Spherometers

Spherometers

A spherometer is a scientific instrument used to measure the curvature of a surface. It consists of a central stem with three or four legs extending from it, each ending in a small spherical tip. The instrument is placed on the surface to be measured, and the distance between the tips and the surface is measured using a micrometer. By taking multiple measurements at different points on the surface, the curvature can be determined. Spherometers are commonly used in optics to measure the curvature of lenses and mirrors. They are also used in metallurgy to measure the curvature of metal surfaces, and in geology to measure the curvature of rocks and minerals. Spherometers are particularly useful in industries where precision is important, such as in the manufacturing of lenses for telescopes and microscopes. The design of spherometers has evolved over time, with modern instruments often incorporating digital readouts and other advanced features. However, the basic principle of the instrument remains the same, and it continues to be an important tool in many scientific fields.

instrument, curvature, micrometer, optics, metallurgy

— Matthew Lopez

CITATION : "Matthew Lopez. 'Spherometers.' Design+Encyclopedia. https://design-encyclopedia.com/define/spherometers?E=399334 (Accessed on October 14, 2026)"