Nan WANG, Hong-wen XUAN, De-hua LI, Yu-xin NIE. Measurement of Speed Distribution of Kerosene Flame by Using Photothermal Deflection Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2020, 40(11): 3353
- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 11, 3353 (2020)
Fig. 1. Principle of photothermal deflection spectroscopy
(a): Schematic diagram;(b): Principle of phtothermal deflection spectroscopy
(a): Schematic diagram;(b): Principle of phtothermal deflection spectroscopy
Fig. 2. Experimental setup for kerosene flame measurement
PD: Photodiode; PSD: Position sensitive detector
PD: Photodiode; PSD: Position sensitive detector
Fig. 3. Probe signals when probe light is overlapped with pump (H 0) or over pump (H 1) light
Fig. 4. Velocity distributions of flame at heights of (a) 5 mm, (b) 8 mm, and (c) 11 mm
Fig. 5. Velocity distributions of flame at vertical planes of (a) -2 mm, (b) 0 mm, and (c) 2 mm from center
Fig. 6. Velocity distributions of flame at height of 4 mm when pump energy is (a) 20 mJ, (b) 40 mJ, and (c) 60 mJ
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