SU740163A3 - Deflector - Google Patents
Deflector Download PDFInfo
- Publication number
- SU740163A3 SU740163A3 SU732532304A SU2532304A SU740163A3 SU 740163 A3 SU740163 A3 SU 740163A3 SU 732532304 A SU732532304 A SU 732532304A SU 2532304 A SU2532304 A SU 2532304A SU 740163 A3 SU740163 A3 SU 740163A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- axis
- deflector
- plane
- angle
- reflector
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/221—Arrangements for directing or focusing the acoustical waves
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/20—Reflecting arrangements
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
t Изобретение относитс к средствам неразрушающего контрол и может быть использовано дл ультразйу вой дефектоскопии цилиндрических из делий. Известен дефлектор, представл ющий собой конус из эластичного мате риала с некоторым отражательным уча ком, снабженный воздействующим на его вераину регул тором конусности и предназначенный дл преобразовани пучка лучей, направл емых парал лельно оси издели , в пучок.лучей с посто нным углом падени t на поверхность издели 11. Недостатком этого дефлектора вл етс невысока производительнос контрол .. Целью изобретени вл етс повышение производительности контрол . Это достигаетс тем, что отражающа поверхность дефлектора образована поверхностью, котора в пол рных координатах (р , Q ) с осью OZ , совпадающей с продольной осью издели , выбрана из соотнсхнени : Z-ctg v --R 5 J R-s4®. где Л и j определены из уравнений: . -:;2- tgj tgbco5p, И co92A Sin-sin где и - радиусиздели f, - УГОЛ между касательными к в}1нтовой линии, образованной на, изделии падени лучей, и .плоскостью, У1ерпендикул рной образукицей издели . Кроме того, с целью повьииенй точности вы влений продольных дефектов , отражающа пЬйерхность дефлектора выбрана прш р 0; f- из соотношени ZiV -RVini tRSini в tfa фиг. 1 показаны геометрические параметры хода лучей, подакшщх по круглой непре{ лвной спирали Н на поверхность круглого пр мого цилиндра С с радиусом Rj на Фиг. 2 - схема спирального дефлектора; на Фиг. 3вариант схемы контрол иэЛели с помощью спирального дефлектора. ,На фиг. 1 показано, что луч РМ, параллельный оси 02 Цилиндра С, падает на поверхность дефлектора(на чертеже не показан) в точку Н, образу угол Л с перпендикул ром Tf к поверхности дефлектора в этой точке . Отраженньй дефлектором луч МА падает на поверхность цилиндра;с в точке А, образу с перпендикул ром N А к плоскости, касательной к цилиндру-С в этой точке угол i паде При этом проекци АЕ луча МА, так же ка1к и проекци перпендикул ра ТГ на любую; Плоскость , перпендикул рну оси PZ , образует с перпёндикул ЦэоМ NA или его проекцией на эту же пло кость угол j . ,, Можно убедитьс , что в случае обеспечени посто нства угла i паде ни лучей, отраженных .дефлектором на пЬвёрхнорть цилиндра С, проекции перпендикул ров 1л к каждой точ ке поверхности дефлектора на плоскость , перпендикул рную-оси 02 , на пример ХСУ, охватывают окружность с радиусом RSinj (на фиг. 1 окружность , проход ща через точку Р). В случае падени лучей под посто нным углем ) на поверхность цилиндра С по спирали Н, проход щей чере.з точку А, касательна к этой спирали в любой точке образует посто нный угол р с плоскостью, перпендикул рной оси OZ , например плос костью ХОУ. Свойства проекций перпендикул ро РГк дефлектору на плоскости ХОУ,. которые охватывают окружность с радиусом Bsinj , обуславливают то, что Сечение поверхности дефлектора этой плоскостью есть эвольвента окружности с радиусом B-glhJ , причем угол j св зан с углами i и ft со отношением; tgi tgi-cosp Сама же поверхность дефлектора, обеспечиваюшего преобразование пучка лучей, направл емых параллельно оси издели и падающих на его поверхность под углом «д , в пучок лучей с посто нным углом падени на поверхность издели по вийтовой линии с углбм в между касательнвиии к Ней и плоскостью, перпендикул рной оси издели , и с шагом SlTR-igp,, описываемс в пол рных координатах (Э,0 ) соотношением: sinj + R sinj в, The invention relates to non-destructive testing and can be used for ultrasonic inspection of cylindrical products. A deflector is known, which is a cone made of an elastic material with a certain reflective band, equipped with a taper regulator acting on its verain and intended to convert a beam of rays directed parallel to the axis of the product into a beam of rays with a constant angle of incidence t product surface 11. The disadvantage of this deflector is the low productivity of the control. The aim of the invention is to increase the productivity of the control. This is achieved by the fact that the reflecting surface of the deflector is formed by a surface that in polar coordinates (p, Q) with the axis OZ, which coincides with the longitudinal axis of the product, is selected from the relation: Z-ctg v --R 5 J R-s4®. where L and j are determined from the equations:. -:; 2- tgj tgbco5p, and co92A Sin-sin where and is the radius of the f, and ANGLE between the tangents to the 1-nth line formed on the product of the incidence of the rays, and the plane that is perpendicular to the specimen. In addition, for the purpose of detecting the accuracy of longitudinal defects, the reflector surface of the deflector was selected as follows; f- from the ZiV -RVini tRSini ratio in tfa of FIG. Figure 1 shows the geometrical parameters of the path of the rays, which follow the circular continuous {H) helix onto the surface of the round straight cylinder C with a radius Rj in FIG. 2 - scheme of the spiral deflector; in FIG. 3 variant of the control circuit of an eLeli with the help of a spiral deflector. , FIG. 1 shows that the PM beam parallel to the axis 02 of Cylinder C falls on the surface of the deflector (not shown) at point H, forming the angle L with the perpendicular Tf to the surface of the deflector at this point. The reflected MA deflector beam falls on the surface of the cylinder; c at point A, forming with the perpendicular N A to the plane tangent to the cylinder C at this point is the angle i pade. The projection AE of the MA beam is also the projection of the perpendicular TG to any; The plane, perpendicular to the PZ axis, forms an angle j with the perpendiculars of CeoM NA or its projection onto the same surface. ,, It is possible to ensure that, if the angle i pade is ensured, no rays reflected by the deflector on the cylinder top C, the projections of the perpendiculars 1l to each point of the surface of the deflector on the plane, perpendicular-axes 02, for example, the CSU, cover a circle with radius RSinj (in Fig. 1, a circle passing through point P). In the case of rays falling under a constant coal) on the surface of cylinder C in a spiral H, passing through point A, tangent to this spiral at any point forms a constant angle p with a plane perpendicular to the axis OZ, for example, HOA. The properties of the projections perpendicular to the RGK deflector on the HOU plane ,. which enclose a circle with radius Bsinj, determine that the section of the surface of the deflector with this plane is the evolvent of a circle with radius B-glhJ, with angle j associated with angles i and ft with ratio; tgi tgi-cosp The very same surface of the deflector, which converts a beam of rays directed parallel to the axis of the product and falling on its surface at an angle d into a beam of rays with a constant angle of incidence on the surface of the product along the Wijt line from the corner to her and with the plane perpendicular to the axis of the product, and with the pitch SlTR-igp ,, described in polar coordinates (E, 0) by the relation: sinj + R sinj in,
где Л и j св заны с i и рwhere L and j are associated with i and p
урЁвнени ми:APPROACHES:
tgi tgi-cosp cos2 A Sm-sinptgi tgi-cosp cos2 A Sm-sinp
На фиг. .2 показан дефлектор уравнению:FIG. .2 shows the deflector equation:
zWp -R Sini R-sinie,zWp -R Sini R-sinie,
определенный на основе пр молинейных образующих дл случа , когда он окружает цилиндр 2с радиусом R, а Э О, Л 45° .determined on the basis of straight line generators for the case when it surrounds the cylinder 2 with radius R, and Э О, Л 45 °.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7346384A FR2256617B1 (en) | 1973-12-26 | 1973-12-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU740163A3 true SU740163A3 (en) | 1980-06-05 |
Family
ID=9129708
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU732532304A SU740163A3 (en) | 1973-12-26 | 1973-12-26 | Deflector |
SU742094237A SU660606A3 (en) | 1973-12-26 | 1974-12-25 | Deflector |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU742094237A SU660606A3 (en) | 1973-12-26 | 1974-12-25 | Deflector |
Country Status (13)
Country | Link |
---|---|
US (1) | US3916675A (en) |
JP (1) | JPS5843693B2 (en) |
BE (1) | BE823664A (en) |
CA (1) | CA1009359A (en) |
DE (1) | DE2461590C2 (en) |
FR (1) | FR2256617B1 (en) |
GB (1) | GB1495536A (en) |
IT (1) | IT1027183B (en) |
LU (1) | LU71543A1 (en) |
NL (1) | NL7416832A (en) |
PL (1) | PL104062B1 (en) |
SE (2) | SE404845B (en) |
SU (2) | SU740163A3 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2337589A1 (en) * | 1976-01-06 | 1977-08-05 | Commissariat Energie Atomique | WAVES EXCITATION DEVICE ESPECIALLY ULTRA-SOUND WAVES INCLUDING A LENS |
FR2359420A1 (en) * | 1976-07-21 | 1978-02-17 | Commissariat Energie Atomique | DEVICE FOR TUBE TESTING BY ULTRASONICS INCLUDING MEANS FOR INTRODUCING AN ACOUSTIC COUPLING LIQUID |
US4195530A (en) * | 1978-08-14 | 1980-04-01 | Republic Steel Corporation | Ultrasonic inspection |
USRE30926F1 (en) * | 1978-08-14 | 1984-09-18 | Ultrasonic inspection | |
DE3003349A1 (en) * | 1980-01-31 | 1981-08-06 | Ruhrchemie Ag, 4200 Oberhausen | METHOD FOR DETECTING MATERIAL ERRORS IN HOLLOW BODIES |
NL8020337A (en) * | 1980-03-03 | 1982-01-04 | Republic Steel Corp | SUPERSONAL INSPECTION. |
JPS6026637U (en) * | 1983-07-29 | 1985-02-22 | アルパイン株式会社 | tape recorder |
JPS6040022U (en) * | 1983-08-20 | 1985-03-20 | 日本ビクター株式会社 | dubbing equipment |
JPS6044220U (en) * | 1983-08-31 | 1985-03-28 | 三洋電機株式会社 | Tape recorder control circuit |
JPS6070922U (en) * | 1983-10-19 | 1985-05-20 | シャープ株式会社 | Dubbing device in magnetic recording/reproducing machine |
JPS60124030A (en) * | 1983-12-08 | 1985-07-02 | Pioneer Electronic Corp | Double deck |
US4836329A (en) * | 1987-07-21 | 1989-06-06 | Hughes Aircraft Company | Loudspeaker system with wide dispersion baffle |
DE4421847C2 (en) * | 1994-06-23 | 1996-06-27 | Fraunhofer Ges Forschung | Device for measuring irregularities in the inner walls of containers with ultrasound |
US5784468A (en) * | 1996-10-07 | 1998-07-21 | Srs Labs, Inc. | Spatial enhancement speaker systems and methods for spatially enhanced sound reproduction |
DE10034474C1 (en) * | 2000-07-15 | 2001-10-11 | Flexim Flexible Industriemeste | Liquid or gas characteristics measuring method using ultrasound has conical wavefront directed through pipe with detection of waves after propagation through the liquid or gas |
DE20116591U1 (en) | 2001-10-10 | 2002-01-24 | Siemens AG, 80333 München | Device for detecting the position of a circuit board |
US7410464B2 (en) * | 2002-06-04 | 2008-08-12 | Moshe Ein-Gal | Wave generating device |
CN110441390B (en) * | 2019-07-18 | 2021-12-07 | 上海大学 | Damage positioning method based on cross array and space-wave number filter |
CN112702669B (en) * | 2020-12-21 | 2023-04-07 | 西安讯飞超脑信息科技有限公司 | Sound pickup apparatus, method, apparatus, system, and storage medium |
EP4086620A1 (en) * | 2021-05-05 | 2022-11-09 | NDT Global Corporate Ltd. Ireland | Method and device for checking the wall of a pipeline for flaws |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU142467A1 (en) * | 1961-01-16 | 1961-11-30 | Я.Ф. Аникеев | Ultrasonic Immersion Flaw Detector |
CH468009A (en) * | 1963-09-10 | 1969-01-31 | Kredit Und Anlage Ag | Device for ultrasonic material testing of bodies with curved surfaces |
-
1973
- 1973-12-26 SU SU732532304A patent/SU740163A3/en active
- 1973-12-26 FR FR7346384A patent/FR2256617B1/fr not_active Expired
-
1974
- 1974-12-20 LU LU71543A patent/LU71543A1/xx unknown
- 1974-12-20 BE BE151768A patent/BE823664A/en unknown
- 1974-12-23 SE SE7416268A patent/SE404845B/en unknown
- 1974-12-23 US US535703A patent/US3916675A/en not_active Expired - Lifetime
- 1974-12-23 GB GB55424/74A patent/GB1495536A/en not_active Expired
- 1974-12-24 NL NL7416832A patent/NL7416832A/en not_active Application Discontinuation
- 1974-12-24 PL PL1974176826A patent/PL104062B1/en unknown
- 1974-12-24 CA CA216,944A patent/CA1009359A/en not_active Expired
- 1974-12-25 SU SU742094237A patent/SU660606A3/en active
- 1974-12-26 JP JP752049A patent/JPS5843693B2/en not_active Expired
- 1974-12-27 DE DE2461590A patent/DE2461590C2/en not_active Expired
- 1974-12-27 IT IT70760/74A patent/IT1027183B/en active
-
1978
- 1978-06-21 SE SE7807113A patent/SE7807113L/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2461590C2 (en) | 1986-08-21 |
CA1009359A (en) | 1977-04-26 |
JPS5843693B2 (en) | 1983-09-28 |
PL104062B1 (en) | 1979-07-31 |
BE823664A (en) | 1975-04-16 |
IT1027183B (en) | 1978-11-20 |
SU660606A3 (en) | 1979-04-30 |
JPS51135589A (en) | 1976-11-24 |
FR2256617B1 (en) | 1980-03-21 |
SE404845B (en) | 1978-10-30 |
DE2461590A1 (en) | 1975-07-10 |
NL7416832A (en) | 1975-06-30 |
FR2256617A1 (en) | 1975-07-25 |
LU71543A1 (en) | 1975-06-17 |
SE7807113L (en) | 1978-06-21 |
US3916675A (en) | 1975-11-04 |
GB1495536A (en) | 1977-12-21 |
SE7416268L (en) | 1975-06-27 |
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