Solid Angle in aircraft design is a geometric concept that measures the extent of a three-dimensional region (a cone) that a given surface or object subtends at a point in space. It is used in various engineering and scientific applications, including optics and antenna design. The formula for solid angle and its SI unit are as follows:
Solid Angle Formula: The formula for calculating solid angle (Ω) in steradians (sr) is defined as:
- Ω: Solid Angle, measured in steradians (sr).
- A: Area on the surface of the sphere that the solid angle subtends, measured in square meters (m²).
- r: Radius of the sphere, measured in meters (m).