CN105004733B - A kind of Portable insulation armored fabric defect test method and tester - Google Patents
A kind of Portable insulation armored fabric defect test method and tester Download PDFInfo
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- CN105004733B CN105004733B CN201510463878.3A CN201510463878A CN105004733B CN 105004733 B CN105004733 B CN 105004733B CN 201510463878 A CN201510463878 A CN 201510463878A CN 105004733 B CN105004733 B CN 105004733B
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Abstract
The Portable insulation armored fabric defect test method of the present invention, is characterised by, the carry out high-definition image collection to insulating protection fabric, and being made marks in fault location first；Then detect whether the insulating properties of fault location are up to standard by way of gradually pressurizeing.The defect test instrument of the present invention, including suspension holdfast, hand-held shadow scanner, double coordinate numerical control infrared laser locking devices, combination control cabinet, display screen and permanent magnetism probe, hand-held shadow scanner are used for the high-definition image for gathering insulating protection fabric exterior；Image shows that combination control cabinet is applied to the voltage of permanent magnetism probe both sides by changing, and realizes the measurement of insulating properties by display screen.The insulating protection fabric defect method of testing and tester of the present invention, solve the inaccuracy of existing simple dependence eye-observation, and use the problem of " megger " can not carry out scientific measurement to fault location, it can ensure that the armored fabric that there is insulation hidden danger is found, it ensure that the personal safety of live line work personnel, beneficial effect significantly, is suitable for the application of popularization.
Description
Technical field
The present invention relates to a kind of Portable insulation armored fabric defect test method and tester, in particular, especially
It is related to the method for testing and tester of a kind of achievable insulating protection fabric defect nothing left leak detection.
Background technology
Insulating protection fabric（Clothes are such as dielectrically separated from, tippet is dielectrically separated from, is dielectrically separated from blanket）Make applied to electrification in high voltage
Industry occasion, plays a part of keeping apart staff with electrical body, protects it from the injury of high pressure.Due to power distribution network 10kV
High pressure there is very strong penetrability, this requires insulating protection fabric to stand intact, once have situation that is damaged, scratching
Occur, high pressure can puncture through breakage moment, and great damage is caused to field personnel.
Therefore, this require staff the insulating protection fabric dressing or use check before livewire work and
Detection, to ensure that it can normally be used.Existing inspection method, some macroscopic forms of use, from appearance check be
It is no exist scratch, damaged part, if there is livewire work can not then using again；The regulation detection method for comparing science is to use
" megger " is measured to the insulating properties of insulating protection fabric surfaces externally and internally, because armored fabric is insulating materials in itself, profit
With the probe of megger to where and how to measure all be actual use when problem encountered, cause that there is presently no a kind of section
Learn, rationally, the measuring method that uses, live exhaustively insulating properties inspection and measurement can be realized to insulating protection fabric, really
Protect the safety of staff.
The content of the invention
There is provided a kind of Portable insulation armored fabric defect test in order to overcome the shortcoming of above-mentioned technical problem by the present invention
Method and tester.
The Portable insulation armored fabric defect test method of the present invention, it is particular in that, comes by the following method
Realize：High-definition image collection is gradually carried out to the outer surface of insulating protection fabric to be detected first with image collecting device,
During IMAQ, by observing the local high-definition image of insulating protection fabric shown on display screen, judgement is
It is not no to there is defect that is damaged and scratching, and made marks in fault location, if on insulating protection fabric the mark of fault location be respectively a1,
a2、…、an；Then the both sides permanent magnetism probe containing electrode being placed at insulating protection fabric defect, the electrode ground connection of side,
The electrode of opposite side is connected with the output end of pressue device, and the insulating properties of fault location are detected by way of gradually pressurizeing and are
It is no up to standard, if there is fault location not up to standard, then show that the insulating protection fabric is unavailable.
The Portable insulation armored fabric defect test method of the present invention, it is automatically fixed that defect that is described damaged and scratching passes through
Position method is marked, and is automatically positioned using double coordinate numerical control infrared laser positioners, and double coordinate numerical controls are infrared to swash
The X-axis laser and Y-axis laser that can be moved respectively with respective servomotor are provided with light-seeking device；When discovery insulation
On armored fabric behind existing defects region, servomotor can drive laser movement automatically to relevant position, X-axis laser and Y
The intersection point of axle laser institute isolychn is defective locations, realizes being automatically positioned for defect area.
The Portable insulation armored fabric defect test method of the present invention, the fault location of the judgement insulating protection fabric is
No use method of comparison up to standard or standard value criterion；
Method of comparison is realized using following steps：Pass through the local high definition figure of the insulating protection fabric shown by display screen
Picture, selects intact region, and insulaion resistance, the Leakage Current when applying nominal voltage to the region are measured；
Then measure again defect area apply nominal voltage when insulaion resistance and Leakage Current, by contrast defect area with it is intact
The insulator chain in lossless region and the difference of Leakage Current whether within the specific limits, come judge fault location insulating properties whether
It is up to standard；
Standard value criterion is：Gradually increase is applied to voltage at defect area, see whether can reach it is to be detected exhausted
The withstanding voltage of edge armored fabric defined, if be unreachable to, shows that the insulating protection fabric is unavailable.
The Portable insulation armored fabric defect test instrument of the present invention, including suspension holdfast, hand-held shadow scanner, combination
Control cabinet, display screen, permanent magnetism probe and double coordinate numerical control infrared laser positioners, hand-held shadow scanner, display screen and
Permanent magnetism probe is connected with combining control cabinet；The suspension holdfast is used to fix insulating protection fabric to be detected, hand-held light
Shadow scanner is used for the high-definition image for gathering insulating protection fabric exterior；Combining control cabinet is used to carry out acquired image
Handle and shown by display screen, permanent magnetism probe is connected with combining the voltage output end of control cabinet；Control cabinet is combined to lead to
The voltage for changing and being applied to permanent magnetism probe both sides is crossed, the measurement to insulating protection fabric-insulation performance is realized；
Described pair of coordinate numerical control infrared laser positioner is made up of X-axis detent mechanism and Y-axis detent mechanism, X-axis positioning
Mechanism and Y-axis detent mechanism are constituted by leading screw, the nut being arranged on screw mandrel, servomotor, and the two ends of screw mandrel pass through axle bed
It is fixed, servomotor drives screw mandrel to be rotated by shaft coupling；It is respectively fixed with two nuts and fault location is determined
The X-axis laser and Y-axis laser of position.
The Portable insulation armored fabric defect test instrument of the present invention, the permanent magnetism probe is by left probe socket and right probe socket
Composition, is respectively and fixedly provided with electrode and permanent magnet in left probe socket and right probe socket, and the side of left probe socket and right probe socket is respectively provided with
There is plug, opposite side is fixed with the wire for being provided with and being electrically connected with electrode on the electrostatic prevention film formed by semi-conducting material, plug,
Electrostatic prevention film and contact electrode；The side heteropolarity each other of electrostatic prevention film is set on left probe socket and right probe socket so that left
Probe socket and right probe socket can be accommodated at the defective locations of insulating protection fabric；Wire on the plug of side is connected with power supply
Connect, the wire on opposite side plug is connected with the power output end combined on control cabinet.
The Portable insulation armored fabric defect test instrument of the present invention, the suspension holdfast is telescopic bracket, suspension
It is provided with support on some geometrical clamps accommodated to insulating protection fabric, combination control cabinet and is provided with display testing result
Measurement data display screen.
The beneficial effects of the invention are as follows：The Portable insulation armored fabric defect test method and tester of the present invention, it is first
The high-definition image that image capture device obtains insulating protection fabric exterior is first passed through, by the real-time pictures for showing screen display
Insulating protection fabric is checked with the presence or absence of defect that is damaged or scratching, and defect area is marked；Then by being placed on
Whether the permanent magnetism probe of defective locations both sides carries out insulating properties test, up to standard with all defect region of judge mark.Enter one
Step ground, by using double coordinate numerical control infrared laser positioners, can be automatically positioned to fault location, realize to defective bit
The precise positioning put and detection.
The portable defect test method and tester of the present invention, can find out all defect area on armored fabric exhaustive
Domain is simultaneously detected, solves the inaccuracy of existing simple dependence eye-observation, and can not be to fault location using " megger "
The problem of carrying out scientific measurement, it is ensured that the armored fabric that there is insulation hidden danger is found, it is ensured that the people of live line work personnel
Body safety, beneficial effect significantly, is suitable for the application of popularization.
Brief description of the drawings
Fig. 1 is the schematic diagram of conventional images acquisition system；
Fig. 2 is the schematic diagram of the insulating protection fabric defect tester of the present invention；
Fig. 3 is the structure chart of suspension holdfast in the present invention；
The structure chart that Fig. 4 pops one's head in for permanent magnetism in the present invention；
Fig. 5 is the structural representation of double coordinate numerical control infrared laser positioners in the present invention.
In figure：1 suspension holdfast, 2 hand-held shadow scanners, 3 combination control cabinets, 4 display screens, 5 permanent magnetism probe, 6 measurement numbers
According to display screen, 7 geometrical clamps, 8 insulating protection fabrics, 9 left probe sockets, 10 right probe sockets, 11 electrodes, 12 plugs, 13 permanent magnets, 14
Electrostatic prevention film, 15 adjustment caps, 16 insulating protection fabrics, 17 illumination systems, 18 ccd video cameras, 19 image pick-up cards, 20 industry
Computer, 21 controlling organizations, 22 are detected target, 23 X-axis detent mechanisms, 24 Y-axis detent mechanisms, 25 screw mandrels, 26 nuts, 27
Servomotor, 28 shaft couplings, 29 axle beds, 30 fixed seats, 31 X-axis lasers, 32 Y-axis lasers.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, giving the schematic diagram of conventional images acquisition system, shown ccd video camera 18 is in illumination system
Under 17 illuminating effect, to be detected target 22 carry out IMAQ, the image of collection after the processing of image pick-up card 19,
Form the view data for being available for industrial computer 20 to recognize.Industrial computer 20 can not only show the image of reception, and
And the processing such as can also be handled, recognized, and result is fed back into controlling organization 21, carried out accordingly by controlling organization 21
Operation.As can be seen here, the collection of high-definition image is a kind of technology of relative maturity.
The present invention Portable insulation armored fabric defect inspection method be：First with image collecting device to be detected
The outer surface of insulating protection fabric gradually carry out high-definition image collection, during IMAQ, by observing display screen
The local high-definition image of upper shown insulating protection fabric, judges whether defect that is damaged and scratching, and in fault location
Make marks, if on insulating protection fabric the mark of fault location be respectively a1, a2 ..., an；Then the permanent magnetism containing electrode is popped one's head in
The both sides being placed at insulating protection fabric defect, the electrode ground connection of side, the output end phase of the electrode of opposite side and pressue device
Connection, detects whether the insulating properties of fault location are up to standard by way of gradually pressurizeing, if there is fault location not up to standard, then
Show that the insulating protection fabric is unavailable.
Wherein, defect that is damaged and scratching is marked by automatic positioning method, and is swashed using double coordinate numerical controls are infrared
Light-seeking device is automatically positioned, and being provided with double coordinate numerical control infrared laser positioners can be respectively with respective servo electricity
The X-axis laser and Y-axis laser of machine motion；After existing defects region on insulating protection fabric is found, servomotor can be certainly
Dynamic to drive laser movement to relevant position, the intersection point of X-axis laser and Y-axis laser institute isolychn is defective locations, real
Being automatically positioned for defect area is showed.
Wherein, the fault location use method of comparison whether up to standard or standard value criterion of insulating protection fabric are judged；Contrast
Method is realized using following steps：By the local high-definition image of the insulating protection fabric shown by display screen, select intact
Lossless region, and insulaion resistance when applying nominal voltage to the region, Leakage Current measures；Then measure and fall vacant again
The insulaion resistance and Leakage Current when region applies nominal voltage are fallen into, by the insulation for contrasting defect area and excellent region
The difference of circuit and Leakage Current whether within the specific limits, to judge whether the insulating properties of fault location up to standard；Standard value is sentenced
The method of determining is：Gradually increase is applied to the voltage at defect area, sees whether can reach insulating protection fabric defined to be detected
Withstanding voltage, if be unreachable to, show that the insulating protection fabric is unavailable.
As shown in Fig. 2 giving the schematic diagram of the insulating protection fabric defect tester of the present invention, it includes suspension arrangement
1st, hand-held shadow scanner 2, combination control cabinet 3, display screen 4, permanent magnetism probe 5, measurement data display screen 6 and geometrical clamp 7, shown
Multiple geometrical clamps 7 be arranged on suspension holdfast 1, the blessing of insulating protection fabric 16 to be detected is acted on by geometrical clamp 7,
Insulating protection fabric 16 can be fixed on suspension holdfast 1.Hand-held shadow scanner 2, display screen 4 and permanent magnetism probe 5 are and group
Control cabinet 3 is closed to be connected.
Hand-held shadow scanner 2 is gradually acquired to the image of the outer surface of insulating protection fabric 8, and by the image of collection
Data input is to combining on control cabinet 3, and the local high-definition image of the insulating protection fabric of collection is passed through display by combination control cabinet 3
Screen 4 shows that testing staff is by observing the high-definition image shown on display screen 4, you can find to break on insulating protection fabric 8
The defect damaged and scratched, solves the problem of being difficult to find out defect area by naked eyes.Find out lacking on insulating protection fabric
Fall into behind region, and be marked, and recorded in combination control cabinet 3.Shown measurement data display screen 6 is used for measurement
As a result shown, so that testing staff reads.As shown in figure 3, the structure chart of suspension holdfast in the present invention is given, if figure
Suspension holdfast 1 shown in 2 is front view, then the suspension holdfast 1 in Fig. 3 is just top view；Shown suspension holdfast 1 is to stretch
Contracting formula, in order to carry and use.
Defect area on insulating protection fabric 16 is marked finish after, permanent magnetism probe 5 is then placed in defect area
The electrode ground connection of side in both sides, permanent magnetism probe 5, the electrode of opposite side is connected with combining the power output end of control cabinet 3.It is logical
Cross 3 pair of one lateral electrode of combination control cabinet and apply voltage, using method of comparison recited above or standard value criterion, to judge to lack
Whether the insulating properties for falling into region are up to standard, if not up to standard, the surface insulating protection fabric is unavailable.
As shown in figure 5, giving the structural representation of double coordinate numerical control infrared laser positioners in the present invention, double coordinates
Numerical control infrared laser positioner is arranged on suspension holdfast 1, and it is made up of X-axis detent mechanism 23 and Y-axis detent mechanism 24, X
Axle allocation mechanism 23 and Y-axis detent mechanism 24 are by leading screw 25, nut 26, servomotor 27, shaft coupling 28, axle bed 29, fixation
Seat 30 is constituted, and the screw mandrel 25 in X-axis detent mechanism 23 and Y-axis detent mechanism is respectively along the transverse direction of insulating protection fabric 8 and vertical
Direction is set.The two ends of screw mandrel 25 are supported by two axle beds 29, to ensure freely rotating for screw mandrel 25.Servomotor 27 leads to
Crossing shaft coupling 28 drives screw mandrel 25 to be rotated, and nut 26 is arranged on screw mandrel 25, can be driven during screw mandrel 25 is rotated
Nut 26 is moved along its length；Fixed seat 30 realizes the fixation to servomotor 27 and supporting role.X-axis detent mechanism 23
X-axis laser 31 and Y-axis laser 32 are respectively fixed with the nut 26 on Y-axis detent mechanism 24.
After combination control cabinet 3 detects that defective region is present on insulating protection fabric 8, then X-axis detent mechanism is controlled
23 and the servomotor of Y-axis detent mechanism 24 moved so that X-axis laser 31 and Y-axis laser 32 move to corresponding positions
Put, the joint for sending out laser is the position where defect area, to realize accurate marker.
As shown in figure 4, giving the structure chart that permanent magnetism is popped one's head in the present invention, it is by 10 groups of left probe socket 9 and right probe socket
Into in use, left probe socket 9 and right probe socket 10 are located at the both sides of insulating protection fabric 16 respectively.Left probe socket 9 and right probe
Electrode 11 and permanent magnet 13 are provided with seat 10, electrode 11 is in central position, and permanent magnet 13 is peripherally located.Left probe socket
9 left side and the right side of right probe socket 10 are respectively and fixedly provided with plug 12, and plug 12 is fixed on left probe socket 9 or the right side by adjustment cap 15
On probe socket 10, the wire electrically connected with electrode 11 is provided with plug 12.
Wire in shown left probe socket 9 on plug 12 is connected with power supply, and the wire on right probe socket 10 is with combining
The voltage output end of control cabinet 3 is connected.The right side of left probe socket 9 is provided with electrostatic prevention film 14, the left side of right probe socket 10
Electrostatic prevention film 14 is provided with, electrostatic prevention film 14 is formed by semi-conducting material manufacturing, electrostatic prevention film 14 and the electricity on corresponding probe socket
Pole 11 is in close contact, to realize conducting function.
Mounting means of the permanent magnet 13 in left probe socket 9 and right probe socket 10 should be met：Left probe socket 9 and right probe socket
The side of electrostatic prevention film 14 should opposite pole each other on 10.So, when in use, left probe socket 9 can be certainly with right probe socket 10
Dynamic absorption is easy to implement the detection to fault location insulating properties in the both sides of insulating protection fabric 8.Treat that all fault locations are examined
After survey is finished, in order to prevent electrostatic from remaining on tested insulating protection fabric, the left surface of insulating protection fabric 8 is used for and ground
It is connected, electric charge can be fallen by abrupt release；Also need by the way that the wire on right probe socket 10 is connected to ground, to discharge electrostatic.
Claims (5)
1. a kind of Portable insulation armored fabric defect test method, it is characterised in that realize by the following method：It is sharp first
High-definition image collection is gradually carried out to the outer surface of insulating protection fabric to be detected with image collecting device, in IMAQ
During, by observing on display screen the local high-definition image of shown insulating protection fabric, judge whether it is damaged and
The defect of scuffing, and being made marks in fault location, if on insulating protection fabric the mark of fault location be respectively a1, a2 ..., an；So
The both sides that the permanent magnetism probe containing electrode is placed at insulating protection fabric defect afterwards, the electrode ground connection of side, the electricity of opposite side
Pole is connected with the output end of pressue device, detects whether the insulating properties of fault location are up to standard by way of gradually pressurizeing, such as
There is fault location not up to standard in fruit, then show that the insulating protection fabric is unavailable；
Defect that is described damaged and scratching is marked by automatic positioning method, and using double coordinate numerical control infrared laser positioning
Device is automatically positioned, and be provided with double coordinate numerical control infrared laser positioners to move with respective servomotor respectively
X-axis laser and Y-axis laser；After existing defects region on insulating protection fabric is found, servomotor can drive automatically
Laser movement is to relevant position, and the intersection point of X-axis laser and Y-axis laser institute isolychn is defective locations, is realized scarce
Fall into being automatically positioned for region.
2. Portable insulation armored fabric defect test method according to claim 1, it is characterised in that：It is described to judge exhausted
The fault location of edge armored fabric use method of comparison whether up to standard or standard value criterion；
Method of comparison is realized using following steps：Pass through the local high-definition image of the insulating protection fabric shown by display screen, choosing
Insulaion resistance, Leakage Current when selecting out intact region, and applying nominal voltage to the region are measured；Then again
The insulaion resistance and Leakage Current when defect area applies nominal voltage are measured, by contrasting defect area and excellent area
The insulator chain in domain and the difference of Leakage Current whether within the specific limits, to judge whether the insulating properties of fault location up to standard；
Standard value criterion is：Gradually increase is applied to the voltage at defect area, sees that whether can reach insulation to be detected prevents
The withstanding voltage of fabric defined is protected, if be unreachable to, shows that the insulating protection fabric is unavailable.
3. a kind of Portable insulation armored fabric defect test instrument, it is characterised in that：Including suspension holdfast（1）, hand-held shadow sweeps
Retouch device（2）, combination control cabinet（3）, display screen（4）, permanent magnetism probe（5）And double coordinate numerical control infrared laser positioners, hand
Shadow scanner, display screen and permanent magnetism probe is held with combining control cabinet to be connected；The suspension holdfast is used to fix to be detected
Insulating protection fabric（8）, high-definition image of the hand-held shadow scanner for gathering insulating protection fabric exterior；Combination control
Case is used to handle acquired image and show by display screen, and permanent magnetism probe is defeated with combining the voltage of control cabinet
Go out end to be connected；Combination control cabinet is applied to the voltage of permanent magnetism probe both sides by changing, and realizes to insulating protection fabric-insulation
The measurement of performance；
Described pair of coordinate numerical control infrared laser positioner is by X-axis detent mechanism（23）With Y-axis detent mechanism（24）Composition, X-axis
Detent mechanism and Y-axis detent mechanism are by leading screw（25）, the nut that is arranged on screw mandrel（26）, servomotor（27）Composition, silk
The two ends of bar pass through axle bed（29）It is fixed, servomotor passes through shaft coupling（28）Screw mandrel is driven to be rotated；On two nuts
It is respectively fixed with the X-axis laser positioned to fault location（31）With Y-axis laser（32）.
4. Portable insulation armored fabric defect test instrument according to claim 3, it is characterised in that：The permanent magnetism probe
（5）By left probe socket（9）With right probe socket（10）Electrode is respectively and fixedly provided with composition, left probe socket and right probe socket（11）And permanent magnetism
Body（13）, the side of left probe socket and right probe socket is provided with plug（12）, opposite side is fixed with to be formed by semi-conducting material
Electrostatic prevention film（14）, it is provided with and electrode on plug（11）The wire of electrical connection, electrostatic prevention film and contact electrode；Left probe
Electrostatic prevention film is set on seat and right probe socket（14）Side heteropolarity each other so that left probe socket and right probe socket can accommodate
At the defective locations of insulating protection fabric；Side plug（12）On wire be connected with power supply, leading on opposite side plug
Line is connected with the power output end combined on control cabinet.
5. the Portable insulation armored fabric defect test instrument according to claim 3 or 4, it is characterised in that：The suspension
Support（1）For telescopic bracket, some geometrical clamps accommodated to insulating protection fabric are provided with suspension holdfast（7）,
Combine control cabinet（3）On be provided with display testing result measurement data display screen（6）.
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| CN201510463878.3A CN105004733B (en) | 2015-07-31 | 2015-07-31 | A kind of Portable insulation armored fabric defect test method and tester |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105785245A (en) * | 2016-04-24 | 2016-07-20 | 国网辽宁省电力有限公司抚顺供电公司 | Live insulated clothing detection device |
| CN108120720A (en) * | 2017-12-15 | 2018-06-05 | 宋金博 | A kind of Bridge Crack identification device based on camera and laser line generator |
| CN108572174A (en) * | 2018-04-25 | 2018-09-25 | 苏州农业职业技术学院 | A kind of quality of agricultural product index nondestructive detection method |
| CN111721891A (en) * | 2020-05-18 | 2020-09-29 | 镇江宇诚智能装备科技有限责任公司 | Linen cleanliness detection system and detection method thereof |
| CN113702450A (en) * | 2020-05-22 | 2021-11-26 | 新疆金风科技股份有限公司 | Method and device for detecting defects of magnetic pole coating |
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Inventor after: Li Gang Inventor after: Zuo Xinbin Inventor after: Chen Gang Inventor after: Shang Tao Inventor after: Liu Shiliang Inventor after: Xu Qinshan Inventor after: Cao Jianguo Inventor after: Zhang Xiaochuan Inventor after: Li Shidong Inventor before: Li Gang Inventor before: Zuo Xinbin Inventor before: Zou Zongfeng Inventor before: Shang Tao Inventor before: Liu Shiliang |