GB2592770A - Sluice gate testing apparatus and testing method based on phased array ultrasonic flaw detector - Google Patents
Sluice gate testing apparatus and testing method based on phased array ultrasonic flaw detector Download PDFInfo
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- GB2592770A GB2592770A GB2105078.6A GB202105078A GB2592770A GB 2592770 A GB2592770 A GB 2592770A GB 202105078 A GB202105078 A GB 202105078A GB 2592770 A GB2592770 A GB 2592770A
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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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/262—Arrangements for orientation or scanning by relative movement of the head and the sensor by electronic orientation or focusing, e.g. with phased arrays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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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
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- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Disclosed in the present invention are a sluice gate testing apparatus and a testing method based on a phased array ultrasonic flaw detector. The testing apparatus comprises a testing mechanism, the testing mechanism comprising a support frame. A guide wheel and two drive wheels are provided on the bottom of the support frame, the drive wheels being driven by means of a first electric motor, and a controller and a phased array ultrasonic flaw detector are provided on the support frame. During the testing process, a second electric motor drives a rotating platform to rotate, driving a rotating arm to rotate in an upper region of a fan-shaped through hole; simultaneously, a third electric motor drives a leadscrew to rotate, driving a sliding block and an ultrasonic phased array matrix probe to move along the leadscrew in the length direction; that is, while the ultrasonic phased array matrix probe moves in the width direction of a sluice gate, the probe also sweeps at a certain angle, and is thus able to perform testing on a large area of the sluice gate simultaneously; and a testing signal from the ultrasonic phased array flaw detector is passed to the controller. The present invention uses phased array ultrasonic technology, and features high testing efficiency and high testing accuracy.
Description
ULTRASONIC PHASED ARRAY FLAW DETECTOR-BASED GATE DETECTION
APPARATUS AND DETECTION METHOD
Technical Field
The present invention relates to the field of gate detection technology, in particular, ultrasonic phased array flaw detector-based gate detection apparatus and a detection method.
Background
Gate leakage is a relatively common phenomenon in hydraulic structures. Leakage occurs in almost all gates, ranging from water gates for large reservoirs and rivers to sluice gates for small reservoirs and culverts. As a result, it is generally believed that "all gates leak", and thus people used to the gate leakage without paying sufficient attention. However, the damages and losses caused by gate leakage are far greater than most people realize, and even threaten the safety of hydraulic structures and flood control.
At present, the detection of gate leakage is still implemented by the traditional method, which combines patrol inspection with gate appearance inspection. By this method, the cause of gate leakage can basically be found, but it still has many drawbacks. For example, leakage in a water stop device located underwater is difficult to be detected, let alone the seriousness and the specific position of the leakage. And when the water leakage is found by inspectors, it is usually the case that water leakage is very serious, the water stop device is unable to stop water due to damage and have to be replaced. As a result, an extremely negative impact would be brought to the normal operation of the gate. Moreover, water leakage in a ship lock would affect the filling and discharging time of the lock chamber, prolongs the navigation time, and reduces the navigation efficiency. When the water leakage is serious and needs repair, the navigation has to be suspended for major repairs, which would affect the normal navigation and cause great economic losses.
For the problems above, a variety of detection apparatuses, for example, radiographic flaw detection and magnetic particle flaw detection, are provided. But radiographic flaw detection may cause harm to the human body while magnetic particle flaw detection and ultrasonic flaw detection are inefficient and produce pollution. In addition, the existing detection apparatuses have only one detection probe and are therefore unable to achieve high detection efficiency or accuracy.
Summary
Objective: For the problems above, the main purpose of the present invention is to provide an ultrasonic phased array flaw detector-based gate detection apparatus and a detection method to solve the technical problems of low detection efficiency and low detection accuracy of the existing gate detection apparatus due to the only one detection probe.
Technical solution: To solve the technical problems above, the technical solution used in the present invention is as follows.
An ultrasonic phased array flaw detector-based gate detection apparatus includes an upper computer and a detection mechanism The detection mechanism includes a support, a guide wheel and two driving wheels fixed at the bottom of the support. The driving wheels are driven by a first motor, and a controller and an ultrasonic phased array flaw detector are fixed on the support.
A rotating platform is provided on the support, the rotating platform is driven by a second motor. A lead screw is provided on the rotating platform in a horizontal direction and this lead screw is driven by a third motor. A slider is sleeved on the lead screw, and the slider is threadedly connected to the lead screw. An ultrasonic phased array matrix probe is fixed on the slider, and the matrix probe is connected to the ultrasonic phased array flaw detector by means of a wire. Two ultrasonic sensors are perpendicularly mounted on the support. One of the ultrasonic sensors is configured to measure a distance from the detection apparatus to the side edge of a gate, and the other is configured to measure a distance from the detection apparatus to the bottom of the gate. The firs motor, the second motor, the third motor, the two ultrasonic sensors, and the ultrasonic phased array flaw detector are connected to the controller by means of wires. The controller and the upper computer are connected to each other by means of a cable and are in serial communication. And waterproof treatment is carried out on the detection apparatus.
The phased array is a phase compensation or delay compensation) matrix, which can be used for both receiving and transmitting. The working principle of the phased array is to properly apply phase shift (or delay) to signals of basic array elements arranged according to a certain rule to obtain the deflection of an array beam, then to perform phase (or delay) compensation at the same time in different azimuths and finally to obtain a multibeam. The ultrasonic phased array is a combination of ultrasonic probe wafers. Some piezoelectric wafers are arranged in a certain distribution, and individual wafer is excited successively according to the predetermined delay time. Ultrasonic waves emitted by all the wafers form an integral wavefront, so that the shape and direction of emitted ultrasonic beams (wavefront) can be effectively controlled, and the scanning, deflection, and focusing of the ultrasonic beams can be achieved. The ultrasonic phased array can provide greater capabilities in determining discontinuous shapes, sizes, and directions than single or multiple probe devices.
The detection apparatus utilizes an ultrasonic phased array technology; and has high detection efficiency and high detection accuracy.
By further improvement, a fan-shaped through hole is provided on the support. A base of the rotating platform is connected to an output shaft of the second motor by means of a coupling and the rotating platform is rotatably connected to the support by means of a bearing. The second motor drives the rotating platform to rotate, to drive the lead screw to rotate together. The lead screw is located above the fan-shaped through hole, and the ultrasonic phased array matrix probe is located in the fan-shaped through hole.
By further improvement, edges of two arc sides of the fan-shaped through hole are each provided with an arc slide groove. Both ends of the lead screw are rotatably connected to the rotating arm by means of bearings while the rotating arm is fixed on the rotating platform. Two rollers are provided on the rotating arm and they are movably arranged in corresponding slide grooves, respectively, to improve the rotation stability of the rotating arm By further improvement, both ends of each arc slide groove and both ends of the rotating arm are provided with limiting switches, and the limiting switches are electrically connected to the controller to prevent the slider and the rotating arm from colliding and affecting the detection result.
By further improvement, a slide rod is provided on the rotating arm and this slide rod is parallel to the lead screw. A through hole is provided on the slider, and the slider is movably sleeved on the slide rod by means of the through hole, to improve the structural stability and prevent the slider from deflecting during moving along the lead screw and affecting the detection accuracy.
By further improvement, the detection apparatus further includes a cleaning mechanism, where the cleaning mechanism comprises a shovel plate and a brush component. The shovel plate is provided in the front end of the support in an inclined manner and is configured to remove sludge and mosses on the gate. This cleaning mechanism is used to eliminate the influence of sludge and moss on the detection results.
The brush component comprises a fourth motor, a rotary shaft, a rotary disc, and a brush. The fourth motor is fixed on the support; an output shaft of the fourth motor is connected to the rotary shaft by means of a coupling. The other end of the rotary shaft is fixedly connected to the rotary disc and the brush is connected to the rotary disc. The controller controls the fourth motor to drive the rotary disc to rotate, so as to enable the brush to rotate along with the rotary disc to brush the gate surface.
By further improvement, the shovel plate is hinged to the support. The upper surface of the shovel plate is connected to one end of one spring, and the lower surface of the shovel plate is connected to one end of another spring. The other ends of two springs are connected to the support. The springs are in a stretched state to achieve a buffer function.
By further improvement, the driving wheels are driven by means of a worm gear which comprises a worm and a gear. The worm gear is mounted in a housing and the housing is fixed at the bottom of the support. The output shaft of the first motor is connected to the worm by means of a coupling, and both ends of the rotating shaft of the gear extend out of the housing and are then connected to corresponding driving wheels The worm gear assembly operates stably and produces low noise A detection method used in the ultrasonic phased array flaw detector-based gate detection apparatus comprises the following steps: Step 1, placing the gate detection apparatus at a vertex of the upper end of a gate to be detected, measuring a distance from the apparatus to the other side of the gate and a distance from the apparatus to the bottom of the gate by means of the two ultrasonic sensors, to obtain the size of the entire gate, sending the information to the controller. Establishing, by a calculation module in the controller, a rectangular coordinate system by using the vertex as a coordinate origin, a width direction of the gate as an X-axis, and a height direction of the gate as a Y-axis; Step 2, planning, by the calculation module in the controller, a detection movement route of the detection apparatus, and controlling the apparatus to move up gradually along the height direction of the gate according to a set route to perform detection. During detection, driving, by the second motor, the rotating platform to rotate, to drive the rotating arm to rotate in an area above the fan-shaped through hole. At the same time, driving, by the third motor, the lead screw to rotate, to drive the slider and the ultrasonic phased array matrix probe to move along the length direction of the lead screw. That is, scanning, by the ultrasonic phased array matrix probe, within a certain angle while moving along the width direction of the gate, and simultaneously performing detection on the gate in a large area; and transmitting, by the ultrasonic phased array flaw detector, a detection signal to the controller. Obtaining, by the controller according to data currently measured by the two ultrasonic sensors, a specific position of the detection apparatus, i.e., a specific position of a flaw, and transmitting flaw information and flaw position information to the upper computer.
Compared with the existing detection apparatuses and detection methods, this solution has the following beneficial effects: During detection, a second motor drives a rotating platform to rotate, to drive a rotating arm to rotate in an area above a fan-shaped through hole; at the same time, a third motor drives a lead screw to rotate, to drive a slider and an ultrasonic phased array matrix probe to move along a length direction of the lead screw. That is, the ultrasonic phased array matrix probe scans within a certain angle while moving along a width direction of a gate and can simultaneously perform detection on the gate in a large area. The ultrasonic phased array flaw detector transmits a detection signal to a controller. The controller obtains, according to data instantly measured by the two ultrasonic sensors, a specific position of the detection apparatus, i.e., the specific position of a flaw, and transmits flaw information and flaw position information to the upper computer. The detection apparatus utilizes an ultrasonic phased array technology and has high detection efficiency and high detection accuracy.
Brief Description of the Drawings
Fig. 1 is a schematic structural diagram of the present gate detection apparatus according to embodiment 1 Fig. 2 is a top view of the present gate detection apparatus according to embodiment 1.
In the drawings: 1-support, 2-guide wheel, 3-first motor, 4-second motor, 5-rotating platform, 6-driving wheel, 7-third motor, 8-ultrasonic phased array flaw detector, 9-rotating arm, 10-lead screw, 11-slider, 12-shovel plate, 13-spring, 14-fourth motor, 15-rotary shaft, 16-brush, 17-ultrasonic sensor, 18-slide rod, 19-slide groove
Detailed Description
The present invention is further descried blow in conjunction with embodiments.
Embodiment 1: As shown in Figs 1 and 2, an ultrasonic phased array flaw detector-based gate detection apparatus includes an upper computer (not shown) and a detection mechanism. The detection mechanism comprises a support 1, a guide wheel 2 and two driving wheels 6 fixed at the bottom of the support. The driving wheels 6 are driven by a first motor 3, and a controller (not shown) and an ultrasonic phased array flaw detector 8 are fixed on the support 1.
A rotating platform 5 is provided on the support 1, and the rotating platform 5 is driven by a second motor 4 and can rotate around its central axis. A lead screw 10 is provided on the rotating platform 5 in a horizontal direction and this lead screw 10 is driven by a third motor 7. A slider 11 is sleeved on the lead screw 10, and the slider 11 is threadedly connected to the lead screw 10. An ultrasonic phased array matrix probe is fixed on the slider 11, and the matrix probe is connected to the ultrasonic phased array flaw detector 8 by means of a wire. Two ultrasonic sensors 17 are perpendicularly mounted on the support 1. One of the ultrasonic sensors is configured to measure a distance from the detection apparatus to the side edge of a gate, and the other is configured to measure a distance from the detection apparatus to the bottom of the gate. The firs motor 3, the second motor 4, the third motor 7, the two ultrasonic sensors 17, and the ultrasonic phased array flaw detector 8 are connected to the controller by means of wires. The controller and the upper computer are connected to each other by means of a cable and are in serial communication. And waterproof treatment is carried out on the detection apparatus.
A phased array is a phase compensation (or delay compensation) matrix, which can be used for both receiving and transmitting. The working principle of the phased array is to properly apply phase shift (or delay) to signals of basic array elements arranged according to a certain rule to obtain the deflection of an array beam, then to perform phase (or delay) compensation at the same time in different azimuths to obtain multibeam. The ultrasonic phased array is a combination of ultrasonic probe wafers. Some piezoelectric wafers are arranged in a certain regular distribution, and individual wafer is excited successively according to the predetermined delay time. Ultrasonic waves emitted by all the wafers form an integral wavefront, so that the shape and direction of emitted ultrasonic beams (wavefront) can be effectively controlled, and the scanning, deflection, and focusing of the ultrasonic beams can be achieved. The ultrasonic phased array can provide greater capabilities in determining discontinuous shapes, sizes, and directions than single or multiple probe devices.
The detection apparatus uses an ultrasonic phased array technology and has high detection efficiency and high detection accuracy.
In this embodiment, the detection apparatus further includes a cleaning mechanism, which comprises a shovel plate 12 and a brush component. The shovel plate 12 is provided in the front of the support 1 in an inclined manner and is configured to remove sludge and mosses on the gate This mechanism is used to eliminate the influence of sludge and moss on the detection results The brush component comprises a fourth motor 14, a rotary shaft 15, a rotary disc, and a brush 16. The fourth motor 14 is fixed on the support 1 and the output shaft of the fourth motor 14 is connected to the rotary shaft 15 by means of a coupling. The other end of the rotary shaft 15 is fixedly connected to the rotary disc and the brush is connected to the rotary disc. The controller controls the fourth motor 14 to drive the rotary disc to rotate, so as to enable the brush to rotate along with the rotary disc to brush the gate surface.
In this embodiment, the shovel plate 12 is hinged to the support 1. The upper surface of the shovel plate is connected to one end of a spring 13, and a lower surface of the shovel plate is connected to one end of another spring 13. The other ends of both springs are connected to the support. The springs are in a stretched state to achieve a buffer function.
In this embodiment, the driving wheels 6 are driven by means of a worm gear which comprises a worm and a gear. The worm gear is mounted in a housing and the housing is fixed at the bottom of the support. The output shaft of the first motor 3 is connected to the worm by means of a coupling, and both ends of the rotating shaft of the gear extend out of the housing and are then connected to corresponding driving wheels.
In this embodiment, as shown in Fig. 2, a fan-shaped through hole is provided on the support 1; a base of the rotating platform 5 is connected to the output shaft of the second motor 4 by means of a coupling and the rotating platform 5 is rotatably connected to the support 1 by means of a bearing. The second motor 4 drives the rotating platform 5 to rotate, driving the lead screw 10 to rotate together. The lead screw 10 is located above the fan-shaped through hole, and the ultrasonic phased array matrix probe is located in the fan-shaped through hole.
In this embodiment, the edges of two arc sides of the fan-shaped through hole are each provided with an arc slide groove 19. Both ends of the lead screw 10 are rotatably connected to the rotating arm 9 by means of bearings while the rotating arm 9 is fixed on the rotating platform. Two rollers are provided on the rotating arm 9 and they are movably arranged in corresponding slide grooves 19, respectively, to improve the rotation stability of the rotating arm In this embodiment, both ends of each arc slide groove and both ends of the rotating arm are provided with limiting switches (not shown), and the limiting switches are electrically connected to the controller to prevent the slider and the rotating arm from colliding and affecting the detection result.
In this embodiment, a slide rod 18 is provided on the rotating arm and this slide rod 18 is parallel to the lead screw 10. A through hole is provided on the slider and the slider is movably sleeved on the slide rod by means of the through hole Embodiment 2: A detection method used in the ultrasonic phased array flaw detector-based gate detection apparatus comprises the following steps: Step 1, the detection apparatus is placed at a vertex of the upper end of a gate to be detected, the distance from the apparatus to the other side of the gate and the distance from the apparatus to the bottom of the gate are measured by means of the two ultrasonic sensors 17. This leads to obtaining the size of the entire gate and then the information is sent to a controller. A calculation module in the controller establishes a rectangular coordinate system by using the vertex as a coordinate origin, a width direction of the gate as an X-axis, and a height direction of the gate as a Y-axis.
Step 2, the calculation module in the controller plans a detection movement route of the detection apparatus and controls the apparatus to move up gradually along the height direction of the gate according to a set route to perform detection. During detection, the second motor drives the rotating platform to rotate, to drive the rotating arm to rotate in an area above the fan-shaped through hole. At the same time, the third motor drives the lead screw to rotate, to drive the slider and the ultrasonic phased array matrix probe to move along the length direction of the lead screw. That is, the ultrasonic phased array matrix probe scans within a certain angle while moving along the width direction of the gate and can simultaneously perform detection on the gate in a large area. The ultrasonic phased array flaw detector transmits a detection signal to the controller, the controller obtains, according to data currently measured by the two ultrasonic sensors, a specific position of the detection apparatus, i.e., a specific position of a flaw, and transmits flaw information and flaw position information to the upper computer.
The terms based on the orientation or positional relationships showing in the drawings should be understood as "central", "longitudinal", "transversal", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. It is more convenient to describe the present invention and to simplify the description, instead of indicating or implying the devices or elements with the specific orientations, structure and operation, which cannot define a limitation of protection of the present invention.
The above are only preferred embodiments of the present invention. It should be noted that many modifications and variations can be made thereto by a technician in the field without departing from the technical principle of the present invention, and those modifications and variations should also fall within the scope of protection of the present invention.
Claims (10)
- CLAINIS: 1. An ultrasonic phased array flaw detector-based gate detection apparatus, comprising a support, wherein: a guide wheel and driving wheels are provided at the bottom of the support, the driving wheels are driven by a first motor, and a controller and an ultrasonic phased array flaw detector are provided on the support; a rotating platform is provided on the support, the rotating platform is driven by a second motor, a lead screw is provided on the rotating platform in a horizontal direction, the lead screw is driven by a third motor, a slider is sleeved on the lead screw, and the slider is threadedly connected to the lead screw; an ultrasonic phased array matrix probe is fixed on the slider, and the matrix probe is in signal connection with the ultrasonic phased array flaw detector; two ultrasonic sensors are perpendicularly mounted on the support, one of the ultrasonic sensors is configured to measure a distance from the detection apparatus to the side edge of a gate, and the other is configured to measure a distance from the detection apparatus to the bottom of the gate; and the firs motor, the second motor, the third motor, the two ultrasonic sensors, and the ultrasonic phased array flaw detector are all in signal connection with the controller.
- 2. The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 1, wherein: a fan-shaped through hole is provided on the support, a base of the rotating platform is connected to an output shaft of the second motor by means of a coupling, and the rotating platform is rotatably connected to the support by means of a bearing; and the second motor drives the rotating platform to rotate, to drive the lead screw to rotate together, the lead screw is located above the fan-shaped through hole, and the ultrasonic phased array matrix probe is located in the fan-shaped through hole
- 3. The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 2, wherein edges of two arc sides of the fan-shaped through hole are each provided with an arc slide groove, both ends of the lead screw are rotatably connected to the rotating arm by means of bearings while the rotating arm is fixed on the rotating platform, and two rollers are provided on the rotating arm and are movably arranged in corresponding slide grooves, respectively.
- 4 The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 3, wherein limiting switches are provided on both ends of each arc slide groove and both ends of the rotating arm, and the limiting switches are in signal connection with the controller.
- 5. The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 3, wherein a slide rod is provided on the rotating arm, the slide rod is parallel to the lead screw, a through hole is provided on the slider, and the slider is movably sleeved on the slide rod by means of the through hole.
- 6. The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 1, further comprising a cleaning mechanism, wherein: the cleaning mechanism comprises a shovel plate and a brush component, the shovel plate is provided at the front end of the support in an inclined manner and is configured to remove sludge and mosses on the gate; and the brush component comprises a fourth motor, a rotary shaft, a rotary disc, and a brush, the fourth motor is fixed on the support, an output shaft of the fourth motor is connected to the rotary shaft by means of a coupling, the other end of the rotary shaft is fixedly connected to the rotary disc, and the brush is connected to the rotary disc.
- 7. The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 1, wherein the shovel plate is hinged to the support, an upper surface of the shovel plate is connected to one end of one spring, the lower surface of the shovel plate is connected to one end of another spring, and the other ends of the two springs are connected to the support.
- 8 The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 1, further comprising an upper computer, wherein the controller and the upper computer are connected to each other by means of a cable and are in serial communication.
- 9. The ultrasonic phased array flaw detector-based gate detection apparatus according to claim 1, wherein: the driving wheels are driven by means of a worm gear which comprises a worm and a gear, the worm gear is mounted in a housing, and the housing is fixed at the bottom of the support; and the output shaft of the first motor is connected to the worm by means of a coupling, and both ends of the rotating shaft of the gear extend out of the housing and are connected to corresponding driving wheels.
- 10. A method used in the ultrasonic phased array flaw detector-based gate detection apparatus according to any one of claims 1-9, comprising: placing the gate detection apparatus at a vertex of an upper end of a gate to be detected, measuring a distance from the apparatus to the other end of the gate and a distance from the apparatus to the bottom of the gate by means of the two ultrasonic sensors to obtain the size of the entire gate, sending obtained size information to the controller, and establishing, by a calculation module in the controller, a rectangular coordinate system by using the vertex as a coordinate origin, a width direction of the gate as an X-axis, and a height direction of the gate as a Y-axis; planning, by the calculation module in the controller, a detection movement route of the detection apparatus, and controlling the apparatus to move up gradually along the height direction of the gate according to a set route to perform detection; during the detection, driving, by the second motor, the rotating platform to rotate, to drive the rotating arm to rotate in an area above the fan-shaped through hole; at the same time, driving, by the third motor, the lead screw to rotate, to drive the slider and the ultrasonic phased array matrix probe to move along the length direction of the lead screw; scanning, by the ultrasonic phased array matrix probe, within a certain angle while moving along the width direction of the gate, and simultaneously performing detection on the gate in a large area; and transmitting, by the ultrasonic phased array flaw detector, a detection signal to the controller, obtaining, by the controller according to data currently measured by the two ultrasonic sensors, a specific position of the detection apparatus, i.e., a specific position of a flaw, and transmitting flaw information and flaw position information to the upper computer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172523.9A CN109324121B (en) | 2018-10-09 | 2018-10-09 | Gate detection device and detection method based on phased array ultrasonic flaw detector |
| PCT/CN2018/114766 WO2020073406A1 (en) | 2018-10-09 | 2018-11-09 | Sluice gate testing apparatus and testing method based on phased array ultrasonic flaw detector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202105078D0 GB202105078D0 (en) | 2021-05-26 |
| GB2592770A true GB2592770A (en) | 2021-09-08 |
| GB2592770B GB2592770B (en) | 2022-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2105078.6A Active GB2592770B (en) | 2018-10-09 | 2018-11-09 | Ultrasonic phased array flaw detector-based gate inspection apparatus and inspection method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109324121B (en) |
| GB (1) | GB2592770B (en) |
| WO (1) | WO2020073406A1 (en) |
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Also Published As
| Publication number | Publication date |
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| GB2592770B (en) | 2022-08-10 |
| CN109324121A (en) | 2019-02-12 |
| GB202105078D0 (en) | 2021-05-26 |
| CN109324121B (en) | 2020-07-17 |
| WO2020073406A1 (en) | 2020-04-16 |
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