Complex viscosity and complex modulus measurement device and method

摘要: The viscometer (100) includes a difference amplifier (110) driven by signal generator (111) which supplies control to shaker (120), is sufficiently powerful impose such strains as may be demanded controlling reference voltage with desired form. (120) drives shaft (125), and an upper plate (130) attached distal end of the (125). A lower (140) positioned adjacent, substantially parallel to, (130), thereby creating space that filled fluid sample (150). motion h(t) measured sensor (180). Plate mounted on force measuring means (160) keeps motionless relative frame (165). Force provides output, or force, f(t) indicative (150) exerts (130 140) in response movement (130). This related viscosity equation G*(φ) = h3/3πa4 F(φ)/H(φ), where complex modulus, F(φ) Fourier transform f(t), H(φ) h(t), radius h mean distance between plates 140).