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Monopole radiation in the presence of an absorbing plane
Surface wave amplification L y a m s h e v , L. M. Soviet P h y s i c s Acoustics, Vol 16, No 2 (OctoberD e c e m b e r 1970) pp 270-71
Dynamics of sound waves in dissipative media Maksimov, A. Yu., Maksimov, B. I.,Mikhailov, G. D. Soviet Physics Acoustics, Vol 16, No 2 (OctoberDecember 1970) pp 272-273 Investigation of the t h e r m a l generation of sound in a Rijke tube Marchenko, V. N., Timoshenko, V. I. Soviet P h y s i c s Acoustics, Vol 16, No 2 (OctoberD e c e m b e r 1970) pp 274-275
Pulsed excitation of transducers Nevskii, Yu. E. Soviet Physics Acoustics, Vol 16, No 2 (OctoberDecember 1970) pp 276-277 The onset of sound wave distortion and cavitation in w a t e r and s e a w a t e r Rusby, J. S. M. Journal of Sound and Vibration, Vol 13, No 3 (Novemb e r 1970) pp 257-267
Monopole radiation in the p r e s e n c e of an a b s o r b i n g plane Delany, M. E., Bazley, E. N. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 269-279 Generation of sound by r o t o r - s t a t o r interaction Kaji, S., Okazaki, T. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 281-307 High frequency acoustic e c h o e s received f r o m s i m p l e g e o m e t r i c s h a p e s with p o s s i b l e applications to t a r g e t recognition Dunsiger, A. D. Journal of Sound and Vibration, Vol 13, No 13 (November 1970) pp 323-345 A t h e o r e t i c a l study of n o n - l i n e a r d~mping by H e l m holtz r e s o n a t o r s Zinn, B. T. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 347-356 C o m m e n t s on velocity of sound in fluid m e d i a Mohring, W. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 357-358 C o m m e n t s on s h e a r deformation in the vibrations of
r~gs
Piezoelectric transducer NASA Tech Brief 7 0-10157 (July 1970)
Some c h 2 r a c t e r i s U c s of Rayletgh wave interaction with s u r f a c e flaws Reinhardt, H. W., Dally, J. W. M a t e r i a l s Evaluation, Vol 28, No 10 (October 1970) pp 213-220 Detection of fatigue c r a c k growth by acoustic e m i s s i o n techniques Dunegan, H. L., H a r r i s , D. O., Teleman, A. S. M a t e r i a l s Evaluation, Vol 28, No 10 (October 1970) pp 221-227 Ultrasonic inspection and f a i l - s a f e indication method
a n d ~ Weinbaum, H. US Patent 3,512, 399 (1970) Two t r a n s c e i v i n g t r a n s d u c e r s at different distances f r o m the inspection region a r e e n e r g i s e d s i m u l t a n e ously. Anomalies a r e identified f r o m the displays of their r e c e i v e d signals, including t r a n s m i s s i o n f r o m each other and reflections f r o m the region. Method of coupling ultrasound into hot m e t a l Thalmann, A. US Patent 3, 512, 401 (1970) The ultrasonic t r a n s d u c e r is coupled through a t u r bulent water flow which p e n e t r a t e s the s t e a m b a r r i e r at the hot interface. Ultrasonic b e a m transducer Egli, P. H. US Patent 3,513,439 (1970) The c r o s s - s e c t i o n of the central t r a n s m i t t i n g disc is between 20 and 30 wavelengths, while the receiving element should be a continuous annular c r y s t a l encircling the disc. Both of these p i e z o e l e c t r i c c r y s t a l s a r e in a coupled vibrating a s s e m b l y which produces a small s e a r c h pattern constant for a long distance. Detector configuration f o r ultrasonic leak detector F r a s e r , J. O. US Patent 3, 517, 546 (1970) L e a k s in buried pipelines a r e detected by an ultrasonic s y s t e m moving through the pipe and having two pickup hydrophones, one ahead of the instrument and one behind. Imbalance between their signals is indicated through use of a coincidence or differential circuit. Ultrasonic sensing s y s t e m Lynnworth, L. C. et al US Patent 3, 514,747 (1970)
Rao, S. S., Sundararajan, V. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) p 364
Ultrasonic t r a n s m i t t e r Somer, J. C. US Patent 3,516, 054 (1970)
On the optimum writing speed of a level r e c o r d e r Hay, B., Kemp, M. F., Shapland, D. G. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 365-366
Method of m ~ n g a magnetic t r a n s d u c e r set Austen, H. E. US Patent 3, 516, 152 (1970)
A simple tester provides resonant frequency m e a s a r e meats of f e r r i t e d e v i c e s NASA Tech Brief 70-10033 (July 1970)
124
ULTRASONICS April 1971
Ultrasonic r e l ~ t i o n in m a n g a n e s e sulphate solutions Jackopin, L. G., Yeager, E. Journal of Physical C h e m i s t r y , Vol 74, No 21 (October 1970) pp 3766-3772
Dynamics of sound waves in dissipative media Maksimov, A. Yu., Maksimov, B. I.,Mikhailov, G. D. Soviet Physics Acoustics, Vol 16, No 2 (OctoberDecember 1970) pp 272-273 Investigation of the t h e r m a l generation of sound in a Rijke tube Marchenko, V. N., Timoshenko, V. I. Soviet P h y s i c s Acoustics, Vol 16, No 2 (OctoberD e c e m b e r 1970) pp 274-275
Pulsed excitation of transducers Nevskii, Yu. E. Soviet Physics Acoustics, Vol 16, No 2 (OctoberDecember 1970) pp 276-277 The onset of sound wave distortion and cavitation in w a t e r and s e a w a t e r Rusby, J. S. M. Journal of Sound and Vibration, Vol 13, No 3 (Novemb e r 1970) pp 257-267
Monopole radiation in the p r e s e n c e of an a b s o r b i n g plane Delany, M. E., Bazley, E. N. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 269-279 Generation of sound by r o t o r - s t a t o r interaction Kaji, S., Okazaki, T. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 281-307 High frequency acoustic e c h o e s received f r o m s i m p l e g e o m e t r i c s h a p e s with p o s s i b l e applications to t a r g e t recognition Dunsiger, A. D. Journal of Sound and Vibration, Vol 13, No 13 (November 1970) pp 323-345 A t h e o r e t i c a l study of n o n - l i n e a r d~mping by H e l m holtz r e s o n a t o r s Zinn, B. T. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 347-356 C o m m e n t s on velocity of sound in fluid m e d i a Mohring, W. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 357-358 C o m m e n t s on s h e a r deformation in the vibrations of
r~gs
Piezoelectric transducer NASA Tech Brief 7 0-10157 (July 1970)
Some c h 2 r a c t e r i s U c s of Rayletgh wave interaction with s u r f a c e flaws Reinhardt, H. W., Dally, J. W. M a t e r i a l s Evaluation, Vol 28, No 10 (October 1970) pp 213-220 Detection of fatigue c r a c k growth by acoustic e m i s s i o n techniques Dunegan, H. L., H a r r i s , D. O., Teleman, A. S. M a t e r i a l s Evaluation, Vol 28, No 10 (October 1970) pp 221-227 Ultrasonic inspection and f a i l - s a f e indication method
a n d ~ Weinbaum, H. US Patent 3,512, 399 (1970) Two t r a n s c e i v i n g t r a n s d u c e r s at different distances f r o m the inspection region a r e e n e r g i s e d s i m u l t a n e ously. Anomalies a r e identified f r o m the displays of their r e c e i v e d signals, including t r a n s m i s s i o n f r o m each other and reflections f r o m the region. Method of coupling ultrasound into hot m e t a l Thalmann, A. US Patent 3, 512, 401 (1970) The ultrasonic t r a n s d u c e r is coupled through a t u r bulent water flow which p e n e t r a t e s the s t e a m b a r r i e r at the hot interface. Ultrasonic b e a m transducer Egli, P. H. US Patent 3,513,439 (1970) The c r o s s - s e c t i o n of the central t r a n s m i t t i n g disc is between 20 and 30 wavelengths, while the receiving element should be a continuous annular c r y s t a l encircling the disc. Both of these p i e z o e l e c t r i c c r y s t a l s a r e in a coupled vibrating a s s e m b l y which produces a small s e a r c h pattern constant for a long distance. Detector configuration f o r ultrasonic leak detector F r a s e r , J. O. US Patent 3, 517, 546 (1970) L e a k s in buried pipelines a r e detected by an ultrasonic s y s t e m moving through the pipe and having two pickup hydrophones, one ahead of the instrument and one behind. Imbalance between their signals is indicated through use of a coincidence or differential circuit. Ultrasonic sensing s y s t e m Lynnworth, L. C. et al US Patent 3, 514,747 (1970)
Rao, S. S., Sundararajan, V. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) p 364
Ultrasonic t r a n s m i t t e r Somer, J. C. US Patent 3,516, 054 (1970)
On the optimum writing speed of a level r e c o r d e r Hay, B., Kemp, M. F., Shapland, D. G. Journal of Sound and Vibration, Vol 13, No 3 (November 1970) pp 365-366
Method of m ~ n g a magnetic t r a n s d u c e r set Austen, H. E. US Patent 3, 516, 152 (1970)
A simple tester provides resonant frequency m e a s a r e meats of f e r r i t e d e v i c e s NASA Tech Brief 70-10033 (July 1970)
124
ULTRASONICS April 1971
Ultrasonic r e l ~ t i o n in m a n g a n e s e sulphate solutions Jackopin, L. G., Yeager, E. Journal of Physical C h e m i s t r y , Vol 74, No 21 (October 1970) pp 3766-3772