Ultrasonic absorption in liquids.

by Carl Johan Moen

Written in English
Published: Downloads: 142
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Edition Notes

Thesis (PhD) - University of Toronto, 1949.

The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL20578550M

Absorption and Dispersion of Ultrasonic Waves focuses on the influence of ultrasonics on molecular processes in liquids and gases, including hydrodynamics, energy exchange, and chemical reactions. The book first offers information on the Stokes-Navier equations of hydrodynamics, as well as equations of motion, viscosity, formal introduction of. Get this from a library! Ultrasonic absorption: an introduction to the theory of sound absorption and dispersion in gases, liquids and solids,. [A B Bhatia].   Book Reviews. Ultrasonic Absorption. An Introduction to the Theory of Sound Absorption and Dispersion in Gases, Liquids, and Solids. A. B. Bhatia. Oxford University Press, New York, pp., illus. $ This is a PDF-only : C. J. Montrose. T1 - Ultrasonic absorption and dispersion in biological media. T2 - A postulated model. AU - Sehgal, Chandra M. AU - Greenleaf, James F. PY - / Y1 - / N2 - An integrated approach for the absorption of ultrasound by liquids and tissues is proposed from the solution of a one-dimensional wave equation of by:

Attenuation of ultrasound waves in tissue Attenuation is the term used to account for loss of wave amplitude (or ‘‘signal’’) due to all mechanisms, including absorption, scattering, and mode conversion The model of attenuation is phenomenological, meaning it agrees well in practice but is not easily supported by theoryFile Size: 1MB. vi tute of the Academy of Sciences of the USSR. Thus, the book does not contain material on the nonlinear interaction of nonlinear ab­ sorption of high-intensity acoustic oscillations in solids, etc. Al­ though the main body of the text generally encompasses the results of the author of the given part of the book, the materials of other Soviet and foreign researchers working in the Format: Paperback. Ultrasonic contrapropagation methods have been used to measure the flow of natural gas since the s, flare gases since the s, and smokestack gases in cem (continuous emissions monitoring) since the s. Since the early s, ultrasonic clamp-on flow measurements, previously restricted mainly to liquids, were foundFile Size: 2MB. An ultrasonic atomization device (1) is provided with a liquid suction wick (22) for sucking liquid from a medical liquid container (20), and also with an absorption body (23) for supplying the liquid, which has been sucked by the liquid suction wick (22), to a vibration plate (32). The absorption body (23) is attached to and detached from the ultrasonic atomization device (1) together with Cited by: 4.

Ultrasonic absorption coefficients and sound velocities of aqueous solutions of symmetric tetraalkylammonium bromides have been measured at 25 °C as a function of frequency ν ( kHz ≤ ν ≤ 5 GHz) and molal concentration m of salt (0 ≤ m ≤ 6 mol/kg). The hydrophobic chains of the cations (CnH2n+1)4N+ have been varied from n = 1 to n = 5. The absorption spectra for solutions of. UITRASONIC VELOCITY AD ABSORPTION IN LIQUID HELIUM By John R. Pellam and Abstract Measurements are given on the velocity and attenuation of ultrasonic energy in liquid helium at a frequency of 15 Mc/sec as a function of temperature from eK to K. The velocity at 15 Mc/sec was found to agree with results obtained at Ultrasonic cleaning is a process that uses ultrasound (usually from 20–40 kHz) to agitate a fluid. The ultrasound can be used with just water, but use of a solvent appropriate for the object to be cleaned and the type of soiling present enhances the effect. Ultrasonic absorption measurements were carried out in a nematic liquid crystal, p-(p prime -ethoxyphenylazo) phenylundecylenate (EPAPU) and a polymesomorphic liquid crystal p-n-decyloxybenzoyl-p-cresol (DBC) with nematic and smectic phases, at a frequency of 2 : A. K. George.

Ultrasonic absorption in liquids. by Carl Johan Moen Download PDF EPUB FB2

Ultrasonic Absorption: An Introduction to the Theory of Sound Absorption and Dispersion in Gases, Liquids and Solids (Dover Books on Physics) Paperback – Ma byCited by:   Absorption and Dispersion of Ultrasonic Waves focuses on the influence of ultrasonics on molecular processes in liquids and gases, including hydrodynamics, energy exchange, and chemical reactions.

The book first offers information on the Stokes-Navier equations of hydrodynamics, as well as equations of motion, viscosity, formal introduction of volume viscosity, and Book Edition: 1.

Books. New Titles. All. Bookshop. Pick and Choose. Databases. Literature Updates. ChemSpider. The Merck Index* MarinLit. More. For Members. For Librarians. Subscribe.

RSS Feeds. Ultrasonic absorption in liquids with conjugated bonds. de Groot and John Lamb Abstract. The first page of this article is displayed as the abstract. Cited by: 8. Abstract The absorption of ultrasonic waves is measured for five nonassociated and five associated liquids at different temperatures extending between their freezing and boiling points.

The absorption is measured by an electrodynamic balance specially developed for this purpose and explained in a previous by: 2. Excess absorption in nonassociated liquids has been explained by the same mechanism as is responsible for molecular absorption in gases, namely, slow exchange of energy between internal and external degrees of this paper the rate of energy exchange is calculated for benzene and found to be three times too rapid.

The Lennard‐Jones interaction potential and model of the liquid are Cited by: Ultrasonic absorption in liquids Hall, D. Abstract.

This dissertation is intended as a broad survey of current work on the absorption of ultrasonic waves in liquids. It covers the experimental methods that are used and the results that have been obtained with various liquids, as well as the relevant theories.

Author: D. Hall. Equipment developed by the Massachusetts Institute of Technology Radiation Laboratory has been applied to the measurement of sound velocity and absorption in liquids at 15 mc/sec.

Pulses of one microsecond duration are generated by a transducer, which also picks up the resultant echoes from a plane by: Measurements of the absorption of ultrasonic waves in water and ethyl alcohol were made by the pulse method, and are more accurate than those made by other methods.

The absorption coefficient α in water was found to vary as the square of the frequency ν over a wide range of by:   The optical diffraction set up as originally employed by Debye and Sears and Lucas and Biqdard has been used with various modifications to estimate the intensity of sound fields at two or more points along the axis of an ultrasonic beam travelling in a liquid and thereby to determine the absorption coefficient of the liquid medium.

Almost all these methods involve a two step operation Cited by: 3. In recent years however the determination of sound velocity and of absorption coefficient has furnished a method for studying molecular and structural properties of liquids.

The analysis of the causes of sound dispersion and absorption shows in fact that in many cases the dispersion and a relevant part of the measured absorption coefficient are Cited by: We present results of theoretical description of ultrasonic phenomena in molecular liquids.

In particular, we are interested in the development of microscopical, i.e., statistical-mechanical framework capable to explain the long living puzzle of the excess ultrasonic absorption in liquids.

Typically, ultrasonic wave in a liquid can be generated by applying the periodically alternating external Cited by: 6. Ultrasonic Methods of Non-Destructive Testing covers the basic principles and practices of ultrasonic testing, starting with the basic theory of vibration and propagation, design and properties and probes, and then proceeding to the principles and practice of the various ultrasonic techniques for different types of components and structures, both metallic and non-metallic.5/5(2).

ULTRASONIC PROPAGATION IN LIQUIDS: I. Alieation of ulse Taecbnisu to Velocity and Absorution Measurements at 15 s by J. Pellam and John Galt lquipmaent developed by the M;I Radiation Laboratory has been ap-plied to the measurement of sound velocity and absorption in liquids File Size: KB.

The absorption coefficient of ultrasonic frequencies 50 kHz, kHz, kHz, kHz and 1 MHz were calculated according to ISO [12]. Dependencies of the ultrasonic absorption coefficient versus temperature, humidity and pressure are shown in Fig 1. Fig.1a shows the dependencies of absorption coefficient versus temperature, when theFile Size: 1MB.

adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: 2. Search in this book series.

Absorption and Dispersion of Ultrasonic Waves. Edited by KARL F. HERZFELD, THEODORE A. LITOVITZ. Volume 7, Pages () Download full volume.

Previous volume. Next volume. Actions for selected chapters. Select all /. The book opens with a discussion of the sources of ultrasound.

This is followed by separate chapters on the properties and detection of ultrasonic radiation; measurement of propagation constants, i.e., the velocity and absorption, of ultrasound; ultrasound propagation in gases, liquids, and solids; and ultrasound propagation in aerosols Book Edition: 2.

Abstract I t is well known that measurements of the absorption of ultrasonic waves in liquids 1–3 often do not show good agreement, and that for numerous liquids they indicate absorption Cited by: In particular, we are interested in the development of a microscopical, i.e., statistical-mechanical, framework capable of explaining the long living puzzle of excess ultrasonic absorption in liquids.

By means of ultrasonic light‐diffraction phenomena the velocity and absorption of sound in some forty transparent liquids were measured in the frequency range of 6 to 30 Mc.

Among the list of materials studied are mixtures of liquids in varying proportions, several solutions of solids in liquids, and a nonliquid jell. A novel‐construction glass‐to‐metal‐to‐quartz cell made possible Cited by: The book opens with a discussion of the sources of ultrasound.

This is followed by separate chapters on the properties and detection of ultrasonic radiation; measurement of propagation constants, i.e., the velocity and absorption, of ultrasound; ultrasound propagation in gases, liquids, and solids; and ultrasound propagation in aerosols, suspensions, and emulsions.

Buy Ultrasonic Absorption: An Introduction to the Theory of Sound Absorption and Dispersion in Gases, Liquids and Solids (Dover Books on Physics) New edition by A.B.

Bhatia (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders. Try the new Google Books. Check out the new look and enjoy easier access to your favorite features.

Experimental Methods to Determine Dispersion and Absorption of Ultrasonic Waves in Liquids 76 Methods for Low Frequencies. The Ultrasonic Interferometer.

Absorption and dispersion of ultrasonic waves. A complete review of the literature data on the speed of sound and ultrasound absorption in pure ionic liquids (ILs) is presented.

Apart of the analysis of data published to date, the significance. A complete review of the literature data on the speed of sound and ultrasound absorption in pure ionic liquids (ILs) is presented.

Apart of the analysis of data published to date, the significance of the speed of sound in ILs is regarded. An analysis of experimental methods described in the literature to determine the speed of sound in ILs as a function of temperature and pressure is reported Cited by: Ultrasonic Absorption: An Introduction to the Theory of Sound Absorption and Dispersion in Gases, Liquids and Solids.

This systematic, clearly written text offers an excellent introduction to the fundamentals of physical acoustics, i.e., the theory of absorption and dispersion of ultrasonic waves in gases, liquids, and solids. A method is described that allows the ultrasonic absorption coefficient alpha of liquids to be precisely measured between about 1 and MHz.

The automatic measuring procedure can be performed easily and comparatively fast. Absorption and Dispersion of Ultrasonic Waves | Karl F. Herzfeld,Theodore A. Litovitz,H. Massey, et er|Elsevier Science||Academic PressAdult. Abstract We present results of the theoretical description of ultrasonic phenomena in molecular liquids.

In particular, we are interested in the development of a microscopical, i.e., statistical-mechanical, framework capable of explaining the long living puzzle of excess ultrasonic absorption in liquids.

This book provides complete coverage of the main issues relevant to the design, analysis, and interpretation of ultrasonic experiments. Topics including elasticity, acoustic waves in solids, ultrasonic loss, and the relation of elastic constants to thermodynamic potentials are covered in by: 1.

About this book The chapters in this volume explore ultrasound-assisted regeneration of silica gel, ultrasound-assisted regeneration for a new honeycomb desiccant material, ultrasound-atomizing regeneration for liquid desiccants, ultrasonic transducers, and much more.Free 2-day shipping.

Buy Ultrasonic Absorption: An Introduction to the Theory of Sound Absorption and Dispersion in Gases, Liquids and Solids at nd: A B Bhatia.Books. New Titles. All. Bookshop. Pick and Choose.

Databases. Literature Updates. ChemSpider. Ultrasonic absorption and relaxation in some cyclohexane derivatives in the liquid state.