昆虫翅膀的运动参数测量研究

研究可用于精确测量昆虫运动参数的条纹投影法.应用具有高衍射效率的声光调制器(AOD)生成投影条纹,通过调整各衍射光束的角度获得不同角间距的条纹,可用来测量反射比较低的昆虫翅膀.结合AOD和光栅,从两个相互垂直的方向投射条纹,可以在>90°的测量范围内测量蜜蜂的拍打翅膀.结果表明,在蜜蜂的一个拍打周期内,用该方法可以有效地测量其拍打角、滞后角,扭转角和扭转变形,相对测量误差<2%.

Measurement of Parameters from the Beating Wings of a Bumblebee

Studies the scanning projected line method for measuring the flapping angle, lag angle, torsional angle and torsional deformation of a bumblebee wing during its beating motion. Using an acousto optic deflector (AOD) with high diffraction efficiency to generate the projected lines, allows easy adjustment of the interbeam angle, and a wing having low reflectivity can be measured. This can be used to measure the parameters of a beating bumblebee wing. Combining the AOD together with a grating, the lines can be projected from two perpendicular directions, and the beating bumblebee wing measured with a range of more than 90 degrees. The results demonstrate the effectiveness of the method in measuring the flapping angle, lag angle, torsional angle and torsional deformation of a bumblebee wing during its beating motion. A relative accuracy of 2% can be achieved.