Measurement and Control of Viscosity or Density
نویسندگان
چکیده
منابع مشابه
Instrument for Simultaneous Measurement of Density and Viscosity
The speed of torsional stress waves transmitted in solid waveguides submerged in a liquid depends, among other things, on the liquid's density and viscosity and the waveguides' cross-sectional geometry. By measuring the speed of torsional stress waves in two waveguides of different cross-sectional geometries, one can obtain both the liquid's density and viscosity. An online, real-time sensor fo...
متن کاملViscosity and density measurement methods for polymer melts
In this article review of density and viscosity measurement methods is presented, including ultrasonic pulse echo methods, which are capable to measure these properties of polymer melts. The methods are presented according to measurement principles, methodology, accuracy and possibility to measure density and viscosity of polymer melts on-line during extrusion process. Such measurements are ver...
متن کاملAnomalous flotation of separator gel: density or viscosity?
Blood collection tubes containing a thixotropic polyester gel are widely used for clinical laboratory testing. The gel, because of its intermediate density (1.04 g/cm 3), physically separates the liquid component of the blood from the cells (densities of 1.03 and 1.09 g/cm 3 respectively) after centrifugation, and forms a barrier between the liquid phase and the cells. However, recent cases hav...
متن کاملViscosity and Density Measurements
2. Working Equations of the Vibrating-Wire Instrument Our implementation [1] of the steady-state vibrating-wire technique is similar to that described by Audonnet and Pádua [2] in which the wire is driven at frequency f by a constant sinusoidal current I, and the emf V(f) generated across the vibrating wire is measured with a two-phase lock-in amplifier. This measured emf generally comprises tw...
متن کاملthe relationship between locus of control, efl reading and writing achievement, and use of language learning strategies
تاثیر منبع کنترل رفتار بر روی موفقیت تحصیلی زبان آموزان انگلیسی بندرت در ایران ارزیابی شده است. هدف این تحقیق ارزیابی رابطه بین منبع کنترل رفتار زبان آموزان انگلیسی و موفقیت آنها در مهارت های خواندن و نوشتن زبان انگلیسی است. محقق همچنین رابطه بین منبع کنترل رفتار و راهبردهای یادگیری زبان انگلیسی را در این تحقیق جستجو می کند. بدین منظور محقق ابتدا نسخه فارسی پرسشنامه منبع کنترل رفتار (duttweiler...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Textile Machinary Society
سال: 1960
ISSN: 1883-8715
DOI: 10.4188/transjtmsj1948.13.41