Multiline flow rate measurement using ultrasonic Doppler method
نویسندگان
چکیده
منابع مشابه
Measurement of Reynolds Stress in Bubbly Flow Using Ultrasonic Doppler Method
Microscopic structure in bubbly flows is a topic of interest in the study of fluid flows. In the present paper, the Ultrasonic Doppler Method was applied to the measurement of bubbly flows from which Reynolds stress profiles were obtained. Experiments were carried out for an air-water dispersed bubbly flow in a 20mm x 100 mm vertical rectangular channel having a void fraction smaller than 3%. T...
متن کاملDesign and construction of ultrasonic Doppler transducers for blood flow measurement using Finite Element Analysis
This paper describes the design and construction of two ultrasonic Doppler transducers using Finite Element Analysis for blood flow measurement. These transducers were constructed using as sensing element, commercial 8 MHz PIC255 piezoceramic discs, EPO-TEK 301 and Rexolite 4422 as backing and matching layer materials respectively. The objective of this work was to design and construct two sing...
متن کاملTissue blood flow measurement by laser Doppler technique
Measurement of blood flow and the effects of different factors on tissue blood flow are important fields of research in physiology and pharmacology. So far, different methods have been innovated, using laser light is the Last one. In this article history, principles and specifications of laser technique along with its advantages and disadvantages ( in comparison with other methods) are revie...
متن کاملBlood Flow Measurement by Laser Doppler Method in Orofacial Region
Laser Doppler is a noninvasive, objective, reproducible and painless method for measuring blood flow in tissue microcirculation. This method is based on the Doppler effect, the change in frequency of light reflecting from blood cells in motion. Light from helium-neon laser through optical fibers and probes is directed to the surface of the tissue in which the flow is measured. Light portion is ...
متن کامل[Renal transplant blood flow measurement using ultrasonic contrast agents].
We studied the renal transplant blood flow using an ultrasonic contrast agent. The contrast medium was injected intravenously and produced blood flow enhancement for at least 60 seconds. Measurements were made from the recorded Doppler spectra. Fourteen renal transplant recipients were investigated by color Doppler echography. Blood flow in the interlobular artery could be analyzed in all patie...
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: The Proceedings of the Fluids engineering conference
سال: 2003
ISSN: 2424-2896
DOI: 10.1299/jsmefed.2003.32