CN106940345A - Electromagnetic acoustic torsional wave fault detection system and detection method - Google Patents
Electromagnetic acoustic torsional wave fault detection system and detection method Download PDFInfo
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- CN106940345A CN106940345A CN201710168435.0A CN201710168435A CN106940345A CN 106940345 A CN106940345 A CN 106940345A CN 201710168435 A CN201710168435 A CN 201710168435A CN 106940345 A CN106940345 A CN 106940345A
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- 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
- G01N29/04—Analysing solids
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- 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
- G01N29/24—Probes
- G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- Acoustics & Sound (AREA)
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention relates to electromagnetic acoustic torsional wave fault detection system and detection method, fault detection system includes torsional wave probe, preamplifier, electromagnetic supersonic flaw detecting instrument；It is characterized in that：Torsional wave probe is connected with preamplifier, and preamplifier is connected with electromagnetic supersonic flaw detecting instrument；Torsional wave probe excitation ultrasound ripple simultaneously receives ultrasonic echo signal, electromagnetic supersonic flaw detecting instrument is transmitted a signal to after preamplifier amplifies, electromagnetic supersonic flaw detecting instrument accurately shows signal waveform by display screen the mode of electromagnetic supersonic flaw detecting instrument control excitement of torsional ripple is simultaneously handled signal is received and recorded.Electromagnetic supersonic flaw detecting instrument is popped one's head in by torsional wave and excitement of torsional ripple and received come the echo-signal of body, and signal waveform is amplified after filtering process by display screen by echo-signal and accurately show.The present invention is simple to operate, reliable and stable, realizes the real-time high-efficiency detection to zirconium pipe, considerably increases industrial production and the security of application.
Description
Technical field
Detection and identification during the present invention relates to zirconium pipe row Non-Destructive Testing to flaw echo, and in particular to one kind is surpassed using electromagnetism
Sound produces torsional wave to detect the production of zirconium pipe and the system of use state and detection method.
Background technology
Zirconium is a kind of rare metal, with extremely strong corrosion resistance, high fusing point, superelevation intensity and hardness, quilt
It is widely used in space flight and aviation, military project, nuclear reaction, atomic energy field.From military project, zirconium can as high-quality steel deoxidation
The additive of desulfuration, while as the important combination of special alloy steel, its intensity of raising and hardness of meeting high degree are manufactures
The important raw and processed materials of panzer, tank, artillery etc..From nuclear energy and atomic energy, the thermal-neutron capture cross-section of zirconium is small to be had
Prominent nuclearity energy, is the development indispensable raw material of atomic energy industry.
Therefore, as the important source material as military project and nuclear industry, the Non-Destructive Testing for zirconium pipe is most important.And market
Upper conventional Guided waves equipment is generally with the guided wave signals vibrated perpendicular to conduction orientation, and the guided wave signals of this mode exist
When being detected to zirconium pipe due to Zirconium tube Geological Problems acoustic signals be lost in transmitting procedure it is larger, it is impossible to over long distances detect,
On the other hand, can be to conventional Ultrasound guided wave either ordinary electromagnetic ultrasound relative to the factor of nuclear industry zirconium pipe applied environment reclaimed water
Guided wave causes greatly interference and inconvenience, it is impossible to realize effective detection.And torsional wave then can very great Cheng for the detection of zirconium pipe
Above-mentioned inconvenience and influence are excluded on degree.So, the Non-Destructive Testing to zirconium pipe is a problem urgently to be resolved hurrily at present.
Torsional wave is as a kind of oblique guided wave modal around vibrations, relative to direction of vibration and the direction of propagation leading vertically
Ripple, when zirconium pipe is in and had in liquid medium environment, because torsional wave direction of vibration causes the influence by outside liquid smaller,
Transmit signal strong, transmission range is farther.
The content of the invention
In order to fill up the industrial vacancy to zirconium pipe Non-Destructive Testing, while overcoming common Non-Destructive Testing mode to be examined for zirconium pipe
Interference and influence that the unfavorable factor of survey is caused, the present invention provide a kind of effective and feasible electromagnetic acoustic torsional wave fault detection system and
Detection method, can effectively improve quality assurance and safety assurance of the zirconium pipe in production application, be carried when improving detection efficiency
For reliable and stable testing result.
To realize above-mentioned target, the present invention uses following technical scheme：
Electromagnetic acoustic torsional wave fault detection system, including torsional wave probe, preamplifier, electromagnetic supersonic flaw detecting instrument；It is special
Levy and be：Torsional wave probe is connected with preamplifier, and preamplifier is connected with electromagnetic supersonic flaw detecting instrument；Torsional wave probe swashs
Hair ultrasonic wave simultaneously receives ultrasonic echo signal, and electromagnetic supersonic flaw detecting instrument is transmitted a signal to after preamplifier amplifies,
Electromagnetic supersonic flaw detecting instrument accurately shown signal waveform by display screen, the mode of electromagnetic supersonic flaw detecting instrument control excitement of torsional ripple
And handled signal is received and recorded.
The torsional wave probe includes metal sleeve, Ⅴ-permandur alloy band, loop coil, loop sleeve, signal connector,
Ⅴ-permandur alloy band is looped around on metal sleeve, and loop coil plastic packaging is in plastic sleeve, and plastic sleeve, which is enclosed within, is surrounded with iron cobalt
Outside the metal sleeve of vanadium alloy band, loop coil two ends are connected with signal connector, signal connector and preposition amplification
Device is connected.Loop coil is as impulse ejection and signal receiver plastic packaging in plastic sleeve, and plastic sleeve plays protection and fixed
The effect of loop coil.Loop coil described in detection process passes through the Ⅴ-permandur alloy band for being fixed on metal sleeve.
The diameter with diameter greater than zirconium pipe of the metal sleeve.
Utilize the detection method of described electromagnetic acoustic torsional wave fault detection system, it is characterised in that carry out according to the following steps：
Metal sleeve around Ⅴ-permandur alloy band is enclosed within the pipe end of zirconium pipe to be checked, plastic packaging is had to the plastic sheath of loop coil afterwards
Jacket casing moves forward and backward loop coil/rotation loop coil, and adjust electromagnetic supersonic flaw detecting instrument transmitting pulse frequency on metal sleeve
Rate, when waveform reaches preferable mode and can be clearly apparent the termination ripple or flaw echo of the zirconium pipe other end with termination ripple while going out
Existing, the emitting voltage of adjustment electromagnetic supersonic flaw detecting instrument makes electromagnetic supersonic flaw detecting instrument sensitivity reach maximum；By echo waveform come
Determine whether flaw echo or flaw echo position, reach whether identification zirconium pipe has and hinder purpose.
The position algorithm that the zirconium pipe has wound is：Sound velocity calibration is carried out by sample pipe known to length, it is assumed that sample length of tube
For L, electromagnetic supersonic flaw detecting instrument shows that beginning ripple is T with termination ripple time domain difference value, obtains torsional wave velocity of sound V：V=2L/T
Similarly, it is known that torsional wave obtains flaw echo position in the zirconium pipe velocity of sound.
According to magnetostriction principle, the present invention is produced using circumferential ring electric field in the magnetic field of oblique circular zirconium pipe to shake
It is dynamic, excitement of torsional ripple.
The present invention's is advantageous in that：The present invention uses electromagnetic acoustic excitation ultrasound ripple, and Ⅴ-permandur alloy band is in zirconium pipe
The middle transmitting and the reception of echo-signal popped one's head in as externally-applied magnetic field, torsional wave as high-voltage pulse, preamplifier is responsible for back
The early stage amplification of ripple signal, the signal transacting of supersonic detector is responsible for the amplification filtering of echo-signal, supersonic detector
Screen display detects data.Supersonic detector avoids dependence of the conventional Ultrasound for couplant, meanwhile, torsional wave is for zirconium
Slit flaw echo in pipe has obvious detectability, and detection efficiency is high, and testing result is reliable and stable.
The present invention is simple to operate, reliable and stable, realizes the real-time high-efficiency detection to zirconium pipe, considerably increases industrial production
And the security of application.
Brief description of the drawings
Fig. 1 is the connected mode schematic diagram in present example.
Fig. 2 is the excitation unit schematic diagram in present example.
Fig. 3 is present invention detection without flaw echo zirconium pipe body portion ultrasonic wave original echo oscillogram.
Fig. 4 has flaw echo zirconium pipe body portion ultrasonic wave original echo oscillogram for present invention detection.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, electromagnetic acoustic torsional wave of the invention flaw detection instrument system includes torsional wave probe, preposition amplification
Device 12, electromagnetic supersonic flaw detecting instrument 13；It is characterized in that：Torsional wave probe is connected with preamplifier 12, preamplifier 12 and
Electromagnetic supersonic flaw detecting instrument 13 is connected；Torsional wave probe excitation ultrasound ripple simultaneously receives ultrasonic echo signal, by preamplifier
Electromagnetic supersonic flaw detecting instrument 13 is transmitted a signal to after 12 amplifications, electromagnetic supersonic flaw detecting instrument 13 is accurate by signal waveform by display screen
It has been shown that, the mode of the control excitement of torsional ripple of electromagnetic supersonic flaw detecting instrument 13 is simultaneously handled signal is received and recorded.Preposition amplification
Device 12, electromagnetic supersonic flaw detecting instrument 13 are existing structure.
The torsional wave probe includes metal sleeve 6, Ⅴ-permandur alloy band 5, loop coil 9, loop sleeve 8, signal and connected
Device 11 is connect, Ⅴ-permandur alloy band 5 is looped around composition excitation unit 7 on metal sleeve 6, and the plastic packaging of loop coil 9 is in plastic sleeve 8
Constitute probe apparatus 10, plastic sleeve 8 is enclosed within the outside of excitation unit 7, the two ends of loop coil 9 with the phase of signal connector 11
Even, signal connector 11 is connected with preamplifier 12.Loop coil 9 is as impulse ejection and signal receiver plastic packaging in plastics
In sleeve 8, plastic sleeve 8 plays protection and stationary annular coil 9.Loop coil 9 described in detection process is passed through
It is fixed on the Ⅴ-permandur alloy band 5 of metal sleeve 6.The diameter with diameter greater than zirconium pipe of the metal sleeve 6.
Utilize the detection method of described electromagnetic acoustic torsional wave fault detection system, it is characterised in that carry out according to the following steps：
Metal sleeve around Ⅴ-permandur alloy band is enclosed within the pipe end of zirconium pipe to be checked, plastic packaging is had to the plastic sheath of loop coil afterwards
Jacket casing moves forward and backward loop coil/rotation loop coil, and adjust electromagnetic supersonic flaw detecting instrument transmitting pulse frequency on metal sleeve
Rate, when waveform reaches preferable mode and can be clearly apparent the termination ripple or flaw echo of the zirconium pipe other end with termination ripple while going out
Existing, the emitting voltage of adjustment electromagnetic supersonic flaw detecting instrument makes electromagnetic supersonic flaw detecting instrument sensitivity reach maximum；By echo waveform come
Determine whether flaw echo or flaw echo position, reach whether identification zirconium pipe has and hinder purpose.
The position algorithm that the zirconium pipe has wound is：Sound velocity calibration is carried out by sample pipe known to length, it is assumed that sample length of tube
For L, electromagnetic supersonic flaw detecting instrument shows that beginning ripple is T with termination ripple time domain difference value, obtains torsional wave velocity of sound V：V=2L/T
Similarly, it is known that torsional wave obtains flaw echo position in the zirconium pipe velocity of sound.
Fig. 3 can see no flaw echo zirconium pipe body portion ultrasonic wave original echo waveform, and Y-axis is wave-shape amplitude, and X-axis is back
Wave sound journey, beginning ripple and termination ripple are can determine whether out by waveform, and part is then body waveform between beginning ripple and termination ripple, by Fig. 3
Waveform state may determine that zirconium pipe body without wound.
Fig. 4 can see the zirconium pipe body portion ultrasonic wave original echo waveform for carving wound, and Y-axis is wave-shape amplitude, and X-axis is back
Wave sound journey, beginning ripple and termination ripple are can determine whether out by waveform, and part is then body waveform between beginning ripple and termination ripple, passes through sound
Journey and wave amplitude may determine that zirconium pipe has and hinder and calculate flaw echo position.
Claims (5)
1. electromagnetic acoustic torsional wave fault detection system, including torsional wave probe, preamplifier, electromagnetic supersonic flaw detecting instrument；Its feature
It is：Torsional wave probe is connected with preamplifier, and preamplifier is connected with electromagnetic supersonic flaw detecting instrument；Torsional wave probe is excited
Ultrasonic wave simultaneously receives ultrasonic echo signal, and electromagnetic supersonic flaw detecting instrument is transmitted a signal to after preamplifier amplifies, electricity
Magnetic reflectoscope accurately shows signal waveform by display screen the mode of electromagnetic supersonic flaw detecting instrument control excitement of torsional ripple is simultaneously
Signal will be received to be handled and recorded.
2. electromagnetic acoustic torsional wave fault detection system according to claim 1, it is characterised in that：The torsional wave probe includes
Metal sleeve, Ⅴ-permandur alloy band, loop coil, loop sleeve, signal connector, Ⅴ-permandur alloy band are looped around metal sleeve
On, loop coil plastic packaging is in plastic sleeve, and plastic sleeve, which is enclosed within, to be surrounded with outside the metal sleeve of Ⅴ-permandur alloy band, annular
Coil two ends are connected with signal connector, and signal connector is connected with preamplifier.
3. electromagnetic acoustic torsional wave fault detection system according to claim 2, it is characterised in that：The diameter of the metal sleeve
More than the diameter of zirconium pipe.
4. utilize the detection method of the electromagnetic acoustic torsional wave fault detection system described in one of claim 1-3, it is characterised in that press
Following steps are carried out：Metal sleeve around Ⅴ-permandur alloy band is enclosed within the pipe end of zirconium pipe to be checked, plastic packaging is had into ring afterwards
The plastic sleeve of shape coil is enclosed within metal sleeve, moves forward and backward loop coil/rotation loop coil, while adjusting electromagnetic acoustic
Defectoscope launches pulse frequency, when waveform reaches preferable mode and can be clearly apparent the termination ripple or flaw echo of the zirconium pipe other end
Occur simultaneously with termination ripple, the emitting voltage of adjustment electromagnetic supersonic flaw detecting instrument makes electromagnetic supersonic flaw detecting instrument sensitivity reach maximum；
Flaw echo or flaw echo position are determined whether by echo waveform, reaches whether identification zirconium pipe has and hinders purpose.
5. utilize the detection method of the electromagnetic acoustic torsional wave fault detection system described in claim 4, it is characterised in that：The zirconium pipe
The position algorithm for having wound is：Sound velocity calibration is carried out by sample pipe known to length, it is assumed that sample length of tube is L, electromagnetic supersonic flaw detecting
Instrument shows that beginning ripple is T with termination ripple time domain difference value, obtains torsional wave velocity of sound V：V=2L/T
Similarly, it is known that torsional wave obtains flaw echo position in the zirconium pipe velocity of sound.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168435.0A CN106940345A (en) | 2017-03-21 | 2017-03-21 | Electromagnetic acoustic torsional wave fault detection system and detection method |
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| CN201710168435.0A CN106940345A (en) | 2017-03-21 | 2017-03-21 | Electromagnetic acoustic torsional wave fault detection system and detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508089A (en) * | 2018-04-13 | 2018-09-07 | 沈阳工业大学 | Electromagnetic supersonic flaw detecting transducer architecture is detected outside circular pipe |
| CN108692683A (en) * | 2018-04-13 | 2018-10-23 | 沈阳工业大学 | Electromagnetic ultrasonic thickness measuring transducer architecture is detected outside circular pipe |
| CN109374733A (en) * | 2018-09-14 | 2019-02-22 | 哈尔滨理工大学 | A kind of electromagnetic ultrasonic Lamb wave fault detection system and detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606713A (en) * | 2016-03-01 | 2016-05-25 | 武汉中科创新技术股份有限公司 | Electromagnetic ultrasonic detection probe for zirconium pipe rod |
| CN205484217U (en) * | 2016-03-01 | 2016-08-17 | 武汉中科创新技术股份有限公司 | Zirconium tube stick electromagnetic acoustic test probe |
| CN206601364U (en) * | 2017-03-21 | 2017-10-31 | 武汉中科创新技术股份有限公司 | Electromagnetic acoustic torsional wave fault detection system |
-
2017
- 2017-03-21 CN CN201710168435.0A patent/CN106940345A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606713A (en) * | 2016-03-01 | 2016-05-25 | 武汉中科创新技术股份有限公司 | Electromagnetic ultrasonic detection probe for zirconium pipe rod |
| CN205484217U (en) * | 2016-03-01 | 2016-08-17 | 武汉中科创新技术股份有限公司 | Zirconium tube stick electromagnetic acoustic test probe |
| CN206601364U (en) * | 2017-03-21 | 2017-10-31 | 武汉中科创新技术股份有限公司 | Electromagnetic acoustic torsional wave fault detection system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508089A (en) * | 2018-04-13 | 2018-09-07 | 沈阳工业大学 | Electromagnetic supersonic flaw detecting transducer architecture is detected outside circular pipe |
| CN108692683A (en) * | 2018-04-13 | 2018-10-23 | 沈阳工业大学 | Electromagnetic ultrasonic thickness measuring transducer architecture is detected outside circular pipe |
| CN109374733A (en) * | 2018-09-14 | 2019-02-22 | 哈尔滨理工大学 | A kind of electromagnetic ultrasonic Lamb wave fault detection system and detection method |
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Application publication date: 20170711 |
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