ldegnetie field on acoustic v ~ in a s e m i eondueto~ Sing-h, A. International Journal of Electronics Vol 27, No 5 (1969) pp 495-496 (2158) Electron t e m p e r a t u r e effectu on lowfrequoney ~ l h d d o s s in a n alkali magnetoplasma Sisto, F., Levlne, M. A. and Magistrell/, F. 11 Nuovo Clmento, Vol 61B, No 2 (11 June 1969), pp 439-448 (2159)
T e m p e r a t u r e and frequency ~ e of microwave ehmtlc J o s s e s in # -J~hombohedl:Ll b a r o n for long/tudinal waves along the c - a d s
(0. 5-I. 8GHz at 4 and 300°lQ Young, J. D., Oliver, D. W. and Slack, G. A. Applied P h y s i c s L e t t e r s , Vol 14, No 10 (15 May 1969) pp 301-302 (2171)
PROCESSING AND PRODUCTION
Curremt nstorattoa and oacfllations in p~ezoelectric s e m i c o n d u c t o r s due to the gcoustoelectric effect Skeie, H. IEEE T r a n s a c t i o n s on s o n i c s and Ultrasonics, 1fol SU-16,No 3 (July 1969), pp 136 (2160)
The study of ultrmmelc m a c h i n e tools
F/eld p a t t e r n s of eleetrnanoustic waves excited by l i n e a r a n t e m m s in hot ~ a ~ Talekar, V. L. International Journal of Electronics, Vol 27, No 5 (1969) pp 479-485 (2161)
Method and a p p a r a t u s for the ultrasonic welding of t h e r m o p l a s t i c f i l m s Dijkens, J. L. C. US Patent 3, 459, 610 (5 August 1969) (Filed 3 August 1966) (2173)
T e m p e r a t u r e dependence of the C s s elastic p a r a m e t e r for lusulating g n o in the t e m p e r a t u r e r a n g e 25-I00°K (contlneous wave method at sTs~wJ Tarnow, V. British Journal of Applied Physics, Ser 2, Vol 2 (October 1969), pp 1383 (2162) Theoretical a n a l y s i s of coupled magnetoelantic waves in f e r r o m a g n e t i c s u b s t a n c e s with allowance for l ~ p e r f l n e intoraetlon InvestlKatiem of d i s p e r s i o n and sound abeorption n e a r n . m . r . f r e q u e n c y Tlmofeev, A. I. and Turov, E . A . Soviet Physics--Solld State, Vol 1O, No I i (May 1969) pp 2625-2631 (2163) P r o p e r t i e s of coupled magnetoelasflc w a v e s in n o n c e n h ' o s y m m e l r i c magnetic n m t o r l a l s Tsvirko, Yu. A. Soviet Physics--Solid State, Vol 10, No 12 (June 1969) pp 2801-2807 (2164) C h a n g e s in the s p e c t r u m of magnetoelastic s i p a l s (in y U ~ u m , iron garnets) 4ue to an adiabatic application of a magnetic field p u l s e Uchastkin, V. I., Taratorin, Yu. A., Krasilnikov, V. A. Goncharav, K.V. Soviet Physics--Solid State, Vol 10 No 11 (May 1969) pp 2544-2547 (2165) The Fraunhofer diffraction pattern r e s u l t i n g f r o m Jrl.minaHon of ultrasonic waves In a t r a n s p e r e n t liquid (theoretical and e x p e r i n u m tal study of the modtfleatlon of t h i s p a t t e r n caused by high ultrasonic absorption) Vchida, N. Japanese Journal of Applied Physics, Vol 8, No 7 (July 1969), pp 935 (2166) Damping of bending vibrations in r o d s with f r e e boundaries Veremeenko, S. V. Defectosoopy, No 4 (July-August 1967) p266 (2167) Calculation of the d i s p e r s i o n c u r v e s for a d s y m n ~ e t r l c and torsional vibrations in r o d s with f r e e ends Veremeenko, S. V. Defectoscopy, No 3 (May June 1967) p222
(2168)
Ioa acoustic waves in torbalent p l a n m a Watamabe, S. and Tenaca, H. Journal of the Physical Society of Japan Vol 26, No 5 (May 1969) p 1331 (2169) Fondmmenhtls of wire drnwinS (Thoorettcal and experlmontnl study of the e a e c t u of v~brnflng the dye longitudlaally at 18.'/kHv. when drawing s t e e l wire) Winsper, C. E., and Sansome, D. H. Journal of the Institute of Metals, Vol 97, (September 1969), pp 274 (2170)
(part 1) Kops, L. Microtechulc, Vol 23, ( P a r t 1), No 4 (1969), pp 243-244, (Part 2),No 3, pp 289-290 (2179)
A~ttowaHe 111t~R,BOt~LCcleQnln~ p r o c e s s Furuno Electric Co Ltd, Machinery Lloyd, (July 1969), pp 18 (2174) Ultrasonic welder for thin w i r e s (welding to
transducers) Metzgen, R. W. US Patent 3, 459, 355 (5 August 1969) (Filed 11 October 1967) (2176) P l a s i / c s s ~ t n g a p p a r a t u s using combined heat and ultrasonic energy Tyrrell, F. S. US Patent 3, 454, 450 (8 July 1969) (Filed 3 J a n u a r y 1966) (2176) U l t r a ~ m i c d e v i c e s of the hand-tool type; magnetostrictlve stack and a horn funeUonIng a s an impedance t r a n s f o r m e r Zoltan Haydn US Patent 3, 488, 851 (13 J a n u a r y 1970) (Filed 18 April 1968) (2177) Sonic a p p a r a t u s for irradiation of weld fusion z o n e s Poulton, C. A. and Lovellette, C. W. US Patent 3, 487, 194 (30 December 1969) (Filed 31 May 1966) This apparatus is for the sonic irradiation of weld melt zones. The method basically c o m p r i s e s transmitting, by m e a n s of an air coupling, high frequency sound vibrations into a weld melt zone, in order to control grain c h a r a c t e r i s t i c s and strength of the welded zone. (2178)
NONDESTRUCTIVE
TESTING
Material testing method (ultrasonic testing of elongated objects) Combustion Engineering Inc German Patent 1, 473, 722 (30 April 1969) (Filed 26 November 1965) (2179) ~ s u s e d in c a m p e r and flaw detector Editor Design Electronics Vol 7, No 3 (December 1969) (2180) Some c h a r a c t e r i s t i c s of the operation of the ult~aDmmic t m m o r s i m t - - r e s o m m e e thickness meter) Kallnen, V. A. and Pranitskli, A. A. (Sept-Oct 1967) No 5, p 363 (2181) EwhmH~ the quantity of tulorm~Hon in ultrnsonto inapect/on (information computing) Krug, G. A. (sept-Oct 1967) No 4, p 383 (2182)
Electrical efflclancy of an a c o n s i o - e l e e t r i c o t ~ m a e n r . T b e o r s i l c a l a n a l y s i s of e l e e t r i m l behavtonr of an anonsto-eleefrie o e c i l l a t ~ for frequencies up to 100MHe. Lahini, S. K., Nag, B. R. The Radio and Electronic Engineer Vol 37, No 3 (March 1969) p 143 (2183) Metall--2M devtoe for coatinaons m e a s u r e ment of thickness. ( M e a s u r e m e n t of thickh e s s of sheet m e t a l , ~ m ~ pulse-reflectAon, suitable since only one side m a y be a c c e s sible) Pranitskii, A. A., Kalintn, V. A. Avenbukh, I.I. Defectoscopy, (July-August 1967), No 4,
p 279 (2184) A review of the tuchnlques u s i n g ultraBonic w a v e s for the m e a s u r e m e n t of s t r e s s within materials Ratcliffe, B. J. The British Journal of Non-Destructive Testing, Vol 11, No 3 (September 1969) (2185) Standardization of ultrasonic flaw-defection design ~ a p o v a l o v , P. F. and Minakov, V. I. (Sept-Oct 1967), No 5, p 388 (2186) Method ef detecting flaw in matortal tube by ultrasonic wave (slant angle inspection using acoustic lens) Sumitomo Kinzoku K K Japanese Pa~ent J P C 28945//69 (26 November 1969) (Applied for 29 September 1964) (2187) rotary probe s y s t e m for the u l t r a sonic * n m w e t l ~ of steel tube Lewis, R. and Cornforth, A. R. Nondestructive testing, Vol 3, No 2 (April 1970) pp 128-131 Manual systems for tube inspection are unable to keep pace with high-speed tube manufacturing processes, and only provide an imprecise test. A range of high speed rotating ultrasonic probe systems and static probe assemblies has been developed for automatic quality control and acceptance testing of tubes. These systems afford automatic inspection of tubes in the diameter range 0.5-44in (12.7ram-1. 118m) seamless or welded tubes, at inspection speeds up to 200fl/min (60.96m/rain). The systems incorporate several noval features in the ultrasonic and electronic design. One of these systems is described in detail. (2188) Automatic
m~,nfficance of a detection of defects in rails Johnson, P. C. and Wise, S. Nondestructive Testing, Vol 3, No 2 (April 1970) pp 111-116 The article d e s c r i b e s the principal types of defects which m a y be found in rails, and indicates those which a r e inherent in the m a n u facturing p r o c e s s e s and those which arise a s a r e s u l t of s e r v i c e loads. The principles of r e s o n a n c e and pulse-echo ultrasonic flaw detection as applied to r a i l s a r e given, and the c u r r e n t ultrasonic testing practice a s British Rail i s described. (2189) Inspection of g r e y iron c a s t i n g s by u l t r a sonic attenuation H. J. Meyer Nondestructive testing, VUl 3, No 2 (April 1970) pp 99-104 Ultrasonic pulses of definite frequency and wavelength undergo a varying degree of scatter depending upon the size and quantity of graphite flakes in grey cast iron. The amount of sound energy left after a sound beam has passed a given cross-section provides, therefore, a measure of the structure and content of the graphite and consequently, the physical strength of the crosssection. (2190)
CONDITIONS O F S A L E A N D S U P P L Y : T h i s p e r i o d i c a l i s s o l d s u b j e c t to the f o l l o w i n g c o n d i t i o n s , n a m e l y t h a t i t s h a l l not, w i t h o u t the w r i t t e n c o n s e n t of the p u b l i s h e r s f i r s t g i v e n , b e l e n t , r e - s o l d , h i r e d out o r o t h e r w i s e d i s p o s e d of b y w a y of T r a d e a t a p r i c e in e x c e s s of the r e c o m m e n d e d m a x i m u m p r i c e s h o w n on the c o v e r ; a n d t h a t i t s h a l l n o t b e l e n t , r e - s o l d , h i r e d out o r o t h e r w i s e d i s p o s e d of i n a m u t i l a t e d c o n d i t i o n o r in a n y u n a u t h o r i s e d c o v e r by w a y of T r a d e ; o r a~fixed to o r a s p a r t of a n y publication or advertising, literary or pictorial matter whatsoever.
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