|
The du Noüy ring method is one technique by which the surface tension of a liquid can be measured. The method involves slowly lifting a ring, often made of platinum, from the surface of a liquid. The force, , required to raise the ring from the liquid's surface is measured and related to the liquid's surface tension, : where is the radius of the inner ring of the liquid film pulled and is the radius of the outer ring of the liquid film. This technique was proposed by the French physicist Pierre Lecomte du Noüy (1883–1947) in a paper published in 1925. == See also == * Sessile drop technique * Tensiometer (surface tension) * Wilhelmy plate 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Du Noüy ring method」の詳細全文を読む スポンサード リンク
|