How an Anemometer Measures Wind Speed - Diagram & Explanation #10008 (License: Personal Use)

This black-and-white technical illustration depicts a traditional cup anemometer, featuring four hemispherical cups mounted on horizontal arms arranged in a cross pattern around a central vertical shaft. As wind blows, the cups catch the airflow, causing the assembly to rotate at a speed proportional to wind velocity-this rotation is measured by a sensor or counter to quantify wind speed. The design is robust, low-maintenance, and widely used in weather stations worldwide.

This image is typically used on educational or meteorological web pages explaining weather instruments, especially in STEM resources, weather station product pages, or science curriculum materials. It serves users seeking to understand how wind speed is measured physically, matching intent for learning, teaching, or selecting instrumentation.