sound beam

Abstract: The second harmonic sound beam distribution nonlinearly generated by a conical source has beed derived.

本文推导了锥形声源的非线性二次谐波声场分布。

The resulting ultrasonic sound wave can then be directed out in a tightly controlled beam.

由此超声音波可以用严格控制声音的方向.

Geometric critical angle: refraction angle of axis of refracted sound beam being tangent to the internal wall at detection of cylindrical work pieces.

几何临界角：被反射的声音柱的轴心的反射角，这反射角和被探测的圆柱形加工件的内壁相切。

Bell's photo phone was based on transmitting sound beam of light.

贝尔的光影电话是以光波来传递声音.

A resolution for sonar beam simulation was arose in 3D space built with OpenGL, given calculation models for both the target range and level of sound reflection, and how to promote the reality of the simulation image.

在OpenGL实现的三维场景中，建立三维空间中声纳波束仿真方案，给出了探测距离和回波强度两个关键问题的仿真算法，讨论了提高显示真实度的方法。