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Ultrasonic inspection apparatus-pulse echo technique
NON-DESTRUCTIVE TESTING
Ultrasonic probe s (2 transducer heads) Associated Electrical Industries Limited (H3-5) British Patent 1,179,188 (Filed 29 February 1968) (2265) Ultrasonic tests expose hidden s t r e s s . Detection of defects leading to fatigue cracking and residual s t r e s s developed for NASA Benson, R. W. Steel (The Metalworking Management Weekly) (July 1 1968) Vol 163, No 1, p 46 (2266) Ultrasonic inspection devices (compensation for varying alternation with temperature) Branson Instruments Inc British Patent 1,176,858 (Filed 20 December 1967) (2267) Solid impurities (detection by ultrasonic pulses of solid imporities in liquid metal) British Atuminium Co Limited German Patent OLS 1,473,707 (1969) (Files 31 December 1965) (2268) Ultrasonic inspection a p p a r a t u s - p u l s e echo technique Brech, K. H. US Patent 3,485, 087 (23 December 1969) (Filed 27 January 1986) (2269) Ultrasonic inspection devices (wall flows--1 transducer) Commissariat A l'Energie Atomique British Patent 1,181,608 (Filed 10 October 1968) (2270) Ultrasonic inspection devices (Pulse echo--2 transducer head) C oncast, A. G. British Patent 1,179, 167 (Filed 12 December 1967) (2271) Ultrasonic nondestructive tester including means for separating electrical noise from the electrical signals Cowan, de G., Munger, D. W. US Patent 3,482,434 (9 December 1969) (Filed 23 February 1966) (2272) Branson Ultrasonic thickness testing equipment (Brief equipment note) Editor ial Machinery & Production Engineering, Vol 116, No 2989 (25 February 1970) p 287 (2273) Delayed ultrasonic pulse-echo thickness gauge (system developed at Harwell) Editorial Instrument Practice, Vol 24, No 1 (Jan 1970) p 58 (2274) Ultrasonic non contact thickness gauge Editorial Instrumentation Technology Vol 17, No 1, (January 1970) p 118 (2275) Ultrasonic test set listens for fluid leaks Ed. Product Engineering (November 3 1969) Vol 40, No 22 p59 (2276) Ultrasonic holography finds hidden flaws inside products Ed. Product Engineering (17 November 1969) Vol 40, No 23 p78 (2277) A guide to the selection of no~destructive testing methods of weld inspectiun (this ineludes a section on ultrasonic inspectiun) Goldfinch, T. E. Vol 6, No 6 (June 1969) p 9 {2278) Ultrasonic ear pinpoints air leaks in overhead telephone cables H a r r i s , S. Product Engineering (July 28 1969) Vol 40, No 15, p 70 (2279)
Acoustical inspection device (using s m m d poise) Heath, C. A. British Patent I, 175, 719 (Filed 18 September 1967) (2280) Non-destructive surface s t r e s s measurements. Ultrasonic stress measurements for cast-wheel hub-cracks. Hiersch, F.A. Test Engineering Vol 22, No 2 (August 1969) p 15 (2281) Ultrasonic (thickness) measurement International Business Machines Corp British Patent 1,181,047 (Filed 16 October 1968) (2282) Application of Network Theory and the principle of Duality to T r a n s d u c e r s Korn, J. and Evans, F. J. Instrument Practice Vol. 24 No. 2 (Feb. 1970) pp 99-106 (2283) Ultrasonic inspection devices LKB Medical A B British Patent 1,173,398 (Filed 22 March 1968) (2284) Emitter-receiver for testing materials with uitrasmmd. Nederlandsc Organisatie Voor ToegepistNaturwetenschapplijk Onderzvek Tern Behoeve Van Nyverheid Handel En Verker. French Patent 2,001,213 (1969) (Applied for 31 January 1969) (In Holland 2 February 1968) (2285) An ultrasonic pulse flowmeter and its accuracy 2 - M z . Suitable for measuring large flaw volumes in pipes with diameters exceeding 500ram Obraz, J. ENTL Technical Digest (October 1968) Vol 10 No 10, p 632 (2286) Ultrasonic inspection, cathode ray tube operating circuits Picker Electronics Inc. (H3-5) British Patent 1,173,481 (Filed 14 March 1967) (2287) Method of detecting the presence of faults or flows in tubes using pulsed ultrasound T. I. {Group Services) Ltd. French Patent 2,001,252 (1969) (Applied for 3 February 1969) (in UK 2 February 1968) (2288) Object inspecting method by acoustic setmd Umigami Denki KK. Japanese JPC 30324/69 (1969) (Applied for 18 December 1964) (2269) Quality control of boiler tubes with on line ultrasonics Editorial Electrical Review, Vol 185, No 18, (31 October 1969) p652 A quality control system developed by Stewart & Lloyds for testing electric resistance welded boiler tube. The ultrasound is focused on to the welded area of the tube as it leaves the weld head and coupled to the tube via a water jet. Any discontinuity produces a signal which is amplified to operate a warning light and activates a point gun to mark the defective area. (2290) Ultrasonic detection and measurement of fatigue cracks in notched specimens Klima, S. J. and Freche, J. C. Experimental Mechanics, Vol 9, No 5 (May 1969) p193-203 The paper describes an ultrasonic technique which allows observation of the growth and formation of fatigue cracks in circumferentially notched cylindrical specimens and used in r e s e a r c h tests. The design and operation of each element in the crack-detection system is considered in detail. The ultrasonic transducer is clamped to one end of a specimen, is installed in a fatigue machine, using subriplate as a coupling medium. The transducer frequency chosen was 7MHz, and
microsecond pulses were emitted at a repetition rate of 500/second using a commercial pulsed flaw detector. Results were checked by examination of the specimens exposed cross-section micr0scopically and are presented graphically and photograpically. (2291) Ultrasenic thickness gauge Meier, J. H. Experimental Mechanics,Vol 9, No 5 (May 1969) p215-220 The paper describes an apparatus to approximately determine the thickness of a moving web that passes between two parallel guides. The design considerations and problems are explained in some detail. Particularly that of a subtraction circuit to eliminate unwanted acoustical reflections and a compensator for the changes in acoustic velocity with temperature. The final system consisted of 39.5kHz transducers propagating over an air gap to the web with a dummydetection channel containing the receiving and sending transducers reversed. Graphs of results obtained are presented. (2292)
PRINCIPLES A N D A P P L I C A T I O N S EFFECTS
OF
Quartz sharpens observation and measurement Beatson, G. amd Cooper, B. The Engineer, Vol 230 No 5962, (30 April 1970) (2293) Ultrasonic dispersive delay line Bongianni, W. L. US Patent 3,488, 607 (6 January 1970) (Filed 4 May 1967) (2294) Ultrasonic transducer (rodent repelling) Electromechanical Design Limited. British Patent 1,175,947 (Filed 21 August 1968) (2295) Experimental model studies of scattering of underwater sound (up to 120kHz) by the sea surface caused by waves and air bubble s c r e e n s in the upper l a y e r s Buddruss, C. P. Acoustica, Vol 22, No 1, p 1 (1969/70) (2296) New equivalent circuit approach to acoustoelectric amplification Fishler, C. and Yando, S. Electronics Letters, Vol 5 No 20, (2 October 1969) p 476 (2297) Means of applying a sonic or ultrasonic t r a n s ducer system to a suriace to prevent deposition of materials thereon Goodman, J. E. and Grange, A. USA Patent 3,468, 517 (23 September 1969) (Filed I0 October 1967) (2298) Sonar system Haney, T. I., and Warner, H. L. US Patent 3,469, 230 (23 September 1969) (Filed 8 February 1968) (2299) Visualization of aconstic b e a m s using liquid crystals (at microwave frequencies) Havlice, J. F. Electronics Letters, Vol 5, No 20 (2 October 1969) p 477 (2300) Acoustics and optics Kock, W. E. Applied Optics Vol 8 No 8, (August 1969) p 1525-1531 (2301) Acoustical holograms using phase information only Larmore, L., El-Sum, H. M. A. and Metherell. A.F. Applied Optics Vol 8, No 8. (August 1969) p 1583-1542 (2302) Noisy fish to map the deeps (using 35kHz sonar Livesey, R. Engineering, Vol 208 No 5405, (28 November 1969) (2303) ULTRASONICS October 1970
261
Ultrasonic probe s (2 transducer heads) Associated Electrical Industries Limited (H3-5) British Patent 1,179,188 (Filed 29 February 1968) (2265) Ultrasonic tests expose hidden s t r e s s . Detection of defects leading to fatigue cracking and residual s t r e s s developed for NASA Benson, R. W. Steel (The Metalworking Management Weekly) (July 1 1968) Vol 163, No 1, p 46 (2266) Ultrasonic inspection devices (compensation for varying alternation with temperature) Branson Instruments Inc British Patent 1,176,858 (Filed 20 December 1967) (2267) Solid impurities (detection by ultrasonic pulses of solid imporities in liquid metal) British Atuminium Co Limited German Patent OLS 1,473,707 (1969) (Files 31 December 1965) (2268) Ultrasonic inspection a p p a r a t u s - p u l s e echo technique Brech, K. H. US Patent 3,485, 087 (23 December 1969) (Filed 27 January 1986) (2269) Ultrasonic inspection devices (wall flows--1 transducer) Commissariat A l'Energie Atomique British Patent 1,181,608 (Filed 10 October 1968) (2270) Ultrasonic inspection devices (Pulse echo--2 transducer head) C oncast, A. G. British Patent 1,179, 167 (Filed 12 December 1967) (2271) Ultrasonic nondestructive tester including means for separating electrical noise from the electrical signals Cowan, de G., Munger, D. W. US Patent 3,482,434 (9 December 1969) (Filed 23 February 1966) (2272) Branson Ultrasonic thickness testing equipment (Brief equipment note) Editor ial Machinery & Production Engineering, Vol 116, No 2989 (25 February 1970) p 287 (2273) Delayed ultrasonic pulse-echo thickness gauge (system developed at Harwell) Editorial Instrument Practice, Vol 24, No 1 (Jan 1970) p 58 (2274) Ultrasonic non contact thickness gauge Editorial Instrumentation Technology Vol 17, No 1, (January 1970) p 118 (2275) Ultrasonic test set listens for fluid leaks Ed. Product Engineering (November 3 1969) Vol 40, No 22 p59 (2276) Ultrasonic holography finds hidden flaws inside products Ed. Product Engineering (17 November 1969) Vol 40, No 23 p78 (2277) A guide to the selection of no~destructive testing methods of weld inspectiun (this ineludes a section on ultrasonic inspectiun) Goldfinch, T. E. Vol 6, No 6 (June 1969) p 9 {2278) Ultrasonic ear pinpoints air leaks in overhead telephone cables H a r r i s , S. Product Engineering (July 28 1969) Vol 40, No 15, p 70 (2279)
Acoustical inspection device (using s m m d poise) Heath, C. A. British Patent I, 175, 719 (Filed 18 September 1967) (2280) Non-destructive surface s t r e s s measurements. Ultrasonic stress measurements for cast-wheel hub-cracks. Hiersch, F.A. Test Engineering Vol 22, No 2 (August 1969) p 15 (2281) Ultrasonic (thickness) measurement International Business Machines Corp British Patent 1,181,047 (Filed 16 October 1968) (2282) Application of Network Theory and the principle of Duality to T r a n s d u c e r s Korn, J. and Evans, F. J. Instrument Practice Vol. 24 No. 2 (Feb. 1970) pp 99-106 (2283) Ultrasonic inspection devices LKB Medical A B British Patent 1,173,398 (Filed 22 March 1968) (2284) Emitter-receiver for testing materials with uitrasmmd. Nederlandsc Organisatie Voor ToegepistNaturwetenschapplijk Onderzvek Tern Behoeve Van Nyverheid Handel En Verker. French Patent 2,001,213 (1969) (Applied for 31 January 1969) (In Holland 2 February 1968) (2285) An ultrasonic pulse flowmeter and its accuracy 2 - M z . Suitable for measuring large flaw volumes in pipes with diameters exceeding 500ram Obraz, J. ENTL Technical Digest (October 1968) Vol 10 No 10, p 632 (2286) Ultrasonic inspection, cathode ray tube operating circuits Picker Electronics Inc. (H3-5) British Patent 1,173,481 (Filed 14 March 1967) (2287) Method of detecting the presence of faults or flows in tubes using pulsed ultrasound T. I. {Group Services) Ltd. French Patent 2,001,252 (1969) (Applied for 3 February 1969) (in UK 2 February 1968) (2288) Object inspecting method by acoustic setmd Umigami Denki KK. Japanese JPC 30324/69 (1969) (Applied for 18 December 1964) (2269) Quality control of boiler tubes with on line ultrasonics Editorial Electrical Review, Vol 185, No 18, (31 October 1969) p652 A quality control system developed by Stewart & Lloyds for testing electric resistance welded boiler tube. The ultrasound is focused on to the welded area of the tube as it leaves the weld head and coupled to the tube via a water jet. Any discontinuity produces a signal which is amplified to operate a warning light and activates a point gun to mark the defective area. (2290) Ultrasonic detection and measurement of fatigue cracks in notched specimens Klima, S. J. and Freche, J. C. Experimental Mechanics, Vol 9, No 5 (May 1969) p193-203 The paper describes an ultrasonic technique which allows observation of the growth and formation of fatigue cracks in circumferentially notched cylindrical specimens and used in r e s e a r c h tests. The design and operation of each element in the crack-detection system is considered in detail. The ultrasonic transducer is clamped to one end of a specimen, is installed in a fatigue machine, using subriplate as a coupling medium. The transducer frequency chosen was 7MHz, and
microsecond pulses were emitted at a repetition rate of 500/second using a commercial pulsed flaw detector. Results were checked by examination of the specimens exposed cross-section micr0scopically and are presented graphically and photograpically. (2291) Ultrasenic thickness gauge Meier, J. H. Experimental Mechanics,Vol 9, No 5 (May 1969) p215-220 The paper describes an apparatus to approximately determine the thickness of a moving web that passes between two parallel guides. The design considerations and problems are explained in some detail. Particularly that of a subtraction circuit to eliminate unwanted acoustical reflections and a compensator for the changes in acoustic velocity with temperature. The final system consisted of 39.5kHz transducers propagating over an air gap to the web with a dummydetection channel containing the receiving and sending transducers reversed. Graphs of results obtained are presented. (2292)
PRINCIPLES A N D A P P L I C A T I O N S EFFECTS
OF
Quartz sharpens observation and measurement Beatson, G. amd Cooper, B. The Engineer, Vol 230 No 5962, (30 April 1970) (2293) Ultrasonic dispersive delay line Bongianni, W. L. US Patent 3,488, 607 (6 January 1970) (Filed 4 May 1967) (2294) Ultrasonic transducer (rodent repelling) Electromechanical Design Limited. British Patent 1,175,947 (Filed 21 August 1968) (2295) Experimental model studies of scattering of underwater sound (up to 120kHz) by the sea surface caused by waves and air bubble s c r e e n s in the upper l a y e r s Buddruss, C. P. Acoustica, Vol 22, No 1, p 1 (1969/70) (2296) New equivalent circuit approach to acoustoelectric amplification Fishler, C. and Yando, S. Electronics Letters, Vol 5 No 20, (2 October 1969) p 476 (2297) Means of applying a sonic or ultrasonic t r a n s ducer system to a suriace to prevent deposition of materials thereon Goodman, J. E. and Grange, A. USA Patent 3,468, 517 (23 September 1969) (Filed I0 October 1967) (2298) Sonar system Haney, T. I., and Warner, H. L. US Patent 3,469, 230 (23 September 1969) (Filed 8 February 1968) (2299) Visualization of aconstic b e a m s using liquid crystals (at microwave frequencies) Havlice, J. F. Electronics Letters, Vol 5, No 20 (2 October 1969) p 477 (2300) Acoustics and optics Kock, W. E. Applied Optics Vol 8 No 8, (August 1969) p 1525-1531 (2301) Acoustical holograms using phase information only Larmore, L., El-Sum, H. M. A. and Metherell. A.F. Applied Optics Vol 8, No 8. (August 1969) p 1583-1542 (2302) Noisy fish to map the deeps (using 35kHz sonar Livesey, R. Engineering, Vol 208 No 5405, (28 November 1969) (2303) ULTRASONICS October 1970
261