How a Cup Anemometer Measures Wind Speed - Technical Diagram #10014 (License: Personal Use)

This technical illustration depicts a classic cup anemometer, where four hemispherical cups mounted on horizontal arms rotate when exposed to wind. The rotational motion is transferred through a central shaft to a generator at the base, which converts kinetic energy into an electrical signal proportional to wind speed. Arrows indicate the direction of cup rotation and airflow, clarifying the device’s operational principle.

Used in weather stations, educational science materials, and renewable energy resource assessments; this image supports user intent to understand wind measurement instrumentation or explain anemometer mechanics in STEM content.