Method for measuring viscosity and elasticity of liquid

• Main Author: SHINSUKE MIURA
• Format: Patent
• Language: English
• Published: 04.07.2012
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

Viscosity and elasticity of a liquid are measured by immersing and vibrating a liquid tester in the liquid to be tested and measuring three frequency values that are a resonance frequency value on an amplitude characteristic curve obtained through vibration of the liquid tester in the liquid being tested, a low frequency value lower than the resonance frequency value on the amplitude characteristic curve at a phase angle smaller than a phase angle of 90 degrees at a resonance point on a phase angle characteristic curve obtained through the vibration in the liquid being tested, and a high frequency value higher than the resonance frequency value on the amplitude characteristic curve at a phase angle larger than the phase angle at the resonance point on the phase angle characteristic curve.