Wilhelmy balance

Wil·hel·my bal·ance

a device for measuring surface tension in terms of the pull exerted on a thin plate of platinum or other material suspended vertically through the surface; used in a Langmuir trough to study pulmonary surfactant.

Wilhelmy,

Ludwig F., German scientist, 1812-1864. Wilhelmy balance - a device for measuring surface tension used in a Langmuir trough to study pulmonary surfactant.