New type of alga photosynthesis activity modulation fluorometer in situ

Jing Liu; Wenqing Liu; Nanjing Zhao; Yujun Zhang; Gaofang Yin; Pangda Dai; Mingjun Ma; Chunlong Wang; Wei Zhang; Jingbo Duan; Li Fang

doi:10.1117/12.978762

15 October 2012 New type of alga photosynthesis activity modulation fluorometer in situ

Jing Liu, Wenqing Liu, Nanjing Zhao, Yujun Zhang, Gaofang Yin, Pangda Dai, Mingjun Ma, Chunlong Wang, Wei Zhang, Jingbo Duan, Li Fang

Author Affiliations +

Proceedings Volume 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 84171I (2012) https://doi.org/10.1117/12.978762
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

A developed in situ measuring system uses light emitted diodes (LED) and laser diodes(LD) as light sources is employed for the recording of algae chlorophyll fluorescence induction kinetics (Kautsky-effect). Photosynthesis activity as an important parameter is obtained in the system which measures the chlorophyll fluorescence yield. Minimal fluorescence is excited by the brief but really weak light pulses from LED as measure light while photosynthesis is happened, variable fluorescence which means there is energy conversion through photosynthesis is also excited by a LED but the beam is more stronger, LD induced saturation fluorescence stands for maximum fluorescence. The system could works for alga chlorophyll photosynthesis activity continuous measure in situ through efficiently mechanical and optical design.

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Jing Liu, Wenqing Liu, Nanjing Zhao, Yujun Zhang, Gaofang Yin, Pangda Dai, Mingjun Ma, Chunlong Wang, Wei Zhang, Jingbo Duan, and Li Fang "New type of alga photosynthesis activity modulation fluorometer in situ", Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 84171I (15 October 2012); https://doi.org/10.1117/12.978762

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