A fiber-based fluorometric system for in situ algal classification
| Autor: | Pengfei Zhang, Zhonghua Cai, Yonghong He, Yilong Zhang, Yi Tao, Le Liu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
In situ
Materials science business.industry Amplifier 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Signal Fluorescence Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Wavelength Optics Excited state 0103 physical sciences Fiber Electrical and Electronic Engineering 0210 nano-technology business Chlorophyll fluorescence |
| Zdroj: | Optics & Laser Technology. 76:121-126 |
| ISSN: | 0030-3992 |
| DOI: | 10.1016/j.optlastec.2015.08.006 |
| Popis: | We develop a fast fiber-based in situ fluorescence system for phytoplankton taxonomy. The fluorescence is excited by high power LEDs with different wavelengths through a customized fiber bundle to the place of interest. Sinusoidal-amplitude-modulation (SAM) techniques are employed. The detection time is shorten to 0.1 s because the fluorescence is excited and demodulated by different wavelengths simultaneously. The fluorescence signal is demodulated by a digital lock-in amplifier. The device is tested in Shenzhen Bay, South China Sea. |
| Databáze: | OpenAIRE |
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