CN2249900Y - Supersonic blindarealess probe for inspecting pipes, rods, plates and wheel bands - Google Patents
Supersonic blindarealess probe for inspecting pipes, rods, plates and wheel bands Download PDFInfo
- Publication number
- CN2249900Y CN2249900Y CN 95240656 CN95240656U CN2249900Y CN 2249900 Y CN2249900 Y CN 2249900Y CN 95240656 CN95240656 CN 95240656 CN 95240656 U CN95240656 U CN 95240656U CN 2249900 Y CN2249900 Y CN 2249900Y
- Authority
- CN
- China
- Prior art keywords
- probe
- delay
- block
- delay block
- blind area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to an ultrasonic no blind zone probe for detection pipes, rods, plates and wheel bands, comprising two parallel piezoelectric wafers, the lower part of each piezoelectric wafer is provided with a delay block, and included acute angles of the plane of the piezoelectric wafers and the bottoms of the delay blocks are equal. When used, the two output bundles of ultrasonic wave frequency are equal with bi-directional emitting and bi-directional receiving. So the mutual stacking is strengthen, no blocking phenomenon is formed between the two bundles of waves, the detection range is also enlarged, and the utility model also increases resolution and basically eliminates blind zones.
Description
The utility model relates to the parts whether a kind of ultrasound wave lossless detection metal material and goods have defective device therefors such as pore, folder ash, crack.
Existing UT (Ultrasonic Testing) is with popping one's head in, a kind of is conventional normal probe, this probe is fine for part, the effect in the far-field region of detecting material, then effect is relatively poor as if the in-plant situation of detecting material, the one, the blind area of normal probe is bigger, thereby can not find the nearly surperficial defective of material, and the 2nd, load beginning ripple accounts for wide bigger, so be difficult to the in-plant defective of identification.Be detecting material situation closely, often adopt double crystal probe, as shown in Figure 1, this probe have two be oppositely arranged, piezoelectric chip that the inclination angle is identical, wherein a wafer (4a) is used to launch ultrasound wave, and another wafer (5a) is used to receive ultrasound wave, and a delay block (2a is all arranged below every wafer, 3a), isolate with sound insulating layer (6a) between two delay blocks.The probe of this structure, when being used for the in-plant situation of detecting material, effect is better, the one, owing to have certain refraction angle between the wafer of probe and the measured material, so there is shear wave to generate, thereby the blind area is reduced, the 2nd, the emission wafer and receive that wafer is born separately by two wafer respectively and delay block between have sound insulating layer to isolate, not only can not cause choking phenomenon, and it is little to make load beginning ripple account for reductions, thereby this probe be used for detecting material closely during situation effect better, but because the influence of factors such as the existence of separation layer and ultrasound wave incident angle is arranged, can not solve the problem that blind area (as the 1a of Fig. 1) exists that goes up of eliminating all the time.
The purpose of this utility model is, provides a kind of when carrying out the closely flaw detection of material, the sound-pipe rod sheet material of supreme substantially blind area and the ultrasonic probe of rim.
The technical scheme that realizes the utility model purpose is (referring to Fig. 2), this probe has shell (1) and junction block (8), junction block (8) is fixed on the shell (1), its design feature is, also have two block-shaped identical delay blocks (2,3), delay block (2,3) basic configuration is a prism, with a side of this prism as delay block (2,3) bottom surface, delay block (2,3) be located in the shell (1) and be positioned at its below, two delay blocks (2,3) bottom surface at grade, this probe also has two piezoelectric chips (4 in parallel, 5), the outside in outwardly the one side relative with the bottom surface of delay block (2,3) respectively is provided with a slice piezoelectric chip (4,5), piezoelectric chip (4,5) plane, place is with the folded acute angle in delay block (2,3) bottom surface is equal substantially separately, and error is not more than 0.5 degree, and the scope of folded acute angle is 36 °～48 °, two polar surface of the same polarity of two piezoelectric chips (4,5) are communicated with by a pass line (6), and two polar surface of another polarity are communicated with by an other pass line (7), two-way lead-in wire (6,7) road in link to each other with the heart yearn mouth of junction block (8), and another road is connected with the pedestal of junction block (8), at piezoelectric chip (4,5) around top and the delay block (2,3) and top is provided with the damping material (9) that each parts is fused.
Consider when this probe is used more convenient to operate, between two delay blocks (2,3) of this probe or also be provided with magnetic material (10) on every side.
Consider that making this probe can be used as common Single crystal probe uses, on a pass line of the two-way lead-in wire (6,7) of this probe an on-off switch (11) is set, switch (11) is fixed on the shell (1).
The basic configuration of above-mentioned delay block (2,3) is a four prisms cylinder.
Consider two piezoelectric chips (4 that make this probe, 5) with each self-corresponding delay block (2,3) bottom surface between the degree of consistency of formed angle better, at two delay blocks (2,3) be provided with the dowel (12) that two delay blocks (2,3) are fixedly connected of same material between.
The utlity model has positive effect: (1) the utility model can be eliminated the existence of blind area in use substantially, can make the blind area be not more than 0.1mm, and some developed countries produce USK7D type, USF10 type, 11 type ultra-sonic defect detectors and probe combination as Germany, and blind area is not less than 7mm on it; Even burst pulse compressional wave normal probe produces 5N14 type defectoscope and probe as Germany, blind area also reaches 2mm on it, and this equipment cost higher price costliness.And this probe can match with domestic and international conventional ultrasound defectoscope, and the cost of probe own is only slightly high than common probe cost, therefore has very wide application prospect.(2) after the utility model is provided with magnetic material, substantially do not influence the function of probe, when the flaw detection that is used for ferrous materials, very convenient, can be widely used in aerospace appts, the flaw detection of the scene of the inside of equipment, bottom and side also can be used for the deep water flaw detection of subsea equipment, solved both at home and abroad to material can't be with the difficult problem of contact method flaw detection less than 0.5mm near field region part.Because carrying out the near field region, existing ultra-sonic defect detector surveys, though the parts of some mini-plants can carry out the near field region flaw detection in water or in the oil, but for the main equipment device, as then can't carry out at all to the regular flaw detection of aircraft, steamer, submarine etc. and the flaw detection that can not dismantle the oil filled equipment that maybe can not soak, just can more conveniently carry out the near field region flaw detection after using probe of the present utility model, thereby the utlity model has the practical significance of bigger value the above-mentioned scene that is equipped in.(3) the utility model also can be used as common Single crystal probe use, can be used for detecting material situation slightly at a distance.After using dowel fixedly connected between two delay blocks of the present utility model, can make the inclination angle degree of consistency of two plates better, can obtain better Effect on Detecting.
Fig. 1 is the structural representation of existing double crystal probe.
Fig. 2 is a structural representation of the present utility model.
Synoptic diagram when Fig. 3 uses for the utility model.
Below in conjunction with accompanying drawing, embodiment and application examples the utility model is further described.
Embodiment 1
Referring to Fig. 2,
Making the straight-through basic configuration in bottom with alloy aluminum is the housing (1) of rectangle, link seat (8) on the circular hole of the side on the top of housing (1), fixing on-off switch (11) on the circular hole at the top of housing (1).
Make as shown in the figure the delay block that is shaped as four prisms cylinder (2 with poly-maple organic glass, 3), make length is the longest in the four prisms cylinder a side as delay block (2,3) bottom surface, select for use high lead titanate piezoelectric ceramics sheet PT6 as piezoelectric chip (4,5), with hindering cementing agent in a low voice with piezoelectric chip (4,5) be separately fixed on the side relative of corresponding delay block (2,3), and make piezoelectric chip (4 with the bottom surface, 5) negative pole down, make piezoelectric chip (4,5) plane, place and the folded acute angle in delay block (2,3) bottom surface separately be 45 degree, and make two piezoelectric chips (4 with the silver-plated copper lead of a pass line (6), 5) negative pole is connected, and the positive pole of two piezoelectric chips (4,5) is connected through switch (11).
To be fixed with piezoelectric chip (4,5) delay block (2,3) be symmetrically placed in the housing (1) and place its underpart, make two delay blocks (2,3) bottom surface at grade, and make and be fixed with piezoelectric chip (4,5) one side outwardly, to place two delay blocks (2 by the rectangular parallelepiped magnetic patch (10) that permanent magnetic material is made simultaneously, 3) between, its bottom surface is a little more than the bottom surface of delay block (4,5), will with piezoelectric chip (4,5) the continuous pass line (6) of negative pole is connected to the pedestal of junction block (8), to be connected to the heart yearn interface of junction block (8) with the anodal pass line (7) that links to each other of piezoelectric chip (4,5), wherein the lead that links to each other with piezoelectric chip (4) links to each other through the heart yearn interface of on-off switch (11) with junction block (8).
At last, reaching top around delay block (2,3) is damping material (8) encapsulation of principal ingredient in order to epoxy resin, and each parts in the housing (1) fixedly are connected as a single entity.
Referring to Fig. 2, all the other are identical with embodiment 1, and difference is, uses aerial organic glass as making delay block (2,3) material, when cast delay block (2,3), make two delay blocks (2,3) moulding simultaneously, and have two dowels (12) that are connected as a single entity with delay block (2,3) between two delay blocks (2,3).
Application examples
Referring to Fig. 3,
Get one of the utility model of embodiment 1 gained, junction block connects the high-frequency electrical cable on (8), the other end of high-frequency electrical cable links to each other with the ultra-sonic defect detector pulse signal output end, by method shown in Figure 3 bar-shaped workpieces is detected a flaw, because piezoelectric chip (2,3) for being connected in parallel, so the pulse signal of ultra-sonic defect detector is simultaneously to two piezoelectric chips (2,3) effect and make it to produce vibration, by the selection of parameter, make two piezoelectric chips (2,3) launch the ultrasound wave of same frequency, when incident angle is in certain range of choice, two piezoelectric chips (4,5) two-way emission simultaneously, two-way reception ultrasound wave, Main beam enter that its principal ingredient is a shear wave behind the workpiece, and generation surface wave, climb ripple etc., these ultrasound wave mutual superposition form the effect of similar standing wave, thus non-obstruction phenomenon between the wave beam not only, and also investigative range strengthens, resolution is improved greatly, eliminated last blind area substantially.Dotted line is the shear wave Main beam of probe emission among the figure.
Claims (5)
1, the ultrasound wave non-blind area probe of a kind of sound-pipe rod sheet material and rim, have shell (1) and junction block (8), junction block (8) is fixed on the shell (1), it is characterized in that, also have two block-shaped identical delay blocks (2,3), delay block (2,3) basic configuration is a prism, with a side of this prism as delay block (2,3) bottom surface, delay block (2,3) be located in the shell (1) and be positioned at its below, the bottom surface of two delay blocks at grade, this probe also has two piezoelectric chips (4 in parallel, 5), at delay block (2, the outside of outwardly the one side relative with the bottom surface 3) respectively is provided with a slice piezoelectric chip (4,5), piezoelectric chip (4,5) plane, place and delay block (2 separately, 3) the folded acute angle in bottom surface is equal substantially, error is not more than 0.5 degree, and the scope of folded acute angle is 36 °～48 °, two piezoelectric chips (4, two polar surface of same polarity 5) are communicated with by a pass line (6), two polar surface of another polarity are communicated with by an other pass line (7), and a road in the two-way lead-in wire (6,7) links to each other with the heart yearn mouth of junction block (8), another road is connected with the pedestal of junction block (8), be provided with damping material (9) that each parts fused in the top of piezoelectric chip (4,5) and the top that reaches of delay block (2,3) on every side.
2, the ultrasound wave non-blind area probe of sound-pipe according to claim 1 rod sheet material and rim is characterized in that, between two delays (2,3) or also be provided with magnetic material (10) on every side.
3, the ultrasound wave non-blind area probe of sound-pipe rod sheet material according to claim 1 and 2 and rim is characterized in that, on a pass line of two-way lead-in wire (6,7) on-off switch (11) is set, switch (11) is fixed on the shell (1).
4, the ultrasound wave non-blind area probe of sound-pipe rod sheet material according to claim 1 and 2 and rim is characterized in that the basic configuration of delay block (2,3) is a four prisms cylinder.
5, the ultrasound wave non-blind area probe of sound-pipe rod sheet material according to claim 1 and 2 and rim is characterized in that, is provided with the dowel (12) that two delay blocks (2,3) are fixedly connected of same material between two delay blocks (2,3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240656 CN2249900Y (en) | 1995-10-11 | 1995-10-11 | Supersonic blindarealess probe for inspecting pipes, rods, plates and wheel bands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240656 CN2249900Y (en) | 1995-10-11 | 1995-10-11 | Supersonic blindarealess probe for inspecting pipes, rods, plates and wheel bands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249900Y true CN2249900Y (en) | 1997-03-19 |
Family
ID=33882196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240656 Expired - Fee Related CN2249900Y (en) | 1995-10-11 | 1995-10-11 | Supersonic blindarealess probe for inspecting pipes, rods, plates and wheel bands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249900Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180854A (en) * | 2015-10-07 | 2015-12-23 | 华北水利水电大学 | Large-power four-crystal integrated ultrasonic transducer |
| CN106324095A (en) * | 2016-08-26 | 2017-01-11 | 大连天亿软件有限公司 | Longitudinal wave normal probe full-beam-path non-blind-area flaw detecting method |
| CN113739729A (en) * | 2021-10-21 | 2021-12-03 | 辽宁工程技术大学 | Coal mine underground reservoir water-proof coal rock pillar thickness nondestructive detection technology test device |
-
1995
- 1995-10-11 CN CN 95240656 patent/CN2249900Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180854A (en) * | 2015-10-07 | 2015-12-23 | 华北水利水电大学 | Large-power four-crystal integrated ultrasonic transducer |
| CN106324095A (en) * | 2016-08-26 | 2017-01-11 | 大连天亿软件有限公司 | Longitudinal wave normal probe full-beam-path non-blind-area flaw detecting method |
| CN113739729A (en) * | 2021-10-21 | 2021-12-03 | 辽宁工程技术大学 | Coal mine underground reservoir water-proof coal rock pillar thickness nondestructive detection technology test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202066838U (en) | Ultrasonic dually-oblique probe for welding seam detection | |
| US6671380B2 (en) | Acoustic transducer with spiral-shaped piezoelectric shell | |
| US3933026A (en) | Ultrasonic calibration standard | |
| EP0019267A1 (en) | Piezoelectric vibration transducer | |
| WO1996022527A1 (en) | Bore probe for tube inspection with guided waves and method therefor | |
| CN110193460B (en) | Omnidirectional magnetic concentrator type lamb wave electromagnetic acoustic transducer | |
| US3916676A (en) | Method of and apparatus for measuring automatically successive sections of an elongated material | |
| CN107121499B (en) | Single-chip and phased array ultrasonic combined probe | |
| CN2249900Y (en) | Supersonic blindarealess probe for inspecting pipes, rods, plates and wheel bands | |
| CN2807256Y (en) | Ultrasonic assembled probe used for longitudinal/transverse wave combining detection of defects | |
| CA2376082A1 (en) | High resolution focused ultrasonic transducer | |
| CN106053612A (en) | Probe for detection of shaft-mounted brake disc hub mounting base of motor train unit and detection method of probe | |
| US4467237A (en) | Multielement ultrasonic probe and its production process | |
| CN110261486B (en) | Ultrasonic probe capable of transmitting multi-frequency signals and manufacturing process thereof | |
| CN109001300A (en) | A kind of sound arrester being suitable for impact echo audio frequency detection | |
| CN105974281A (en) | Detection system and detection method used for positioning partial discharge of voltage transformer | |
| CN106680377A (en) | Ultrasonic array transducer for detecting rib zone of composite material structure | |
| CN110244196B (en) | Ultrasonic enhanced receiver for partial discharge measurement and design method thereof | |
| CN215812584U (en) | Probe and device for realizing electromagnetic ultrasonic SH imaging detection of defects of high-temperature casting and forging | |
| CN205844275U (en) | Probe for the detection of EMUs axle-mounted brake disk hub mounting seat | |
| Atalar et al. | A high efficiency Lamb wave lens for subsurface imaging | |
| RU2294061C1 (en) | Multicomponent piezoelectric transducer and its manufacturing process | |
| CN108535609A (en) | A kind of PCB antenna and the external acoustic-electric compound sensor for the detection of GIS insulation defects | |
| CN209927784U (en) | Fillet weld ultrasonic testing is with taking water pocket reinforcing coupling type 2D matrix probe | |
| CN207967296U (en) | A wavy resonant antenna for transmission line abnormal discharge detects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |