منابع مشابه
Nanomechanical vibrating wire resonator for phonon spectroscopy in liquid helium
We demonstrate how to machine a vibrating wire resonator for ultrasonic excitations in gaseous and liquid helium. This novel resonator is designed as a nanoscopic mechanically flexible bridge machined out of a semiconductor/metal hybrid. Quenching of the mechanical resonance around 100 MHz in gaseous and liquid 4He at 4.2 K is shown. Vibrating wire resonators (VWRs) are standard bolometers for ...
متن کاملMicrofluidic rheometry
The development and growth of microfluidics has stimulated interest in the behaviour of complex liquids in microscale geometries and provided a rich platform for rheometric investigations of non-Newtonian phenomena at small scales. Microfluidic techniques present the rheologist with new opportunities for material property measurement and this review discusses the use of microfluidic devices to ...
متن کاملImpedance Estimation of a Vibrating Wire Viscosity Sensor Using Multi-Harmonic Signals
Abstrac t -This paper presents a method to estimate the impedance response of a vibrating wire viscosity sensor. The method is based on the application of a multi-harmonic signal at the terminals of the sensor. The signal is composed by the harmonics that correspond to the frequencies at which one wants to obtain the impedance of the sensor. The impedance is determined using least-squares (LS) ...
متن کاملVortex emission by a low-frequency vibrating wire in superfluid 3He-B
We report the investigation of vortex emission by a vibrating wire in superfluid 3He-B at a pressure of 28 bar. We used two vibrating wires with 47 Hz and 183 Hz resonance frequencies as a generator and a detector of vortices. The onset velocity of vortex emission for the 183 Hz vibrating wire is higher than a pair-breaking velocity, indicating that pair breaking causes vortex generation. In co...
متن کاملViscosity Electronic Measurement Estimation System based on the Impedance Frequency response of a Vibrating Wire Sensor
Nowadays, viscosity measurements play an important role in several areas, such as Industrial, Scientific and Technological, and have utility in various applications. In the Industrial area, viscosity measurements can be applied in several areas, such as the food, pharmaceutical, automobile, chemical and petroleum industries. Viscosity measurement brings benefits since monitoring it allows cost ...
متن کاملذخیره 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 Non-Newtonian Fluid Mechanics
سال: 2016
ISSN: 0377-0257
DOI: 10.1016/j.jnnfm.2016.06.007