CN206601364U - Electromagnetic acoustic torsional wave fault detection system - Google Patents
Electromagnetic acoustic torsional wave fault detection system Download PDFInfo
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- CN206601364U CN206601364U CN201720274551.6U CN201720274551U CN206601364U CN 206601364 U CN206601364 U CN 206601364U CN 201720274551 U CN201720274551 U CN 201720274551U CN 206601364 U CN206601364 U CN 206601364U
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Abstract
The utility model is related to electromagnetic acoustic torsional wave fault detection system, including 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 echo-signal is amplified after filtering process by display screen and accurately shows signal waveform.The utility model 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
The utility model is related to the detection and identification to flaw echo during to zirconium pipe row Non-Destructive Testing, and in particular to one kind utilizes electricity
Magnetic ultrasound produces torsional wave to detect the production of zirconium pipe and the system of use state.
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 application 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 utility model provide a kind of effective and feasible electromagnetic acoustic and reverse wave inspection system
System, can effectively improve quality assurance and safety assurance of the zirconium pipe in production application, provide reliable when improving detection efficiency
Stable testing result.
To realize above-mentioned target, the utility model 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 on, 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 of the metal sleeve is more than the diameter of zirconium pipe.
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 on 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 utility model is produced using circumferential ring electric field in the magnetic field of oblique circular zirconium pipe
Vibration, excitement of torsional ripple.
It is of the present utility model to be advantageous in that：The utility model uses electromagnetic acoustic excitation ultrasound ripple, Ⅴ-permandur alloy
Transmitting and the reception of echo-signal that band is popped one's head in as high-voltage pulse in zirconium pipe as externally-applied magnetic field, torsional wave, preposition amplification
Device is responsible for the early stage amplification of echo-signal, and the signal transacting of supersonic detector is responsible for the amplification filtering of echo-signal, ultrasonic wave
The screen display detection data of defectoscope.Supersonic detector avoids dependence of the conventional Ultrasound for couplant, meanwhile, reverse
Ripple has obvious detectability for the slit flaw echo in zirconium pipe, and detection efficiency is high, and testing result is reliable and stable.
The utility model is simple to operate, reliable and stable, realizes the real-time high-efficiency detection to zirconium pipe, considerably increases industry
Production and the security of application.
Brief description of the drawings
Fig. 1 is the connected mode schematic diagram in the utility model example.
Fig. 2 is the excitation unit schematic diagram in the utility model example.
Fig. 3 is that the utility model is detected without flaw echo zirconium pipe body portion ultrasonic wave original echo oscillogram.
Fig. 4 is that the utility model detection has flaw echo zirconium pipe body portion ultrasonic wave original echo oscillogram.
Embodiment
Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, electromagnetic acoustic torsional wave of the present utility model flaw detection instrument system include torsional wave probe, it is preposition
Amplifier 12, electromagnetic supersonic flaw detecting instrument 13；It is characterized in that：Torsional wave probe is connected with preamplifier 12, preamplifier
12 are connected with electromagnetic supersonic flaw detecting instrument 13；Torsional wave probe excitation ultrasound ripple simultaneously receives ultrasonic echo signal, is put by preceding
Big device 12 transmits a signal to electromagnetic supersonic flaw detecting instrument 13 after amplifying, electromagnetic supersonic flaw detecting instrument 13 is by display screen by signal waveform
Accurate display, the mode of the control excitement of torsional ripple of electromagnetic supersonic flaw detecting instrument 13 is simultaneously handled signal is received and recorded.It is preposition
Amplifier 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 on 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 of the metal sleeve 6 is more than the diameter of zirconium pipe.
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 on 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 (3)
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 on, 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.
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| CN201720274551.6U CN206601364U (en) | 2017-03-21 | 2017-03-21 | Electromagnetic acoustic torsional wave fault detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940345A (en) * | 2017-03-21 | 2017-07-11 | 武汉中科创新技术股份有限公司 | Electromagnetic acoustic torsional wave fault detection system and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940345A (en) * | 2017-03-21 | 2017-07-11 | 武汉中科创新技术股份有限公司 | Electromagnetic acoustic torsional wave fault detection system and detection method |
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