CN105510441A - Linkage detection method adopting multi-channel combined probes - Google Patents
Linkage detection method adopting multi-channel combined probes Download PDFInfo
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- CN105510441A CN105510441A CN201510970848.1A CN201510970848A CN105510441A CN 105510441 A CN105510441 A CN 105510441A CN 201510970848 A CN201510970848 A CN 201510970848A CN 105510441 A CN105510441 A CN 105510441A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
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- 239000007921 spray Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 3
- 230000003137 locomotive effect Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 3
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Classifications
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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
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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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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- 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
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
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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
- G01N2291/10—Number of transducers
- G01N2291/105—Number of transducers two or more emitters, two or more receivers
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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
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2696—Wheels, Gears, Bearings
Abstract
The invention relates to a linkage detection method adopting multi-channel combined probes. According to the method, for a left ultrasonic probe, a middle ultrasonic probe and a right ultrasonic probe, the middle probe is a phased array probe, the left probe and the right probe are conventional probes and are symmetrically distributed relative to the middle probe, probe beams slantly penetrate through an axle in different directions, accordingly, a detection area is located on a near-surface area on the other side of a wheel seat area relative to the middle probe in the radial direction, a center line of the middle probe beams is intersected with an axis of the axle, and left probe beams and right probe beams are symmetric relative to the middle probe beams; when the middle probe detects defect echoes, if one of two echoes, obtained by the left probe and the right probe, in the same area is higher than an echo of a groove and the other one is lower than the echo of the groove, the condition that the area is a crack is determined, if the two echoes, obtained by the left probe and the right probe, in the same area are lower than the echo of the groove and the amplitude heights are basically the same, the condition that the area is not a crack is determined. According to the linkage detection method adopting the multi-channel combined probes, pressing damage or natural crack can be distinguished, so that the omission ratio can be reduced, the detection rate is increased, and the circumferential quantitative precision is improved.
Description
Technical field
The present invention relates to a kind of method utilizing the interlock of multiple ultrasonic probe to carry out ultrasound examination.
Background technology
Locomotive axle is the important component part of rail locomotive, the weight of locomotive is finally all pressed on wheel shaft, when locomotive operation wheel shaft two ends (mainly finger wheel seat place) be subject to become shearing force easily crack, very harmful, in locomotive operation once off-axis will cause locomotive derailing cause major accident.Crack detection for wheel seat position realizes mainly through Ultrasonic Detection.The domestic Ultrasonic Detection for wheel seat crackle mainly contains two kinds at present, and a kind of is the conventional transducer (non-phased array probe, such as, single crystal probe or double crystal probe) adopting fixed angle, and another kind adopts single phased array probe.Because crackle is mainly circumferential crack, (namely crackle is positioned at the xsect of wheel shaft substantially, comprise circumference, radial direction and the crackle between circumference and radial direction), and press-fiting the impression also extension in hoop substantially, the echo of the two is similar, is difficult to tell press-fit impression or crackle according to echo, crackle has harmfulness, and press-fit impression and do not have, if be judged to crackle to press-fit impression, then cause undetected, if impression will be press-fited be judged to be crackle, then rejection rate will be caused to improve.
Summary of the invention
In order to overcome the above-mentioned defect under prior art, the object of the present invention is to provide a kind of Multichannel combination probe interlock detection method, the method can reduce loss, improve recall rate, improve circumferential quantitative accuracy, tell and press-fit damage or aging crack, thus significantly improve the confidence level of testing result.
Technical scheme of the present invention is:
A kind of Multichannel combination probe interlock detection method: checkout equipment used comprises ultrasonic phase array detection instrument and supporting wheel shaft carries positioning system with described ultrasonic phase array detection instrument, described wheel shaft conveying positioning system comprises wheel shaft and enters to take turns locating device, wheel shaft goes out to take turns thrust unit and enters to take turns for controlling described wheel shaft the conveying position control device that locating device and wheel shaft go out to take turns thrust unit action, described ultrasonic phase array detection instrument is connected with by signal cable and automatically detects scanner, described automatic detection scanner is provided with a left side, in, right three ultrasonic probes, middle probe is phased array probe, left, right probe is non-phased array probe, probe described in each is made to be positioned at the nearly wheel seat place of wheel shaft to be measured, left, right two probes are symmetrical relative to middle probe, the wave beam of popping one's head in described in each is oblique through wheel shaft from different directions, search coverage is made to be arranged in the radial nearly surf zone of opposite side gone up on the wheel seat region relative with described probe, the center line of wave beam that described middle probe is launched and the axes intersect of described wheel shaft, a described left side, the wave beam of right probe is symmetrical relative to the wave beam of described middle probe, when described middle probe detects flaw echo, if a described left side, right probe tip in the echo of the same area one higher than the echo of groove another lower than the echo of groove, then judge that this region is as crackle, if a described left side, two echoes of the same area that right probe obtains all lower than groove echo and wave amplitude height is substantially identical, then judge that this region is not crackle.
Further, when described middle probe detects flaw echo, if described left and right probe tip is in the echo of the same area, one higher than crackle judges upper threshold value, another judges lower threshold value lower than crackle, then judge that this region is as crackle, if two echoes of the same area that described left and right probe obtains are all between the impression echo bound preset, and the ratio of two echoes is interval between the impression echo ratio preset, then judge that this region is not crackle.
The detectable range of the wave beam of described middle probe is opposite side on the radial upper wheel seat region relative with described middle probe all near surf zones, described wheel seat region be comprise described wheel seat, wheel seat crop, wheel seat back porch and between the dustproof baffle ring support and wheel seat in wheel seat crop front knuckle at interior shaft part.
The angle of the wave beam of described left and right probe and the wave beam of described middle probe is all preferably 5-15 degree.
The frequency of operation of popping one's head in described in each is preferably 2.5MHz-5MHz.
Described middle probe preferably adopts one dimensional linear array to pop one's head in.
For aforementioned Multichannel combination probe interlock detection method described in any one, also comprise: order about described wheel shaft System of Rotating about Fixed Axis with the wheel shaft rotary drive mechanism of described checkout equipment, described in each, probe and described wheel shaft make relative circular movement to scan all surfaces in described wheel seat region.
Pop one's head in described in each and be fixedly mounted on above same organic glass voussoir respectively, the refraction angle of described organic glass voussoir can be 35-55 degree.
Described checkout equipment can also be provided with coupled water system, and described coupled water system comprises water pump, tank and circulating line.
Described Multichannel combination probe interlock detection method can adopt following steps:
(1) by with described wheel shaft wheel to by rail moving to detection position, described probe is placed in the corresponding probe placement position of described wheel shaft;
(2) start water spray coupling and wheel shaft System of Rotating about Fixed Axis, described probe does circumferential movement relative to described wheel shaft, makes to pop one's head in described in each to carry out Scanning Detction to described wheel seat in wheel shaft rotary course;
(3) the detection data of popping one's head in described in each pass to described ultrasonic phase array detector by cable, and described detection data are saved in described ultrasonic phase array detector;
(4) the data syn-chronization display while of detection in described ultrasonic phase array detector on computers, is carried out questionable signal analysis, is got rid of and press-fit impression, carries out mark report to the police to detection defect.
Beneficial effect of the present invention is:
The present invention with multiple probe simultaneously from different directions launching beam point to and converge to same search coverage, each probe all adopts internal loopback working method, by to the comprehensive analysis of multiple probe tip to the echo of same search coverage, realize detecting the more high-precision positioning and quantitative of same defect.This detection method adopts the conventional transducer of fixed angle or single phased array probe to detect under compensate for prior art time due to the limitation of angle between defect orientation and detection direction cause undetected, report by mistake or deficiency that accuracy of detection is low, also utilize left and right probe echo separately to achieve the object determining defect exact boundry.
Especially on the basis deeply probing into the irregular feature of crackle and the regular feature of groove in space, make full use of a described left side, right probe tip is to the otherness between the echo of same search coverage, achieve the effective differentiation to crackle or surface groove, both can not be undetected because of crackle being judged to be that surface groove causes by mistake, also can not because of surface groove to be judged to be that the rejection rate that crackle causes increases by mistake, significantly improve recall rate during ultrasonic inspection thus, reduce loss, rate of false alarm and wheel shaft scrappage, improve circumferential quantitative accuracy, increase substantially accuracy and the confidence level of testing result.
Wave beam due to described probe is through the search coverage that described wheel seat offside is pointed in wheel footpath, therefore, detects under the state that the method still can be arranged on wheel shaft wheel seat at wheel, reduces maintenance cost.
The present invention adopts the non-phased array probe of the right and left effectively can distinguish aging crack and the surface groove (or press-fiting impression) on nearly surface, in the middle of utilizing, phased array probe can determine the position (comprising border accurately) etc. of the degree of depth that crackle extends to depth direction and crackle more accurately, this technical scheme is compared and is adopted three phased array probes simultaneously, can drop into realize above-mentioned multipurpose with relatively low cost.
Accompanying drawing explanation
Fig. 1 be the present invention adopt three pop one's head in detect time each several part vertical structure schematic diagram;
Fig. 2 is the transversary schematic diagram of Fig. 1;
Fig. 3 is the perspective view of popping one's head in described in each in wheel seat circumferentially deploying plane.
Embodiment
See Fig. 1-3, the invention discloses a kind of Multichannel combination probe interlock detection method: checkout equipment used comprises ultrasonic phase array detection instrument and supporting wheel shaft carries positioning system with described ultrasonic phase array detection instrument, described wheel shaft conveying positioning system comprises wheel shaft and enters to take turns locating device, wheel shaft goes out to take turns thrust unit and enters to take turns for controlling described wheel shaft the conveying position control device that locating device and wheel shaft go out to take turns thrust unit action, described ultrasonic phase array detection instrument is connected with by signal cable and automatically detects scanner, described automatic detection scanner is provided with a left side, in, right three ultrasonic probes, middle probe is phased array probe, left, right probe is non-phased array probe, probe described in each is made to be positioned at nearly wheel seat 43 place of wheel shaft 4 to be measured, left, right two probes 2, 3 is symmetrical relative to middle probe 1, the wave beam of popping one's head in described in each is oblique through wheel shaft from different directions, search coverage is made to be arranged in the radial nearly surf zone of opposite side gone up on the wheel seat region relative with described probe, the center line crossing with the axis 42 of described wheel shaft (the two face formed can be called symmetrical plane) of the wave beam that described middle probe is launched, a described left side, the wave beam of right probe is relative to the wave beam symmetry (also can be considered as relatively described symmetrical plane symmetrical) of described middle probe, comprehensive each probe tip realizes the detection to same defect to the result that same search coverage detects.Each probe is internal loopback working method, when described middle probe detects flaw echo, if described left and right probe tip in the echo of the same area one higher than the echo of groove another lower than the echo of groove, then judge that this region is as crackle, if two echoes of the same area that described left and right probe obtains all lower than groove echo and wave amplitude height is substantially identical, then judge that this region is not crackle.
Further, the determination methods whether certain region being existed to crackle can be specially: when described middle probe detects flaw echo, if a described left side, right probe tip is in the echo of the same area, one higher than crackle judges upper threshold value, another judges lower threshold value lower than crackle, then judge that this region is as crackle, if a described left side, two echoes of the same area that right probe obtains are all between the impression echo bound preset, and the ratio of two echoes is interval between the impression echo ratio preset, then judge that this region is not crackle, may be surface groove or press-fit impression.
Described crackle judges upper threshold value, crackle judges lower threshold value, two end values in the impression echo upper limit, impression echo lower limit and described default impression echo ratio interval rule of thumb can be determined with reference to the echo of normal groove.Its objective is and utilize aging crack and groove (or press-fiting impression) due to the whether regular difference in border and difference in the otherness size shown on echo, when left and right sides echo echo apparently higher than normal groove, and another is when being starkly lower than the echo of normal groove, crackle can be judged to be, when left and right sides echo all lower than certain value (namely more weak) and the two difference less (i.e. the two substantially identical) time, can be judged to press-fit impression or groove.Usually, the impression echo upper limit is less than crackle and judges upper threshold value, the narrow interval that described default impression echo ratio interval is is intermediate value with 1.
Quantitatively detect by realizing defect location to the comprehensive analysis of multiple probe tip to same search coverage echo, to compensate under prior art due to cause undetected of the limitation of angle between defect orientation and detection direction or report by mistake, also making positioning and quantitative accuracy of detection significantly improve.
Because crackle is irregular, and be regular for the surface groove of simulating crack, when adopt detect the same area relative to two probes of described crackle or the symmetrical distribution of surface groove simultaneously time, for crackle, the echo wave amplitude of two probes is often one high and one low, and for surface groove, the echo wave amplitude of two probes is often all more weak and wave amplitude height is substantially identical.Owing to arranging two probes of symmetrical distribution, there is above-mentioned differentiation in the echo that crackle and surface groove are produced, make crackle or the resolution of surface groove are become easy, solve Ultrasonic Detection medium-term and long-term since the flase drop, the technical barrier such as undetected that exist.
In order to the launching beam realizing each probe points to the same search coverage in described wheel seat region from different directions, pop one's head in described in each and all need to be obliquely installed, wherein, the axis of described middle probe tilts to point to the inside of described wheel seat, and its wave beam launched tilts crossing with described axle axis.The axis of described left and right probe also tilts to point to the inside of described wheel seat separately, if described symmetrical plane is positioned at vertical, the projection of described left and right probe in the horizontal vertical plane (Fig. 3 place paper) of described symmetrical plane is arranged in the position at relatively described probe deflection certain angle (α angle as shown in Figure 3) separately.
The arrangement position of popping one's head in described in each (comprises the distance with Front distance and wheel seat, left, distance in the circumferential between right probe, and the respective setting angle etc. that leans forward of popping one's head in is associated) need to determine according to actual conditions, the detectable range of the launching beam of described middle probe is that opposite side on the radial upper wheel seat region relative with described middle probe is (if using the upside of the radial direction at place of popping one's head in as " side ", then " opposite side " refers to the downside in radial direction) whole nearly surf zone, described wheel seat region preferably comprises described wheel seat, wheel seat crop 44, wheel seat back porch 45 and between the dustproof baffle ring support 46 and wheel seat in wheel seat crop front knuckle 47 at interior shaft part.
The wave beam of described left and right probe is preferably 5-15 degree with the angle of the wave beam of described middle probe separately, and search coverage is the surface close to described wheel seat or described wheel seat region, makes the present invention be particularly useful for the detection of near surface flaw.Owing to adopting phased array probe, its search coverage can be deep into the heart portion in the radial direction of wheel seat region.
The frequency of operation of popping one's head in described in each is preferably 2.5MHz-5MHz.
Described middle probe preferably adopts one dimensional linear array to pop one's head in.
For preceding method, can also order about described wheel shaft System of Rotating about Fixed Axis in testing process with the wheel shaft rotary drive mechanism of described checkout equipment, described in each, probe and described wheel shaft make relative circular movement to scan all surfaces in described wheel seat region.Because middle probe adopts phased array probe, when popping one's head in wheel seat relative circular movement, when determining to there is crackle, the positioning and quantitative that the degree of depth etc. that can extend the centripetal portion of crackle radius vector further carries out degree of precision detects.
Described in each, probe can be fixedly mounted on above same organic glass voussoir respectively, and the refraction angle of described organic glass voussoir is 35-55 degree.The lower surface of described organic glass voussoir can be the indent cylinder fitted with axle body 41 surface of described wheel shaft.
Described Multichannel combination probe interlock detection method also comprises two the echoes acquisition defect borders comparatively accurately utilizing described left and right probe tip to the same area (particularly the two ends of defect).
According to ultrasonic reflections theorem, orientation, the size of the size of the energy that ultrasonic reflections is returned and the difference of interface both sides medium acoustic impedance and interface are relevant.The wave beam launched when probe levels off to vertical with crackle angle, and the projection of crackle in beam elevation direction is substantially constant, and the crackle detected will relatively real crack.When probe beam and crackle angle less, the projection of crackle in beam elevation direction is more less than crackle itself, the crackle then detected will be less than real crack, if crackle itself is little especially, so its projection can manifest out substantially, will cause like this and sentences light to the extent of injury of crackle or fail to judge.With the echo of multiple different directions, the present invention determines that the border of same defect can make up above-mentioned deficiency when single direction detects, compare the border only adopting the echo in a direction to obtain more accurate.
Described checkout equipment is also provided with coupled water system, and described coupled water system comprises water pump, tank and circulating line.For coupled water when described water pump is used for detecting to probe, water in tank is transported to nozzle place, water is ejected into the binding site of described wheel shaft and described probe, and described circulating line is used for the coupled water under trailing wheel axial flow after the detection through filtering to send back to tank for recycling.
Described wheel shaft enters to take turns locating device for the meeting trigger sensor when rail locomotive wheel advances to correct position, enters to take turns locating device and starts, fixed by wheel shaft; It is upon completion of the assays wheel shaft is released detection zone that described wheel shaft goes out to take turns thrust unit; Described wheel shaft rotary drive mechanism drives wheel shaft to rotate behind wheel shaft location, completes detection.Described wheel shaft rotary drive mechanism is a part for described wheel shaft conveying positioning system, not only for controlling, wheel shaft enters to take turns locating device action to described conveying position control device, wheel shaft goes out to take turns thrust unit action, the action of wheel shaft rotary drive mechanism, can also control the start and stop of the total start and stop of checkout equipment and water pump.
The detection signal output terminal of described middle probe connects the detection signal input end of described ultrasonic phase array detector by phased array cable, the detection signal output terminal of described left and right probe connects the detection signal input end of described ultrasonic phase array detector by the ultrasonic cable of conventional coaxial.
What store detection wheel seat position in described ultrasonic phase array detector arranges file.
Before adopting Multichannel combination of the present invention probe interlock detection method to detect, first carry out following preliminary work: be arranged in the probe tool of checkout equipment by three probes, the detection signal output terminal of described probe is connected the detection signal input end of ultrasonic phase array detector by cable; Wherein, left and right probe is arranged symmetrically with relative to middle probe, according to certain position relation arrangement between probe, and can simultaneously to the same search coverage launching beam of described wheel seat.
Can implement according to following steps during detection:
(1) by with described wheel shaft wheel to by rail moving to detection position, described probe is placed in the corresponding probe placement position of described wheel shaft;
(2) start water spray coupling and wheel shaft System of Rotating about Fixed Axis, described probe does circumferential movement relative to described wheel shaft, makes to pop one's head in described in each to carry out Scanning Detction to described wheel seat in wheel shaft rotary course;
(3) the detection data of popping one's head in described in each pass to described ultrasonic phase array detector by described cable, and described detection data are saved in described ultrasonic phase array detector;
(4) the data syn-chronization display while of detection in described ultrasonic phase array detector on computers, is carried out questionable signal analysis, is got rid of and press-fit impression, carries out mark report to the police to detection defect.
Claims (10)
1. a Multichannel combination probe interlock detection method, it is characterized in that checkout equipment used comprises ultrasonic phase array detection instrument and supporting wheel shaft carries positioning system with described ultrasonic phase array detection instrument, described wheel shaft conveying positioning system comprises wheel shaft and enters to take turns locating device, wheel shaft goes out to take turns thrust unit and enters to take turns for controlling described wheel shaft the conveying position control device that locating device and wheel shaft go out to take turns thrust unit action, described ultrasonic phase array detection instrument is connected with by signal cable and automatically detects scanner, described automatic detection scanner is provided with a left side, in, right three ultrasonic probes, middle probe is phased array probe, left, right probe is non-phased array probe, probe described in each is made to be positioned at the nearly wheel seat place of wheel shaft to be measured, left, right two probes are symmetrical relative to middle probe, the wave beam of popping one's head in described in each is oblique through wheel shaft from different directions, search coverage is made to be arranged in the radial nearly surf zone of opposite side gone up on the wheel seat region relative with described probe, the center line of wave beam that described middle probe is launched and the axes intersect of described wheel shaft, a described left side, the wave beam of right probe is symmetrical relative to the wave beam of described middle probe, when described middle probe detects flaw echo, if a described left side, right probe tip in the echo of the same area one higher than the echo of groove another lower than the echo of groove, then judge that this region is as crackle, if a described left side, two echoes of the same area that right probe obtains all lower than groove echo and wave amplitude height is substantially identical, then judge that this region is not crackle.
2. Multichannel combination probe interlock detection method as claimed in claim 1, it is characterized in that when described middle probe detects flaw echo, if described left and right probe tip is in the echo of the same area, one higher than crackle judges upper threshold value, another judges lower threshold value lower than crackle, then judge that this region is as crackle, if two echoes of the same area that described left and right probe obtains are all between the impression echo bound preset, and the ratio of two echoes is interval between the impression echo ratio preset, then judge that this region is not crackle.
3. Multichannel combination probe interlock detection method as claimed in claim 2, it is characterized in that the detectable range of the wave beam of described middle probe is opposite side on the radial upper wheel seat region relative with described middle probe all near surf zones, described wheel seat region be comprise described wheel seat, wheel seat crop, wheel seat back porch and between the dustproof baffle ring support and wheel seat in wheel seat crop front knuckle at interior shaft part.
4. Multichannel combination probe interlock detection method as claimed in claim 3, is characterized in that the angle of the wave beam of described left and right probe and the wave beam of described middle probe is 5-15 degree.
5. Multichannel combination probe interlock detection method as claimed in claim 4, is characterized in that the frequency of operation of popping one's head in described in each is 2.5MHz-5MHz.
6. Multichannel combination probe interlock detection method as claimed in claim 5, is characterized in that described middle probe is one dimensional linear array probe.
7. as the Multichannel combination probe interlock detection method in claim 1-6 as described in any one claim, it is characterized in that ordering about described wheel shaft System of Rotating about Fixed Axis with the wheel shaft rotary drive mechanism of described checkout equipment, described in each, probe and described wheel shaft make relative circular movement to scan all surfaces in described wheel seat region.
8. Multichannel combination probe interlock detection method as claimed in claim 7, it is characterized in that popping one's head in described in each is fixedly mounted on same organic glass voussoir respectively, and the refraction angle of described organic glass voussoir is 35-55 degree.
9. Multichannel combination probe interlock detection method as claimed in claim 7, it is characterized in that described checkout equipment is also provided with coupled water system, described coupled water system comprises water pump, tank and circulating line.
10. Multichannel combination probe interlock detection method as claimed in claim 7, is characterized in that adopting following steps:
(1) by with described wheel shaft wheel to by rail moving to detection position, described probe is placed in the corresponding probe placement position of described wheel shaft;
(2) start water spray coupling and wheel shaft System of Rotating about Fixed Axis, described probe does circumferential movement relative to described wheel shaft, makes to pop one's head in described in each to carry out Scanning Detction to described wheel seat in wheel shaft rotary course;
(3) the detection data of popping one's head in described in each pass to described ultrasonic phase array detector by cable, and described detection data are saved in described ultrasonic phase array detector;
(4) the data syn-chronization display while of detection in described ultrasonic phase array detector on computers, is carried out questionable signal analysis, is got rid of and press-fit impression, carries out mark report to the police to detection defect.
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| CN201510970848.1A CN105510441B (en) | 2015-12-22 | 2015-12-22 | Multichannel combination probe linkage detection method |
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| CN201510970848.1A CN105510441B (en) | 2015-12-22 | 2015-12-22 | Multichannel combination probe linkage detection method |
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| CN108562646A (en) * | 2018-04-23 | 2018-09-21 | 国网浙江省电力有限公司电力科学研究院 | GIS cable terminations epoxy bushing ultrasonic phase array detection device and detection method |
| CN111238425A (en) * | 2018-11-29 | 2020-06-05 | 宝山钢铁股份有限公司 | Method for detecting crack depth of V-shaped groove bottom of section steel roller |
| CN112083069A (en) * | 2020-09-11 | 2020-12-15 | 辽宁东科电力有限公司 | Single-channel piezoelectric transducer ultrasonic guided wave detection device and detection method |
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| CN112433000A (en) * | 2020-11-12 | 2021-03-02 | 中广核工程有限公司 | Method and device for determining bulge boundary of steel lining of containment vessel of nuclear power station |
| CN112433002A (en) * | 2020-11-25 | 2021-03-02 | 中广核工程有限公司 | Detection method and detection device for bulge of dome steel lining of containment vessel of nuclear power station |
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