CN102944611A - Steel tube nondestructive testing system using magnetostriction torsion ultrasonic guided waves - Google Patents
Steel tube nondestructive testing system using magnetostriction torsion ultrasonic guided waves Download PDFInfo
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- CN102944611A CN102944611A CN2012104765766A CN201210476576A CN102944611A CN 102944611 A CN102944611 A CN 102944611A CN 2012104765766 A CN2012104765766 A CN 2012104765766A CN 201210476576 A CN201210476576 A CN 201210476576A CN 102944611 A CN102944611 A CN 102944611A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 238000009659 non-destructive testing Methods 0.000 title abstract description 6
- 239000000523 sample Substances 0.000 claims abstract description 46
- 230000003321 amplification Effects 0.000 claims abstract description 21
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 12
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- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
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Abstract
The invention discloses a steel tube nondestructive testing system using magnetostriction torsion ultrasonic guided waves. A magnetostriction strip, a magnetostriction torsion ultrasonic guided wave probe and a high pressure air bag are sequentially installed on a tested steel tube, one end of a probe cable is connected with a magnetostriction torsion ultrasonic guided wave probe, the other end of the probe cable is respectively connected with a pulse amplification module and a signal conditioning module, the singal conditioning module is sequentially connected with a signal processing module and an embedded display module, and an embedded control module is connected with a control pulse amplification module. When signals of the pulse amplification module pass though the magnetostriction torsion ultrasonic guided wave probe, torsion ultrasonic guided waves are generated in the tested steel tube to be transmitted in the steel tube; and when the torsion ultrasonic guided waves encounter defects of the steel tube, the reflected ultrasonic guided waves are received by the probe and subjected to signal processing by the singal conditioning module and the signal processing module, and the defects of the steel tube is displayed on the embedded display module. By means of the steel tube nondestructive testing system using the magnetostriction torsion ultrasonic guided waves, nondestructive testing of corrosion, end surfaces and length of steel tube stand columns are achieved, the testing efficiencies are high, and the system is convenient and reliable.
Description
Technical field
The present invention relates to a kind of steel pipe nondestructive detection system, especially relate to a kind of steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave.
Background technology
Steel pipe is widely used in a lot of fields such as industry, traffic.In a lot of application scenarios, the duty status of steel pipe post, whether there is the damaged property life to enterprise, the people of corrosion to have a significant impact, the steel pipe post of some seriously corrodeds is difficult to guarantee the normal operation when causing danger situation.
Such as the guardrail of using at highway, inadequate if guardrail is imbedded the degree of depth at the end, ground even if guardrail does not corrode breakage, can not guarantee the normal operation of guardrail; If guardrail can not guarantee the normal operation of guardrail because long-time outdoor military service produces the situations such as some crackles, corrosion.The tracheae of a lot of outdoor layings of picture, oil pipe etc. also need its duty status is detected in addition.
The patent No. 200610003437.6 has been announced checkout equipment and the detection method that adopts impact elasticity wave measurement guard rail steel pipe post buried depth, adopt a vibration hammer to excite elastic wave, the ripple that inspires like this has randomness and propagation distance is not far, and the method can only detect buried depth.The patent No. 200710053532.1 has been announced based on the magnetostriction torsional wave and has been detected the device that magnetic conduction makes up defective, wherein adopt the mode of permanent magnet and coil to inspire torsional wave, structural volume is large, use is inconvenient, and excitation is adopted respectively different probes with receiving.
Summary of the invention
The object of the present invention is to provide a kind of steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave, employing motivates in steel pipe post to be reversed supersonic guide-wave and analyzes and to reverse the propagation of supersonic guide-wave in steel pipe post, draw the information such as burn into end face, length of steel pipe post, reach the steel pipe post Non-Destructive Testing.
The technical solution used in the present invention is:
The present invention includes signal processing module, embedded type control module, the pulse amplification module, probe cable, ultrasonic probe is reversed in magnetostriction, magnetostriction band, high-pressure gasbag, signal condition module, embedded display module, compressed air pump; The magnetostriction band is wrapped in tested steel pipe top layer, the top layer that ultrasonic probe is wrapped in the magnetostriction band is reversed in magnetostriction, be wrapped in the top layer that ultrasonic probe is reversed in magnetostriction with high-pressure gasbag, one end and the magnetostriction of probe cable are reversed ultrasonic probe and are connected, the other end of probe cable is connected with the signal condition module with the pulse amplification module respectively, the signal condition module successively with signal processing module be connected display module and be connected, embedded type control module is connected with the gating pulse amplification module.
Described embedded type control module mainly is comprised of dsp chip tms320f28069 and Direct Digital frequency synthesis chip AD9833, integrated double operational ADA4896 and peripheral circuit thereof; Dsp chip tms320f28069 communicates by letter with AD9833 by the spi interface, and control AD9833 output pulse waveform, the output pulse waveform of AD9833 carry out one-level through ADA4896 and amplify, and are input to the pulse amplification module.
Described signal processing module: comprise dsp chip tms320f28069, an A/D converting member on the dsp chip tms320f28069 is the continuous analog signal conversion of signal condition module output digital signal, signal is carried out digital average, the operation digital filtering algorithm obtains useful signal, and the signal of signal processing module output is input to embedded display module by USB interface.
Described signal condition module: mainly formed by two parts, the amplifying circuit that first is comprised of operational amplifier, the differential bandpass filter that second portion is comprised of two Lt1994ims8, the signal of process filtering is input to signal processing module.
Described embedded display module is comprised of ARM flush bonding processor AM3517AZERA and FLASH chip and two SDRAM chips and other peripheral circuit, and load embedded Linux operating system, by carrying out application programming in embedded Linux operating system; Flush bonding processor AM3517AZERA is by the data of the USB interface read signal processing module output of the dsp chip tms320f28069 of USB interface from signal processing module, by the control of the LCD in embedded display module control module control TFT LCDs, data are presented on the liquid crystal display again.
The beneficial effect that the present invention has is:
The present invention can realize that the burn into end face, length to steel pipe post etc. carries out Non-Destructive Testing, and detection efficiency is high, and is convenient and reliable.Improved greatly the accurate type of in advance detection of steel pipe post.
Description of drawings
Fig. 1 is general illustration of the present invention.
Fig. 2 is that DSP embedded is enclosed circuit diagram.
Fig. 3 is the filtering circuit figure in the signal condition module.
Fig. 4 is the Direct Digital frequency synthesizer circuit figure in the embedded type control module.
The embedded display module block diagram of Fig. 5.
Among the figure: 1, signal processing module, 2, embedded type control module, 3, pulse amplification module, 4, probe cable, 5, magnetostriction reverses ultrasonic probe, 6, magnetostriction band, 7, tested steel pipe, 8, high-pressure gasbag, 9, the signal condition module, 10, embedded display module, 11, compressed air pump.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention includes signal processing module 1, embedded type control module 2, pulse amplification module 3, probe cable 4, magnetostriction reverse ultrasonic probe 5, magnetostriction band 6, high-pressure gasbag 8, signal condition module 9, embedded display module 10, compressed air pump 11; Magnetostriction band 6 is wrapped in tested steel pipe 7 top layers, the top layer that ultrasonic probe 5 is wrapped in magnetostriction band 6 is reversed in magnetostriction, be wrapped in the top layer that ultrasonic probe 5 is reversed in magnetostriction with high-pressure gasbag 8, one end and the magnetostriction of probe cable 4 reversed ultrasonic probe 5 and is connected, the other end of probe cable 4 is connected with the signal condition module with pulse amplification module 3 respectively and is connected, signal condition module 9 successively with signal processing module 1 be connected display module 10 and be connected, embedded type control module 2 is connected with gating pulse amplification module 3.
Such as Fig. 4, shown in Figure 2, described embedded type control module 2 mainly is comprised of dsp chip tms320f28069 and Direct Digital frequency synthesis chip AD9833, integrated double operational ADA4896 and peripheral circuit thereof; Dsp chip tms320f28069 communicates by letter with AD9833 by the spi interface, and control AD9833 output pulse waveform, the output pulse waveform of AD9833 carry out one-level through ADA4896 and amplify, and are input to pulse amplification module 3.
As shown in Figure 2, described signal processing module 1 comprises dsp chip tms320f28069, an A/D change-over circuit on the dsp chip tms320f28069 is the continuous analog signal conversion of signal condition module 9 outputs digital signal, signal is carried out digital average, the operation digital filtering algorithm obtains useful signal, and the signal of signal processing module 1 output is input to embedded display module 10 by USB interface.
As shown in Figure 3, described signal condition module 9 mainly is comprised of two parts, three grades of in-phase amplification circuits that first is comprised of operational amplifier A D811, the differential bandpass filter that second portion is comprised of two Lt1994ims8, the signal of process filtering is input to signal processing module 1.
As shown in Figure 5, described embedded display module 10 is comprised of ARM flush bonding processor AM3517AZERA and FLASH chip and two SDRAM chips and other peripheral circuit, and load embedded Linux operating system, by carrying out application programming in embedded Linux operating system; Flush bonding processor AM3517AZERA is by the data of the USB interface read signal processing module output of the dsp chip tms320f28069 of USB interface from signal processing module 1, by the control of the LCD in the embedded display module 10 control module control TFT LCDs, data are presented on the liquid crystal display again.
As shown in Figure 1, magnetostriction band 6 is wrapped in tested steel pipe 7 top layers, the top layer that ultrasonic probe 5 is wrapped in magnetostriction band 6 is reversed in magnetostriction, be wrapped in the top layer that ultrasonic probe 5 is reversed in magnetostriction with high-pressure gasbag 8, open 8 inflations of 11 pairs of high-pressure gasbags of pneumatic pump, stopping inflation when high-pressure gasbag pressure reaches 2.5Mpa, is that ultrasonic probe 5, high-pressure gasbag 8 are reversed in magnetostriction band 6, magnetostriction so from the inside to surface successively.The effect of high-pressure gasbag 8 is ultrasonic probe 5 compressions to be reversed in magnetostriction band 6 and magnetostriction make it be close to tested steel pipe 7 surfaces.
As shown in Figure 1, probe cable 4 reverses ultrasonic probe 5 from magnetostriction and is connected to pulse amplification module 3 and signal condition module 9.Open embedded display module 10, and it is frequency 60KHz square wave that output waveform is set in embedded display module 10, periodicity is 4, and these parameters are transferred to embedded type control module 2 and 3 outputs of gating pulse amplification module by the USB interface of embedded-type ARM chip AM3517AZERA among Fig. 5.In the time of embedded type control module 2 gating pulse amplification modules 3 output signal, the A/D change-over circuit of control signal processing module 1 begins the signal of collection signal conditioning module 9 inputs.
The signal of pulse amplification module 3 outputs is transferred to magnetostriction by probe cable 4 and reverses ultrasonic probe 5, the acting in conjunction of ultrasonic probe 5 and magnetostriction band 6 is reversed in magnetostriction, produce magnetostrictive effect, in tested steel pipe 7, produce and reverse supersonic guide-wave, this reverses supersonic guide-wave and propagates along tested steel pipe 7, when the end face that runs into tested steel pipe 7 or during the defectives such as corrosion, reverse supersonic guide-wave because acoustic impedance is discontinuous, produce reflection and reverse supersonic guide-wave.The supersonic guide-wave that reverses of reflection begins to propagate along the original reverse direction of propagating, reverse supersonic guide-wave through magnetostriction when reversing the position of ultrasonic probe 5 when reflection, reversed ultrasonic probe 5 by magnetostriction and detect and be converted to electric signal and be transferred to signal condition module 9 from probe cable 4, further be transferred to signal processing module 1.
Claims (5)
1. steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave, it is characterized in that: comprise signal processing module (1), embedded type control module (2), pulse amplification module (3), probe cable (4), ultrasonic probe (5) is reversed in magnetostriction, magnetostriction band (6), high-pressure gasbag (8), signal condition module (9), embedded display module (10), compressed air pump (11); Magnetostriction band (6) is wrapped in tested steel pipe (7) top layer, the top layer that ultrasonic probe (5) is wrapped in magnetostriction band (6) is reversed in magnetostriction, be wrapped in the top layer that ultrasonic probe (5) are reversed in magnetostriction with high-pressure gasbag (8), one end of probe cable (4) reverses ultrasonic probe (5) with magnetostriction and is connected, the other end of probe cable (4) is connected 9 with pulse amplification module (3) with the signal condition module respectively) be connected, signal condition module (9) successively with signal processing module (1) be connected display module (10) and be connected, embedded type control module (2) is connected with pulse amplification module (3).
2. a kind of steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave according to claim 1 is characterized in that: described embedded type control module (2) mainly is comprised of dsp chip tms320f28069 and Direct Digital frequency synthesis chip AD9833, integrated double operational ADA4896 and peripheral circuit thereof; Dsp chip tms320f28069 communicates by letter with AD9833 by the spi interface, and control AD9833 output pulse waveform, the output pulse waveform of AD9833 carry out one-level through ADA4896 and amplify, and are input to pulse amplification module (3).
3. a kind of steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave according to claim 1, it is characterized in that: described signal processing module (1) comprises dsp chip tms320f28069, an A/D converting member on the dsp chip tms320f28069 is the continuous analog signal conversion of signal condition module (9) output digital signal, signal is carried out digital average, the operation digital filtering algorithm obtains useful signal, and the signal of signal processing module (1) output is input to embedded display module (10) by USB interface.
4. a kind of steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave according to claim 1, it is characterized in that: described signal condition module (9) mainly is comprised of two parts, the amplifying circuit that first is comprised of operational amplifier, the differential bandpass filter that second portion is comprised of two Lt1994ims8, the signal of process filtering is input to signal processing module (1).
5. a kind of steel pipe nondestructive detection system that adopts magnetostriction to reverse supersonic guide-wave according to claim 1, it is characterized in that: described embedded display module (10) is comprised of ARM flush bonding processor AM3517AZERA and FLASH chip and two SDRAM chips and peripheral circuit, and load embedded Linux operating system, by carrying out application programming in embedded Linux operating system; Flush bonding processor AM3517AZERA is by the data of the USB interface read signal processing module output of the dsp chip tms320f28069 of USB interface from signal processing module (1), by the control of the LCD control module in the embedded display module (10) TFT LCDs, data are presented on the liquid crystal display again.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849353A (en) * | 2015-04-22 | 2015-08-19 | 杭州浙达精益机电技术股份有限公司 | Wave beam time-delay control-based helical weld pipe twisting guided wave detection method and device |
| CN105651859A (en) * | 2016-01-12 | 2016-06-08 | 杭州浙达精益机电技术股份有限公司 | Ultrasonic guided wave device and method for monitoring corrosion of pipeline |
| CN111380949A (en) * | 2020-03-27 | 2020-07-07 | 华中科技大学 | Method for detecting defects of external threads of steel pipe based on sleeve connection |
| CN115791972A (en) * | 2023-01-18 | 2023-03-14 | 河北铁达科技有限公司 | Steel structure column health state evaluation method, evaluation terminal and storage medium |
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| CN102474690A (en) * | 2009-07-03 | 2012-05-23 | 岭南大学校产学协力团 | Contact sh-guided-wave magnetostrictive transducer |
| CN202994736U (en) * | 2012-11-20 | 2013-06-12 | 杭州浙大精益机电技术工程有限公司 | Steel tube nondestructive testing (NDT) system using magnetostrictive torsion ultrasonic guided waves |
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2012
- 2012-11-20 CN CN201210476576.6A patent/CN102944611B/en active Active
Patent Citations (4)
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| CN201184875Y (en) * | 2007-10-11 | 2009-01-21 | 华中科技大学 | Apparatus for detecting magnetic conduction component defect base on magnetic deformation torsion wave |
| CN101173911A (en) * | 2007-10-17 | 2008-05-07 | 中国人民解放军海军工程大学 | Fast checking method for pipe defect and nondestructive testing apparatus |
| CN102474690A (en) * | 2009-07-03 | 2012-05-23 | 岭南大学校产学协力团 | Contact sh-guided-wave magnetostrictive transducer |
| CN202994736U (en) * | 2012-11-20 | 2013-06-12 | 杭州浙大精益机电技术工程有限公司 | Steel tube nondestructive testing (NDT) system using magnetostrictive torsion ultrasonic guided waves |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849353A (en) * | 2015-04-22 | 2015-08-19 | 杭州浙达精益机电技术股份有限公司 | Wave beam time-delay control-based helical weld pipe twisting guided wave detection method and device |
| CN105651859A (en) * | 2016-01-12 | 2016-06-08 | 杭州浙达精益机电技术股份有限公司 | Ultrasonic guided wave device and method for monitoring corrosion of pipeline |
| CN105651859B (en) * | 2016-01-12 | 2018-08-14 | 杭州浙达精益机电技术股份有限公司 | Pipe ultrasonic guided wave corrosion monitor and method |
| CN111380949A (en) * | 2020-03-27 | 2020-07-07 | 华中科技大学 | Method for detecting defects of external threads of steel pipe based on sleeve connection |
| CN115791972A (en) * | 2023-01-18 | 2023-03-14 | 河北铁达科技有限公司 | Steel structure column health state evaluation method, evaluation terminal and storage medium |
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Denomination of invention: A non-destructive testing system for steel pipes using magnetostrictive torsional ultrasonic guided waves Granted publication date: 20141231 Pledgee: Hangzhou branch of Bank of Nanjing Co.,Ltd. Pledgor: HANGZHOU ZHEDA JINGYI ELECTROMECHANICAL TECHNOLOGY Corp.,Ltd. Registration number: Y2024980012043 |