CN205581061U - Portable sensor aluminum pipe defect detecting positioner - Google Patents
Portable sensor aluminum pipe defect detecting positioner Download PDFInfo
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- CN205581061U CN205581061U CN201620386051.7U CN201620386051U CN205581061U CN 205581061 U CN205581061 U CN 205581061U CN 201620386051 U CN201620386051 U CN 201620386051U CN 205581061 U CN205581061 U CN 205581061U
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- voussoir
- aluminum pipe
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Abstract
The utility model relates to a portable sensor aluminum pipe defect detecting positioner. The utility model discloses a signal generator, power amplifier, transmitting transducer, first voussoir, the second voussoir, the receiving transducer, oscilloscope, three -dimensional precision movement control system, signal generator passes through power amplifier and is connected with transmitting transducer, the ultrasonic wave that transmitting transducer sent transmits to through first voussoir is surveyed the aluminum pipe, and form the detected signal that has characteristic signal with defect interact in being surveyed the aluminum pipe, the receiving transducer passes through the second voussoir and accepts this detected signal, and transmit this detected signal to oscilloscope and show and store. The utility model discloses it is with low costs, convenient operation to the experimental result error that the mutual performance difference of a plurality of sensors leads to has been avoided.
Description
Technical field
This utility model relates to a kind of removable sensor aluminum pipe defects detection positioner.
Background technology
Pipeline is one of big means of transport of existing five, and it has special advantage at aspects such as transporting liquid, gas, serosity, especially has irreplaceable effect in the industry such as petrochemical industry and natural gas.Oil and gas pipes can engender number of drawbacks in running all the year round under the effect of various factors, and the properly functioning of pipeline can be constituted a threat to by the existence of some defect, and severe patient may cause pipe leakage, causes the significant wastage of environmental pollution and resource.Therefore, it is necessary to study a kind of technology that can accurately detect metallic conduit earlier damage, Ultrasonic Nondestructive is one of method for detecting pipeline of being expected at present most, but conventional linear ultrasonic detecting technology is to be detected by linear characters such as the reflection of transmitting signal, decay, transmissions, but owing to the reflection echo intensity of defect is low, absorbance is high, decay the reason such as little, causes conventional Ultrasound detection method insensitive to tiny flaw.Researcher finds both at home and abroad, and non-linear ultrasonic detection method can detect material incipient fatigue damage, internal contact defect etc. well.When non-linear ultrasonic detection is to utilize ultrasound wave to propagate in the material, medium or tiny flaw interact therewith the nonlinear response signal of generation, carry out the assessment of material property and the detection of tiny flaw.Limited amplitude method is the one in non-linear ultrasonic detection method, and it utilizes the ultrasound wave of the big amplitude of unifrequency to make material internal defect forced vibration thus allows sound wave produce distortion and higher hamonic wave occur.But this method can only detect defect qualitatively, can not realize the quantitative assessment to defect and location.
Summary of the invention
This utility model is for the deficiencies in the prior art, it is provided that a kind of removable sensor aluminum pipe defects detection positioner.
The technical scheme that this utility model solution technical problem is taked is:
This utility model includes signal generator, power amplifier, transmitting transducer, the first voussoir, the second voussoir, receives transducer, oscillograph, three-dimensional precise kinetic control system, signal generator is connected with transmitting transducer by power amplifier, the ultrasound wave that transmitting transducer sends is delivered to tested aluminum pipe by the first voussoir, and the formation detection signal with characteristic signal that interacts with defect in tested aluminum pipe, receive transducer and accept this detection signal by the second voussoir, and this detection signal is transferred to oscillograph carries out showing and storing.
Described transmitting transducer and receive that transducer is separated by a distance is arranged in three-dimensional precise kinetic control system so that transmitting transducer and receive transducer can on three-dimensional relative motion.
Furtherly, described first voussoir and the second voussoir all use lucite.
The beneficial effects of the utility model: compared with traditional on aluminum pipe, arrange that multiple ultrasonic transducer receives detection signal and re-emits with former transducer time inverted signal, the Energy distribution situation obtaining sound wave by laser vibration measurer scanning aluminum tube surfaces determines crack position.This utility model receives detection signal by single moveable transducer at aluminum pipe diverse location, and anti-sound wave focusing in aluminum pipe when simulating by finite element emulation software, make its low cost, easy to operate, and avoid the experimental result error that multiple sensor mutual performance difference causes.
Accompanying drawing explanation
Fig. 1 is Cleaning Principle figure.
Fig. 2 is detection device schematic diagram.
Fig. 3 is the frequency domain figure of one of which experimental data.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As depicted in figs. 1 and 2, this utility model includes signal generator 1, power amplifier 2, transmitting transducer 3, first voussoir 4, second voussoir, receive transducer 6, oscillograph 8, three-dimensional precise kinetic control system 7, signal generator is connected with transmitting transducer by power amplifier, the ultrasound wave that transmitting transducer sends is delivered to tested aluminum pipe 5 by the first voussoir, and the formation detection signal with characteristic signal that interacts with defect in aluminum pipe, receive transducer and accept this detection signal by the second voussoir, and this detection signal is transferred to oscillograph carries out showing and storing.
Three-dimensional precise kinetic control system in the present embodiment is mainly made up of workbench 9, transducer fixture 10, bearing fixture 11, motor 12, screw mandrel 13 and guide rail 14.Workbench central authorities are placed with tested aluminum pipe, motor drives screw mandrel to rotate, thus control the lateral separation between two transducers, guide rail fore-and-aft distance between regulation two transducers, it is provided with height adjustment mechanism on the pedestal of guide rail place, equipped with bearing fixture on this height adjustment mechanism, bearing fixture is connected with transducer fixture.
Utility model works process: first produced high-frequency sine wave by signal generator, transmitting transducer is encouraged to produce big amplitude ultrasound wave after power amplifier amplifies, ultrasound wave is delivered to defective aluminum pipe by voussoir, sound wave is distorted generation higher hamonic wave when being propagated through defect in aluminum pipe, moving reception ultrasonic transducer by three-dimensional precise kinetic control system makes it receive detection signal at aluminum pipe diverse location, and by oscilloscope display and storage.The each group data obtained with there being limit for length's impact response filter filter pumping signal and take when it is carried out by reasonable time reversion window anti-.Set up and reality tested aluminum pipe same size, structure, the model of material with ANSYS finite element analysis software simultaneously, and anti-characteristic signal emulating during applying on the point that actual measured body receives sensor same position.Just can determine that crack position by observing the cloud atlas of phantom, and according to the focus signal maximum amplitude of sound wave anti-during cracks with average amplitude than the assessment order of severity.
Embodiment: use long 800mm, internal diameter 50mm, external diameter 54mm, there are 5056 aluminum pipes of one section of fatigue crack at center as detection object, and to select subsequent corrosion be 27mm, height overall 50mm, thick 50mm, material is that the voussoir of lucite is as the connector between aluminum pipe and transducer so that planar transducer can be used for detecting curved surface aluminum pipe.The mid frequency launching ultrasonic transducer is 1.39MHz, and can produce frequency due to ultrasound wave and defect phase interaction that frequency is f is nf(n=1,2,3 ...) higher hamonic wave.So selecting the reception ultrasonic transducer that mid frequency and bandwidth will be bigger.Produced 1.4MHz frequency, the sine wave of 5V voltage by signal generator, after amplifying 20dB by power amplifier, encourage transducer to produce big amplitude ultrasound wave.Received the detection signal that there occurs wave distortion through defective locations again by another transducer, and store with oscillograph and display.For ensureing experimental precision, oscillograph stores step-length and is set to 10e-8s, and the storage degree of depth is 70k.Finally moving transducer makes it receive detection signal at the diverse location of aluminum pipe.
Fig. 3 is the frequency domain figure of one of which experimental data, it appeared that occur in that, in detection signal, the second harmonic and triple-frequency harmonics that frequency is 2.8MHz, 4.2MHz.With the fdatool kit designs high pass filter carried in matlab software to filter excitation sound wave, the phase information of inverted signal when being of anti-focusing effect during owing to affecting, for ensureing that filtered signal phase does not changes, use have a linear phase characteristic to have limit for length's impact response filter.Take window T=[0.2,0.6] ms time reversal and filtered characteristic signal is carried out time reversal normalized.Set up aluminum pipe model load time reversion sound wave, observing and nursing cloud atlas with ansys finite element software, find to focus at aluminum pipe fault location at 0.64ms moment sound wave.
Claims (2)
1. a removable sensor aluminum pipe defects detection positioner, including signal generator, power amplifier, transmitting transducer, the first voussoir, the second voussoir, receives transducer, oscillograph, three-dimensional precise kinetic control system, it is characterised in that:
Signal generator is connected with transmitting transducer by power amplifier, the ultrasound wave that transmitting transducer sends is delivered to tested aluminum pipe by the first voussoir, and the formation detection signal with characteristic signal that interacts with defect in tested aluminum pipe, receive transducer and accept this detection signal by the second voussoir, and this detection signal is transferred to oscillograph carries out showing and storing；
Described transmitting transducer and receive that transducer is separated by a distance is arranged in three-dimensional precise kinetic control system so that transmitting transducer and receive transducer can on three-dimensional relative motion.
One the most according to claim 1 may move sensor aluminum pipe defects detection positioner, it is characterised in that: described first voussoir and the second voussoir all use lucite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620386051.7U CN205581061U (en) | 2016-05-03 | 2016-05-03 | Portable sensor aluminum pipe defect detecting positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620386051.7U CN205581061U (en) | 2016-05-03 | 2016-05-03 | Portable sensor aluminum pipe defect detecting positioner |
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| Publication Number | Publication Date |
|---|---|
| CN205581061U true CN205581061U (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620386051.7U Expired - Fee Related CN205581061U (en) | 2016-05-03 | 2016-05-03 | Portable sensor aluminum pipe defect detecting positioner |
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| Country | Link |
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| CN (1) | CN205581061U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144635A (en) * | 2017-05-05 | 2017-09-08 | 宁波城市职业技术学院 | A kind of wood materials ultrasonic non-destructive classified detection system and its detection method |
| CN111678587A (en) * | 2020-06-23 | 2020-09-18 | 同济大学 | Device and method for measuring focal domain and sensitivity of self-focusing ultrasonic transducer |
| CN112666252A (en) * | 2020-12-03 | 2021-04-16 | 重庆交通大学 | Non-collinear mixing test system and method for nonlinear ultrasound |
-
2016
- 2016-05-03 CN CN201620386051.7U patent/CN205581061U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144635A (en) * | 2017-05-05 | 2017-09-08 | 宁波城市职业技术学院 | A kind of wood materials ultrasonic non-destructive classified detection system and its detection method |
| CN107144635B (en) * | 2017-05-05 | 2019-11-12 | 宁波城市职业技术学院 | A kind of detection method of wood materials ultrasonic non-destructive classified detection system |
| CN111678587A (en) * | 2020-06-23 | 2020-09-18 | 同济大学 | Device and method for measuring focal domain and sensitivity of self-focusing ultrasonic transducer |
| CN111678587B (en) * | 2020-06-23 | 2021-09-03 | 同济大学 | Method for measuring focal domain and sensitivity of self-focusing ultrasonic transducer |
| CN112666252A (en) * | 2020-12-03 | 2021-04-16 | 重庆交通大学 | Non-collinear mixing test system and method for nonlinear ultrasound |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20190503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |