CN106441710A - Portable ultrasonic leak detector with visual guiding function - Google Patents
Portable ultrasonic leak detector with visual guiding function Download PDFInfo
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- CN106441710A CN106441710A CN201510498255.XA CN201510498255A CN106441710A CN 106441710 A CN106441710 A CN 106441710A CN 201510498255 A CN201510498255 A CN 201510498255A CN 106441710 A CN106441710 A CN 106441710A
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- display screen
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- guiding function
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Abstract
The invention discloses an ultrasonic leak detector with a visual guiding function, mainly comprising an ultrasonic sensor probe array structure, a power module, an amplifying and filtering circuit module, a DSP (Digital Signal Processor) module, an ARM processing module and the like, wherein the probe array structure is detachably arranged at a shell detection front end, a touch display screen is arranged at the rear end to facilitate observation of leak detection personnel, the probe array structure is a 3*3 array structure jointly constituted by eight paths of ultrasonic sensors and a high-definition camera unit, the detected real scene and the detection result are displayed in the liquid crystal touch display screen in real time, and the leak detection personnel detect leak under visual guidance of the liquid crystal touch display screen. The ultrasonic leak detector can realize real-time leak detection and orientation within an R=0.5m circle range around a sensor probe, can carry out all-directional scanning and detection in a spacecraft cabin under accurate detection steps and method guidance, and realizes accurate judgment on leak holes having the diameters of more than 0.5mm.
Description
Technical field
The invention belongs to spacecraft sealing leak hunting technology field, specifically, the present invention relates to one kind possess can
Depending on changing the portable contactless ultrasonic leak detection device of guiding function.
Background technology
In recent years, with the development of acoustic detection technology, ultrasonic leak detection makes industrial spill detection field
With more and more extensive.Compared to other leak hunting methods, ultrasonic leak detection have quickly, easily feature.And
With the maximization of mankind's spacecraft, long life, on-orbit leak detection become spacecraft in orbit reliability and
The guarantee of safety it is contemplated that the convenience of the in-orbit use of spacefarer and ageing demand, in-orbit use
Leak detector needs preferable man machine interface and operability.
At present, manufacturer has abroad been had to produce supersonic leak detector, French Synergys company produces
LEAKSHOOTER Series ultrasonic leak detector possesses visualization function, but this visualization function is only carried out in real time
Shoot it is impossible to guiding indicates the position or orientation of small opening, testing staff is still and patrols and examines along fixation locus.
And the domestic development having also begun to portable ultraphonic leak detector in recent years, but do not possess visualization function.Cause
This, need the portable ultraphonic leak detector that new generation possesses visualization guiding function badly, to meet space flight
Deng the demand of the leak detection in field, especially in terms of the leak source positioning of large sealing structure, very advantageous.
Content of the invention
The present invention provide a kind of have high-definition camera and colorful display screen with vision guide function just
Take formula supersonic leak detector it is adaptable to spacecraft, vacuum environment simulation facility or other pressure vessel and equipments etc. seal
The Leak Detection of structure.The present invention is designed with the upstream detection of vacuum equipment for standard, but in reality
It is applied equally to the detected downstream of press device leakage during use.
The supersonic leak detector possessing visualization guiding function of the present invention, main inclusion：Band high-definition camera
Ultrasound transducer probe array structure, with the power module of rechargeable battery set, filtering and amplifying circuit mould
Block, DSP processing module, ARM processing module, liquid crystal touch display screen and casing, power module is each
Module provides power supply, and casing is hand-held gun-shaped structure, internal setting power module, filtering and amplifying circuit
Module, DSP processing module and ARM processing module, the detection front end of gun-shaped structure is removably disposed super
Sonic transducer linear transducer array structure, the rear end setting liquid crystal touch display screen of gun-shaped structure is in order to the people that hunts leak
Member is observed, and wherein, ultrasound transducer probe array structure is No. 8 sonacs and high-definition camera
Head unit collectively constitutes 3 × 3 array structure, and the ultrasonic signal that leakage produces is by No. 8 sonacs
After reception through filtering and amplifying circuit module converter be digital signal, sampled through DSP processing module
Calculate and process and analyze, result afterwards is sent in ARM processing module by serial ports, and high-definition camera
The picture that head photographs then is transferred directly to ARM processing module, and outdoor scene and testing result are all shown in real time
In liquid crystal touch display screen, leak detection personnel are hunted leak in the visualization guiding of liquid crystal touch display screen.
Wherein, liquid crystal touch display screen is 5.6 cun of colorful display screens.
Wherein, colorful display screen has man machine operation interface, and interface has shooting, storage, deletes function.
Wherein, casing outer surface setting anti-noise poly- sound cover.
Wherein, ARM processing module electrical connection setting storage element, storage cell is SD storage card.
Wherein, sensor signal passes through switching switch input signal process circuit, first passes through level Four and amplifies
Filter circuit makes signal amplify.
Further, all using AD620, amplification reaches more than 6800 times to level Four filtering and amplifying circuit,
Then by the signal input after amplifying in DSP digital processing circuit.
Further, dsp chip adopts TMS320F28335, carries out Chebyshev's digital filtering and quick
Fourier changes FFT, time-domain signal is converted into frequency-region signal, then analysis result is input to ARM
On display screen, by the operation on screen, signal is shown.
Wherein, region is divided into 9 sub-regions by display screen, popped one's head in array ultrasonic in each viewing area
Detection zone correspond, show in real time the leakage situation in each region.
Wherein, colorful display screen has visualization guiding function, when the ultrasonic wave number detecting reaches leakage
Threshold value, occurs corresponding arrow in the middle of display screen, instruction receives the sensor orientation of maximum ultrasonic signal,
Guiding leak detection personnel above-mentioned direction finding leak source.
Wherein, No. 8 sonacs are separate, and its result will be conveyed to ARM by serial ports by contrast
Display module.
It is an advantage of the current invention that：
1st, the present invention can carry out the real-time display of outdoor scene to small opening and near zone, and on a display screen will
Region is divided into 9 sub-regions, and each viewing area is corresponded with the detection zone of array ultrasonic probe,
Show the leakage situation in each region in real time.
3rd, the present invention has visualization guiding function, when the ultrasonic wave number detecting reaches leak threshold,
Corresponding arrow occurs, instruction receives the sensor orientation of maximum ultrasonic signal, guiding in the middle of display screen
Operator finds leak source in the direction to this.
4th, the visualization model of the present invention is detachable apparatus, changes not after visualization model is dismantled again
Ordinary ultrasonic probe with photographic head and switching switch, supersonic leak detector can be carried out according to no visualization model
Work.
5th, the present invention can to around sensor probe R=0.5m circle scope in, realize real time leak detection and
Orientation, under correct detecting step and guide for method, can to carry out in spacecraft module comprehensive scanning and
Detection, realizes the accurate judgement to the above small opening of diameter 0.5mm.
6th, visualization model of the present invention is shown using touch screen and operates, directly can carry out taking pictures in screen,
Store, check, deleting, the operation such as parameter editor.
Brief description
Fig. 1 is the structured flowchart of the supersonic leak detector with visualization guiding function of the present invention.
Fig. 2 is the supersonic leak detector signal stream block diagram with visualization guiding function of the present invention.
Fig. 3 is the ultrasound transducer probe of the supersonic leak detector with visualization guiding function of the present invention
Array junctions composition.
Fig. 4 is the people with touch display screen in the supersonic leak detector of visualization guiding function of the present invention
The button schematic diagram of machine interactive interface.
Fig. 5 is that the touch display screen of the supersonic leak detector with visualization guiding function of the present invention shoots
Boundary leakage signal designation figure.
Specific embodiment
Below in conjunction with the accompanying drawings traveling one is entered to the supersonic leak detector with visualization guiding function of the present invention
Step explanation, that this explanation is merely exemplary it is no intended to limit the scope of the invention.
The present invention have visualization guiding function supersonic leak detector structured flowchart as shown in figure 1, its
The main array that includes switches probe module, amplification circuit module, power module, DSP module and ARM
Display module, power module is responsible for sensor, DSP and flush bonding module are powered.Wherein sensor
Power supply with DSP can only have power module to provide, and alternatively, the power supply of ARM then also can be by outside 5V
DC source is powered.The array switching that No. 8 sensors and high-definition camera collectively constitute 3 × 3 is ultrasonic
Probe, realizes the detection to ultrasound wave and the display to detection outdoor scene real-time photography and guiding result.This
Invention have visualization guiding function supersonic leak detector master to be processed be ultrasonic signal, its signal stream
As shown in Fig. 2 after the ultrasonic signal that leakage produces is received by 8 road probes of arrayed ultrasonic sensor
It is converted into digital signal through AD, the result calculating after processing and analyzing through the sampling of DSP is passed through
Serial ports is sent on ARM, and the picture that high-definition camera photographs then is transferred directly on ARM, outdoor scene
All it is shown in real time in display screen with testing result, man machine operation interface is ARM display screen, can be at interface
On carry out shooting, the function such as store, delete.
In a specific embodiment, the supersonic leak detector with visualization guiding function of the present invention
The structure chart of array ultrasonic sensor probe, as shown in figure 3, having 8 piezoelectric-type ultrasonic sensors, is taken the photograph
As head is placed in the middle of 8 sensors, the circuit of photographic head is separate with sensor line.8 surpass
Sonic transducer passes through 8 tunnel switching switches, and by DSP clocked flip, switch speed is better than 200ms, realizes
Sensor signal incoming high-precision AD of single channel timesharing and then subsequent treatment is carried out by DSP after on-off control,
Realize 8 tunnels separate, its result will be conveyed to ARM display module, Mei Yilu by serial ports by contrast
A region on the corresponding screen of result and video signal transmission that photographic head receives shows mould to ARM
Block.
In another specific embodiment, sensor signal is passed through switching switch input signal and is processed electricity
Road, first pass through level Four filtering and amplifying circuit make signal amplify, level Four amplification chip all using AD620,
Amplification reaches more than 6800 times, then by the signal input after amplifying to DSP digital processing electricity
Lu Zhong, dsp chip adopts TMS320F28335, carries out Chebyshev's digital filtering and fast Fourier becomes
Change FFT, time-domain signal be converted into frequency-region signal, then analysis result be input on ARM display screen,
By the operation on screen, signal is shown.
High-definition camera connects ARM flush bonding processor by holding wire, shows screen display at 5.6 cun
Photographic head shooting picture.Shoot display picture as shown in figure 4, display screen controls for touch screen.Start picture
For homepage, homepage display Shenzhou printed words, lower section arranges shooting, picture, three touch screen buttons of setting,
It is respectively directed to photographic head shooting picture, shooting image, and three interfaces of relative parameters setting.Touch and " clap
Take the photograph " enter photographic head shooting picture after button, shooting picture frame number is 24 frames/s, is shooting interface
Also there are three touch buttons, be to return respectively, shoot, and check picture, return button and point to homepage,
Shooting is the screen printed image shooting photographic head and stores, and clicks on and check that picture then enters picture circle
Face, by shooting image according to the matrix arrangement of 3*4, may be selected to check corresponding picture and carry out deleting behaviour
Make.After clicking on delete button, interface ejects whether confirm deletion dialog box, after verification could
Execution deletion action.
Under screening-mode, as shown in figure 5, the signal of ultrasonic probe that screen can receive with DSP
It is changed.Screen is divided into 3 × 39 regions, except center is overseas, other regions and figure
Shown in 38 sensor is corresponding.Eight sensor number 0-7 respectively, the numerical value that it receives divides
Not for S0 to S7, realize single channel timesharing detection, the signal receiving every time and biography by switching switch
Sensor numbering and corresponding display screen region correspond, through DSP data processing after AD collection
Processed in mould, the result obtaining corresponding alarm lamp green light, amber light and blinking red lamp or Chang Liang is delivered to
On ARM, ARM center Screen show respective color arrow, as shown in figure 4, the color of arrow and
Flashing mode is identical with DSP result, and level of signal is divided into：Amber light flicker, amber light Chang Liang, red
Lamp flicker, Chang Liangsi grade of red light.Carry out eight numerical value of S0 to S7 to compare while screen brush screen
Operation, the maximum direction of the direction orientation sensor reception of arrow, and corresponding square is marked with corresponding face
Color.When level of signal for common when, maximum direction is shown as green, when level of signal for amber light flicker or
When amber light is often bright, corresponding frame is yellow, if level of signal is when to be blinking red lamp or red light often bright, corresponding
Frame be redness, arrow also corresponds to corresponding color and flicker frequency.
Although above the specific embodiment of the present invention being given with detailed description and illustrating, should refer to
Bright, we can carry out to above-mentioned embodiment various equivalent changing and repairing according to the conception of the present invention
Change, function produced by it still without departing from description and accompanying drawing covered spiritual when, all should this
Within the protection domain of invention.
Claims (10)
1. a kind of supersonic leak detector possessing visualization guiding function, main inclusion：Band high-definition camera
Ultrasound transducer probe array structure, with the power module of rechargeable battery set, filtering and amplifying circuit mould
Block, DSP processing module, ARM processing module, liquid crystal touch display screen and casing, power module is each
Module provides power supply, and casing is hand-held gun-shaped structure, internal setting power module, filtering and amplifying circuit
Module, DSP processing module and ARM processing module, the detection front end of gun-shaped structure is removably disposed super
Sonic transducer linear transducer array structure, the rear end setting liquid crystal touch display screen of gun-shaped structure is in order to the people that hunts leak
Member is observed, and wherein, ultrasound transducer probe array structure is No. 8 sonacs and high-definition camera
Head unit collectively constitutes 3 × 3 array structure, and the ultrasonic signal that leakage produces is by No. 8 sonacs
After reception through filtering and amplifying circuit module converter be digital signal, sampled through DSP processing module
Calculate and process and analyze, result afterwards is sent in ARM processing module by serial ports, and high-definition camera
The picture that head photographs then is transferred directly to ARM processing module, and outdoor scene and testing result are all shown in real time
In liquid crystal touch display screen, leak detection personnel are hunted leak in the visualization guiding of liquid crystal touch display screen.
2. possess the supersonic leak detector of visualization guiding function, wherein, liquid as claimed in claim 1
Brilliant touch display screen is 5.6 cun of colorful display screens.
3. possess the supersonic leak detector of visualization guiding function as claimed in claim 2, wherein, color
Color display screen has man machine operation interface, and interface has shooting, storage, deletes function.
4. possess the supersonic leak detector of visualization guiding function, wherein, machine as claimed in claim 1
Shell outer surface arranges anti-noise poly- sound cover.
5. possess the supersonic leak detector of visualization guiding function, wherein, ARM as claimed in claim 1
Processing module electrical connection setting storage element, storage cell is SD storage card.
6. possess the supersonic leak detector of visualization guiding function as claimed in claim 1, wherein, pass
Sensor signal passes through switching switch input signal process circuit, and first passing through level Four filtering and amplifying circuit makes letter
Number amplify.
7. possess the supersonic leak detector of visualization guiding function, wherein, four as claimed in claim 6
All using AD620, amplification reaches more than 6800 times to level filtering and amplifying circuit, after then amplifying
Signal input in DSP digital processing circuit, dsp chip adopts TMS320F28335, carries out cutting ratio
Snow husband's digital filtering and fast Fourier change FFT, time-domain signal are converted into frequency-region signal, then will
Analysis result is input on ARM display screen, is shown signal by the operation on screen.
8. the supersonic leak detector possessing visualization guiding function as described in any one of claim 1-7,
Wherein, region is divided into 9 sub-regions by display screen, the inspection popped one's head in each viewing area with array ultrasonic
Survey region to correspond, show the leakage situation in each region in real time.
9. the supersonic leak detector possessing visualization guiding function as described in any one of claim 1-7,
Wherein, colorful display screen has visualization guiding function, when the ultrasonic wave number detecting reaches leak threshold,
Corresponding arrow occurs, instruction receives the sensor orientation of maximum ultrasonic signal, guiding in the middle of display screen
Leak detection personnel above-mentioned direction finding leak source.
10. the supersonic leak detector possessing visualization guiding function as described in any one of claim 1-7,
Wherein, No. 8 sonacs are separate, and its result will be conveyed to ARM by serial ports by contrast and shows
Module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498255.XA CN106441710B (en) | 2015-08-13 | 2015-08-13 | The portable ultraphonic leak detector for having visualization guiding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498255.XA CN106441710B (en) | 2015-08-13 | 2015-08-13 | The portable ultraphonic leak detector for having visualization guiding function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106441710A true CN106441710A (en) | 2017-02-22 |
| CN106441710B CN106441710B (en) | 2019-05-14 |
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ID=58093791
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510498255.XA Active CN106441710B (en) | 2015-08-13 | 2015-08-13 | The portable ultraphonic leak detector for having visualization guiding function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966310A (en) * | 2017-11-21 | 2018-04-27 | 北京卫星环境工程研究所 | Space capsule body pressure maintains system automatically |
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|---|---|---|---|---|
| WO2002066950A1 (en) * | 2001-02-20 | 2002-08-29 | Tlv Co., Ltd. | Portable leak detector |
| CN201974410U (en) * | 2011-02-28 | 2011-09-14 | 窦艺成 | Ultrasonic-wave and digital-camera combined-type flaw detector |
| CN102901772A (en) * | 2012-06-12 | 2013-01-30 | 过宾 | Robot for intelligent tracking ultrasonic detection of welding line, and software analysis system therefor |
| FR2981151B1 (en) * | 2011-10-11 | 2013-10-25 | Synergys Technologies | PORTABLE DEVICE FOR DETECTING LEAKS |
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2015
- 2015-08-13 CN CN201510498255.XA patent/CN106441710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002066950A1 (en) * | 2001-02-20 | 2002-08-29 | Tlv Co., Ltd. | Portable leak detector |
| CN201974410U (en) * | 2011-02-28 | 2011-09-14 | 窦艺成 | Ultrasonic-wave and digital-camera combined-type flaw detector |
| FR2981151B1 (en) * | 2011-10-11 | 2013-10-25 | Synergys Technologies | PORTABLE DEVICE FOR DETECTING LEAKS |
| CN102901772A (en) * | 2012-06-12 | 2013-01-30 | 过宾 | Robot for intelligent tracking ultrasonic detection of welding line, and software analysis system therefor |
Non-Patent Citations (1)
| Title |
|---|
| 闫荣鑫: "便携式舱内超声检漏仪的研制", 《中国空间科学技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966310A (en) * | 2017-11-21 | 2018-04-27 | 北京卫星环境工程研究所 | Space capsule body pressure maintains system automatically |
| CN107966310B (en) * | 2017-11-21 | 2019-11-08 | 北京卫星环境工程研究所 | Space capsule body pressure maintains system automatically |
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| Publication number | Publication date |
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| CN106441710B (en) | 2019-05-14 |
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