1 November 1996 Divergent-ray projection method for measuring the flapping angle, lag angle, and torsional angle of a bumblebee wing
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Optical Engineering, 35(11), (1996). doi:10.1117/1.601053
Abstract
A divergent-ray projection (DRP) method was developed for measuring the flapping angle, lag angle, and torsional angle of a bumblebee wing during beating motion. This new method can measure the spatial coordinates of an insect wing by digitizing the images that are projected by two divergent laser rays from different directions. The advantage of the DRP method is its ability to measure those three angles simultaneously using only one high-speed camera. The resolution of the DRP method can be changed easily by adjusting system parameters to meet the needs of different types of objects. The measurement results for these angles of a bumblebee wing prove the effectiveness of the DRP method in studying the flight performance of insects.
LiJiang Zeng, Hirokazu Matsumoto, Keiji Kawachi, "Divergent-ray projection method for measuring the flapping angle, lag angle, and torsional angle of a bumblebee wing," Optical Engineering 35(11), (1 November 1996). http://dx.doi.org/10.1117/1.601053
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KEYWORDS
Motion measurement

Calibration

High speed cameras

Lenses

Imaging systems

Optical engineering

Fringe analysis

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