Measurement of decay time based on FFT |
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| Authors: | Weimin Sun Jianzhong Zhang Lei Yu Yang Zhang Yanrong Xiang Libo Yuan Tong Sun K. T. V. Grattan |
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| Affiliation: | a School of Science, Harbin Engineering University, Harbin 150001, PR China;b School of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, PR China;c School of Engineering, City University, London EC1V 0HB, UK |
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| Abstract: | Decay time is an important parameter in fluorescence temperature and pH value measurement. Many approaches are developed based on different principles. The decay acquisition and estimation method is one of them. A novel estimation method is given in this paper, based on the fast Fourier transform (FFT). The decay time can be calculated from the frequent items of the FFT. The advantages of this method include high accuracy, quick processing, independence on base offset etc. A set of experiment results is obtained based on this method. |
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| Keywords: | Author Keywords: Fluorescence temperature sensor Decay time Simulation Fast Fourier transform (FFT) Discrete Fourier transform (DFT) |
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