| Jun Gao / Francesco Mattioli Della Rocca |
| Wed 18 Nov 2015, 13:00 - 14:00 |
| Conference Room 1:03/1:04, Scottish Microelectronics Centre |
If you have a question about this talk, please contact: Jonathan Terry (jgt)
Pizza at 12:45 noon, Talk starts at 13:00 pm
First Speaker: Mr Jun Gao (Heriot-Watt PhD student)
Title: Design, manufacture and test of a Magnetic Encoder
Abstract: A magnetic encoder is a device that measures the relative displacement between a fixed scale and a moveable reading head. It is a vital tool for a range of applications requiring feedback information about the speed, direction or distance of pieces in movement, such as those found in assembly lines, operating theatres and laser cutting machines. In this presentation, an eddy current based magnetic encoder and its working principle is described. The encoder structure is optimized using virtual design of experiment and response surface method. Finally the encoder device fabrication using LTCC technology is described and measurement results are shown.
Second Speaker: Mr Francesco Mattioli Della Rocca (IMNS PhD student)
Title: A CMOS Silicon Photomultiplier for Time-Resolved Fluorescence Lifetime Measurement and Real-Time Cell Sorting
Abstract: Accurate and fast measurement of fluorescence lifetime in flow cytometry enables the study of protein-protein interactions by Forster resonance energy transfer, which are otherwise difficult or impossible to analyse. Time-correlated single photon counting has the best signal to noise ratio of any fluorescence lifetime technique but cannot readily be implemented within a cytometer due to the requirement of complex software algorithms, severely restricting the throughput and preventing real-time sorting of cells. This talk will outline the development of a single-chip silicon photomultiplier detector integrating a CMOS single-photon avalanche diode array light detector and time to digital converters. The sensor achieves low-latency measurement and thresholding of fluorescence lifetime.