. The system will comprise a reflective cavity in which a capillary tube will be placed, one or more light sources (LEDs), and several photodetectors, e.g. photodiodes and photomultiplier. The signal outputs from these detectors will thus have to be amplified and processed. Although not mandatory, it is better if the student is familiar with some signal processing circuits (e.g. transimpedance amplifier and op-amp based analog circuits, ADCs, filters, etc.), methods like the lock-in amplifier for optical signals, and microcontrollers (chip or boards such as Raspberry or Arduino) and/or learn new ones (lock-in amplifier). For this purpose, the student will: 1) Read some literature to understand theoretical principles and previous similar realizations. 2) Design the architecture of the final structure. 3) Assemble the device(s) using off-shelf components and circuits, make up the testing setup and perform some measurements. It is preferrable if the student is willing to start the work earlier (BEFORE the school starts), namely to gradually begin as soon as possible after the end of the exam session. This will enable the student to be aided by, and work in a team with a MSc student and a URECA student. |
| Supervisor | A/P Poenar Daniel Puiu (Loc:S2 > S2 B2A > S2 B2A 27, Ext: +65 67904237) |
| Co-Supervisor | - |
| RI Co-Supervisor | - |
| Lab | Project (Loc: S2-B4a-01/02) |
| Single/Group: | Single |
| Area: | Intelligent Systems and Control Engineering |
| ISP/RI/SMP/SCP?: |