pressure antinode

physics

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Last updated

July 13, 2026

Quick Summary

In physics, an antinode is a region of maximum amplitude situated between adjacent nodes in a vibrating body. This concept is particularly relevant when discussing standing waves, which are formed when two identical waves move in opposite directions. In air columns, these standing waves consist of equally spaced nodes and antinodes, with the loop length equaling half a wavelength.12

It's important to note that illustrations of standing waves in tubes can represent either pressure or velocity/displacement. When pressure is depicted, a pressure antinode corresponds to a displacement or velocity node, and vice versa.2

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Measuring techniques
…of a tube, while a pressure antinode (corresponding to a displacement or velocity node) occurs at the closed end. Because most microphones respond to changes in pressure, this type of representation may be more useful when discussing experimental observations involving the use of microphones.
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…of a tube, while a pressure antinode (corresponding to a displacement or velocity node) occurs at the closed end. Because most microphones respond to changes in pressure, this type of representation may be more useful when discussing experimental observations involving the use of microphones.
Read More