Free-field technique for measuring ultrasonic dispersion and absorption in gases

Free-field technique for measuring ultrasonic dispersion and absorption in gases

Ultrasonic - velocity m e a s u r e m e n t s and B / A for 1-proponol at pressures to 10, 000 kg/cm 2 Hagelberg, P. M. Journal of the Acoustical Soci...

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Ultrasonic - velocity m e a s u r e m e n t s and B / A for 1-proponol at pressures to 10, 000 kg/cm 2 Hagelberg, P. M. Journal of the Acoustical Society of America Vol 47, No I (part 2) (January 1970) pp 158162 (2220) URrasonic attenuation in alumininm Hepfer, K. C. and Rayne, J. A. Physics Letters Vol 30A, No 5 (3 November 1969) pp 281-282 (2221) Hypersonic velocity and absorption in aqueous electrolytic solutions Montrose, C. J., and Fritsch, K. Journal of the Acoustical Society of America Vol 47, No 3 (part 2) (March 1970) pp786-79 (2222) W a v e s in isotropic elastic materials of the Hadamard, Green o r Harmonic type Ogden, R. W. Journal of the Mechanics and Physics of Solids. Vol 18, No 2 (April 1970) p149-165 (2223)

Measurements of uRrasonlc velocity and density and their relation to the molecular structure in i s o m e r s of saturated hydrocarbons Schaafs, W. and Shenoda, F. B. Acoustics Vol 21, No 6, (1969) p 366 (2224) Sound velocity and compressibility for lunar rocks 17 and 46 and for glass spheres from the lunar soil Schreiber, E., Anderson, O. L., Soga, N. Warren, N., and Scholz, C. Science, Vol 167, No 3918, (30 January 70) p732 (2225) Dependence of velocity of sound in piezoelectric simiconductor on c a r r i e r drift velocity Singh, A. Indian Journal of Pure and Applied Physics Vol 7, No 7, (July 1969) p 456-458 (2226) Ultrasonic absorption and velocity studies of complex ions formation in electrolytic mixtures Venkateshwarh, M., Swarama Sastry, G. Journal of the Physical Society of Japan Vol 27, No 3 (September 1969) p 794 (2227) Determination of the elastic constants of a unidirectional fibre composite using ultrasonic velocity m e a s u r e m e n t s Zimmer, J. E. and Cost, J. R. Journal of the Acoustical Society of America Vol 47, No 3 (part 2) (March 1970) pp793-803 (2228)

GENERATION, DETECTION AND MEASUREMENT

Photoelectric detection of vibrations (using a laser) Decca Limited British Patent 1, 173, 772 (Filed Feb. 3 1967) (2233) P r o p e r t i e s of piezoelectric vibrators in liquids Dzagupov, R. G. and Babayan, V. M. Measurement Techniques No 10 (October 1968) p 1435-1436 (2234) Ceramic transducer for remote control applications Ed. Product Engineering, (19 January 1970) p66 (2235) Electron-beam sensing of surface elastic waves ( c a r r i e r frequency 6MHz) Epstein, M., Toshi, S. G., Senafin, R. J., and Van den Heuvel, A. P. Proc IEEE (February 1970) Vol 58, No 2 p254 (2236) Transducer capable of imaging with improved fidelity the acoustical reflections of subaqueous targets Folds, D. L., Brown, D. H., and Warner, H. L. US Patent 3, 483,504 (9 December 1960) (Filed 23 August 1967) (2237) Piezoelectric element and the transducer carrying it (ceramic) Gulton Industries Inc French Patent 1, 582, 132 (26 September 1969) (Applied for 19 June 1968) (In U S A 27 July 1967) (2238) Piezoelectric effect in CdSe field-effect transistors Jacobs, J. E., and Reimann, K. J. Proc IEEE (February 1970) Vol 58 No 2 p246 (2239) Sound and uRrasound generators Levavasseur, R. US Patent 3, 463, 716 (26 August 1969) (Filed 3 June 1966) (2240) Transducers: on to solid state Neswald, R. G. Vol 51, No 2 (February 1969) p 63 (2241) Frequency - offset method for measuring phase shifts at ultrasonic frequencies McSkimin, H. J. Journal of the Acoustical Society of America Vol 47, No 1 (part 2) January 1970 pp163-167 (2242) Piezoelectric electroacoustic transducer for operation up to 150MHz Nagao, M., and Sakakibara, N. USA Patent 3, 469, 120 (23 September 1969) (Filed 19 December 1966) (2243) Piezoelectric element (by vacuum deposition) Nippon Electric Co. Limited. British Patent 1, 174, 909 (Fries 21 December"

1966) (2244) Maguetostrictive vibrator for high f r e quency machining of hard materials (high sonic and ultrasonic frequencies) Balamuth, L.

US Patent 3, 471,724 (7 October 1969) (Filed 8 April 1965) (2229) Resonance in piezoelectric vibrators (theory describing onset and extent of resonance region) Ballato, A. Proc IEEE (January 1970) Vol 58, No 1 p149 (2230)

Free-field technique for measuring ultrasonic dispersion and absorption in g a s e s Blend, H. Journal of the Acoustical Society of America Vol 47, No 3 (part 2) (March 1970) pp757-762 (2231) Transducer, transducer system, and t r a n s ducer suspension spring Chubbuck, J. G. US Patent 3, 470, 432 (30 September 1969) (Filed 21 July 1967) (2232) 260

U L T R A S O N I C S O c t o b e r 1970

Fluid coupled ultrasonic t r a n m ~ c e r unit for measuring dimensions or detecting defects O'Connor, D. T. US Patent 3, 485, 088 (23 December 1969)

(Filed 27 May 1966) (2245) Driver boundary piezoelectric crystals Pardue, D. R. US Patent 3, 456, 178 (2 September 1969) (Filed 13 September 1966) (2246) On a method of generating ultrasonic circularly polarized waves Plicque, F., Feupier, J., and Zarenbovitch, A. Journal of the Acoustical Society of America Vol 47, No 1 (part 2) (January 1970) pp168172 (2247)

Visualization of surface a c o u s t i c - w a v e s at 100MHz Reeder, T. M., Westbrook, E. M. Winslow, D.K. Electronics Letters, Vol 6 No 2 (22 January 1970) pp30-32 (2248)

Quartz c r y s t a l s for piezoelectric r e s o n a t o r s Royer, J. J. US Patent 3, 483, 402 (9 December 1969) (Filed 26 February 1968) (2249) Piezoelectricity Saunders, G. A. Engineering, Vol 209 No 5418 (6 March 1979) p243 (2250) An improved resonance equation for AT-Cut quartz crystals Sheahan, D. F. Proc IEEE (February 1970) Vol 58, No 2 p260 (2251)

Transducer (piezoelectric,~l~-~l~ed inertial mass at outer end of an elongated crystal) Seney, J. S. US Patent 3, 486, 047 (Filed 20 February 1967) (23 December 1969)(2252)

New hlgh-frequoncyhigh-coupling low-beam steering cut for acoustic surface-waves on LiNbO3 Slobodnik, A. J. and Conway, E. D. Electronics Letters, Vol 6 No 6 (19 March 1970) pp171-173 (2253) Solid acoustic horn with suction means Soloff, R. S. US Patent 3,464, 102 (2 September 1969) (Filed 10 March 1967) (2254) P i e z o e l e c t r i c m i c r o r e s o n a t o r (adapted for m i c r o e l e c t r o n i e application, c o m p r i s i n g a 'beam' which v i b r a t e s in the f r e e - f r e e flexure mode) Standte, J. H. US Patent 3, 488, 530 (6 January 1970) (Filed 22 April 1968) (2255)

Semi-conductor t r a n s d u c e r s Sushita Electrical Co Ltd. British Patent 1, 181, 042 (Filed 19 July 1968) (2256) Mounting piezoelectric r e s o n a t o r s Telefuaken Patentverwertungs. British Patent 1, 175, 244 (Filed 19 June 1967)

(2257) An optical homodyne technique for m e a s u r e me~t of amplitude and phase of subAngstrom ultrasonic vibrations ( m e a s u r e m e n t s of d i s placememts ~ 10 -2 A made) Sizzoric, S., and Gundjian, A. A. (July 1969) Vol 57, No 7, p 1313 (2258)

Electromagnetic generation of ultrasonic shear waves in the non-local limit Thomas, R. L., Turner, G. and Hou, D. Physics Letters, Vol 30A, No 5 (3 November 1969) p 316 - 317 (2259) Ferroelectricity Thorp, J. S. Engineering, Vol 209, No 8115 (13 February 1970) pp171-173 (2260) Thin film piezoelectric transducer Winslow, D. K., Shaw, H. J., and Quate, C. F. US Patent 3, 456, 177 (2 September 1969) (Filed 22 November 1967) (2261) Transducer for fleterminin~ the angle of incidence of sound w a v e s Ziehm, G. H., Triebold, K. F., Drischel, S. F. H. US Patent 3, 496, 527 (17 February 1970) (Filed 21 November 1968) (2262) The electroacoustic horn--s new highintensity sound source Boucher, R. M. G., and Kreuter, J. Journal of the Acoustical Society of America, Vol 46, No 6 (December 1969) pp1406-1409 (2263) In this paper, the authors describe the various experimental phases that preceded the design of a high intensity airborne sound source called the Electroacoustic Horn. This rugged and reliable sound source, which operates within the 10- to 100kHz range, produces high-intensity emissions (166dB at the horn mouth) with an electroacoustic efficiency between 20% and 25%. (2264)