NoüyRingTensiometer
The Noüy ring tensiometer is an instrument used to measure the surface tension of a liquid. It operates on the principle of measuring the force required to pull a platinum ring from the surface of the liquid. The ring is typically attached to a sensitive balance or force transducer. As the ring is slowly pulled upwards, it must overcome the cohesive forces of the liquid at the surface. The maximum force measured just before the ring detaches from the liquid surface is directly proportional to the surface tension of the liquid.
The apparatus consists of a measuring head, a sample stage, and a control unit. The sample stage
The Noüy ring method is widely used in various industries, including pharmaceuticals, food and beverage, and