CN111879786A - Method for carrying out nondestructive testing on power transmission line clamp by applying flexible memory phosphor plate - Google Patents
Method for carrying out nondestructive testing on power transmission line clamp by applying flexible memory phosphor plate Download PDFInfo
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- CN111879786A CN111879786A CN202010759027.4A CN202010759027A CN111879786A CN 111879786 A CN111879786 A CN 111879786A CN 202010759027 A CN202010759027 A CN 202010759027A CN 111879786 A CN111879786 A CN 111879786A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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Abstract
The invention discloses a method for carrying out nondestructive testing on a power transmission line clip by applying a flexible memory phosphor plate, wherein the flexible memory phosphor plate is placed behind the power transmission line clip, a laser generator emits laser rays, the flexible memory phosphor plate receives the radiation of the laser rays and stores the energy of the incident radiation of the laser rays; the scanner scans the flexible memory phosphor plate to obtain a scanned image; the scanning image is transmitted to the computer equipment, the computer equipment analyzes the structural defects of the power transmission line clamp according to the scanning image, wireless transmission in a complex electromagnetic environment with high voltage is avoided, collision can be borne, the flexible memory phosphorescent plate is easier to carry and operate compared with a digital flat detector, and the flexible memory phosphorescent plate is easier to carry and operate, so that laser ray flaw detection is realized more conveniently and efficiently, the power supply reliability in the flaw detection process is improved, and the cost can be reduced.
Description
Technical Field
The invention relates to the technical field of flaw detection, in particular to a method for carrying out nondestructive detection on a transmission line clamp by applying a flexible memory phosphor plate.
Background
In the prior art, a digital flat detector is generally adopted for flaw detection of an overhead cable, specifically, an X-ray machine is adopted for detecting an image signal of an internal structure of the cable and then wirelessly transmitting the image signal to the digital flat detector, and the digital flat detector wirelessly transmits image information to a control platform for image processing and then performs imaging display.
However, the method of flaw detection using the above digital flat panel detector has the following drawbacks: firstly, when the high-voltage tower works in a complex strong electromagnetic field environment, the interference of the strong electromagnetic field on a signal wireless transmission mode is very large, so that the success rate of final imaging display is extremely low; when utilizing unmanned aerial vehicle electric power unmanned aerial vehicle to patrol and examine because power line voltage level is higher, the electromagnetic interference that the unmanned aerial vehicle of operation near it received just is big more, takes place earth magnetism signal, remote control, picture signaling signal phenomena such as losing more easily. Although Real Time Kinematic (RTK) technology solves the interference of geomagnetic signals and magnetic compass data, the unmanned aerial vehicle can be controlled in a high-voltage tower. However, the problems of signal loss due to the electromagnetic shielding diagram still remain to be solved. Secondly, the use of the digital flat detector requires power failure operation of the high-voltage tower, and the power failure operation brings huge economic loss to power supply enterprises; since the operation of the digital flat panel detector is based on X-ray stimulation of the photodiode using 127 μm square pixel array Thin Film Transistor (TFT) imaging, it is not possible to protect the internal structure of the digital flat panel detector using a faraday cage. In the equipotential process of live working, the photodiode and the square pixel array are damaged by arc discharge. Thirdly, the digital flat panel detector is a precision electronic device, and comprises a router, a battery and other devices, when the digital flat panel detector works in the field, the open air and the complex strong electromagnetic field environment, electronic devices in the device are easily interfered by the strong electromagnetic field, and the failure rate of the device is extremely high. Fourthly, after the digital flat panel detector is damaged, the return to the factory has extremely high maintenance cost and long maintenance time. If the square pixel array TFT is damaged, the digital flat panel detector is basically scrapped and cannot be used continuously. Fifth, the digital flat panel detector weighs much, together with the battery and wireless transmission, about 15 kg, and it is very inconvenient for the power operator to carry an electric tower higher than 100 meters. Sixthly, the digital flat panel detector needs an X-ray machine to continuously transmit a plurality of pulse signals, and the plurality of pulse signals have large radiation to operators. Meanwhile, the service life of the X-ray machine with high price can be shortened. Based on the defects, the invention provides a novel method and a novel device for carrying out nondestructive testing on a power transmission line clamp by applying a flexible memory phosphor plate.
Disclosure of Invention
The embodiment of the invention provides a method for carrying out nondestructive testing on a power transmission line clamp by applying a flexible memory phosphor plate, which can realize laser ray flaw detection more conveniently and efficiently, reduce the cost and is easier to carry and operate.
In a first aspect, an embodiment of the present invention provides a method for performing a nondestructive test on a power transmission line clip by using a flexible memory phosphor plate, which is applied to a device for performing a nondestructive test on a power transmission line clip by using a flexible memory phosphor plate, where the device for performing a nondestructive test on a power transmission line clip by using a flexible memory phosphor plate includes: a laser generator, a flexible memory phosphor plate, a scanner; the method comprises the following steps:
placing the flexible memory phosphor plate behind a power transmission line clamp, wherein the laser generator emits laser rays which are radiated to the flexible memory phosphor plate through the power transmission line clamp;
the flexible memory phosphor plate receives the radiation of the laser ray and stores the energy of the incident radiation of the laser ray;
the scanner scans the flexible memory phosphor plate to obtain a scanned image;
and transmitting the scanning image to computer equipment, and analyzing the structural defects of the wire clamps of the power transmission line by the computer equipment according to the scanning image.
In a second aspect, an embodiment of the present invention provides an apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate, where the apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate includes: a laser generator, a flexible memory phosphor plate, a scanner; wherein the content of the first and second substances,
the laser generator is used for emitting laser rays when the flexible memory phosphor plate is placed behind a wire clamp of a power transmission line, and the laser rays are radiated to the flexible memory phosphor plate through the wire clamp of the power transmission line;
the flexible memory phosphor plate is used for receiving the radiation of the laser ray and storing the energy of the incident radiation of the laser ray;
the scanner is used for scanning the flexible memory phosphor plate to obtain a scanned image; transmitting the scanned image to a computer device;
and the computer equipment is used for analyzing the structural defects of the power transmission line clamps according to the scanning images.
It can be seen that, in the embodiment of the present invention, by placing the flexible memory phosphor plate behind the power transmission line clip, the laser generator emits laser rays, which are radiated onto the flexible memory phosphor plate through the power transmission line clip; the flexible memory phosphor plate receives the radiation of the laser ray and stores the energy of the incident radiation of the laser ray; the scanner scans the flexible memory phosphor plate to obtain a scanned image; the scanning image is transmitted to the computer equipment, the computer equipment analyzes the structural defects of the power transmission line clamp according to the scanning image, wireless transmission in a complex electromagnetic environment with high voltage is avoided, collision can be borne, the flexible memory phosphorescent plate is easier to carry and operate compared with a digital flat detector, and the flexible memory phosphorescent plate is easier to carry and operate, so that laser ray flaw detection is realized more conveniently and efficiently, the power supply reliability in the flaw detection process is improved, and the cost can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1A is a schematic diagram of an apparatus for non-destructive testing of a power line clip using a flexible memory phosphor plate according to an embodiment of the present invention;
FIG. 1B is a schematic illustration of a scanned image for performing flaw detection on a cable according to an embodiment of the present invention;
FIG. 1C is a schematic diagram of a flexible memory phosphor plate according to an embodiment of the present invention;
FIG. 1D is a schematic structural view of another flexible memory phosphor sheet provided by an embodiment of the present invention;
FIG. 1E is a schematic illustration of a cassette according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for non-destructive testing of transmission line clamps using flexible memory phosphor plates according to an embodiment of the present invention;
FIG. 3A is a schematic diagram illustrating another apparatus for non-destructive testing of transmission line clamps using flexible memory phosphor plates in accordance with an embodiment of the present invention;
FIG. 3B is a schematic flow chart of another method for performing non-destructive testing on transmission line clamps using flexible memory phosphor plates according to embodiments of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The computer device according to the embodiment of the present invention may include various handheld devices (such as a Mobile phone, a tablet computer, etc.), a vehicle-mounted device, a wearable device (e.g., a smart watch), a computing device, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), a Mobile Station (MS), a terminal device (terminal device), and the like.
The following describes embodiments of the present invention in detail.
Referring to fig. 1A, fig. 1A is a schematic structural diagram of an apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate according to an embodiment of the present invention, the apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate includes a laser generator, a flexible memory phosphor plate, and a scanner, wherein,
the laser generator is used for emitting laser rays, and the laser rays are radiated to the flexible memory phosphor plate through the power transmission line clip;
the flexible memory phosphor plate is used for receiving the radiation of the laser ray and storing the energy of the incident radiation of the laser ray;
the scanner is used for scanning the flexible memory phosphor plate to obtain a scanned image; transmitting the scanned image to a computer device;
and the computer equipment is used for analyzing the structural defects of the power transmission line clamps according to the scanning images.
Wherein the laser ray is an X ray or a gamma ray. The transmission line clamp can be a strain clamp, a straight connecting pipe and the like.
The laser emitter may be an X-ray machine, or a gamma ray emitter.
For example, the laser emitter may be an X-ray machine, which sets two pulse signals, and emits X-rays when the X-ray machine is turned on, and after about 15 seconds of emission, the X-ray machine may be turned off to stop emitting X-rays.
In a specific implementation, the flexible memory phosphor plate can be placed behind a power transmission line clip, when the flexible memory phosphor plate is placed behind the power transmission line clip, the laser generator emits laser rays, the laser rays are radiated onto the flexible memory phosphor plate through the power transmission line clip, and the incident radiated energy is stored on the flexible memory phosphor plate.
The scanner scans a scanned image from the flexible memory phosphor plate by emitting a finely focused laser beam stimulus. Upon stimulation, the flexible memory phosphor plate emits blue light at an intensity proportional to the radiant energy received during irradiation by the laser emitter.
The scanner transmits the scanned image to the computer device, and an image with different light and shade or black-white contrast is formed, as shown in fig. 1B, fig. 1B is a schematic illustration of a scanned image for performing flaw detection on a cable according to an embodiment of the present invention. When the laser ray penetrates through different structures of the transmission line clip, the laser ray is absorbed to different degrees, so that the amount of the laser ray reaching the flexible memory phosphor plate is different. The flexible memory phosphor plate is then removed and the image is scanned and transmitted to a computer device by a scanner, so that images with different light and shade or black and white contrast can be formed. Through the scanning image, whether the cable has the defects of wire breakage, not penetrating in place in the crimping pipe or not conforming to steel core crimping and the like can be visually analyzed.
It can be seen that the laser ray is emitted by the laser generator and is radiated to the flexible memory phosphor plate through the power transmission line clip; the flexible memory phosphor plate receives the radiation of the laser ray and stores the energy of the incident radiation of the laser ray; scanning the flexible memory phosphor plate by a scanner to obtain a scanned image; the scanning image is transmitted to the computer equipment, the computer equipment analyzes the structural defects of the power transmission line clamp according to the scanning image, wireless transmission in a complex electromagnetic environment with high voltage is avoided, collision can be borne, the flexible memory phosphorescent plate is easier to carry and operate compared with a digital flat detector, and the flexible memory phosphorescent plate is easier to carry and operate, so that laser ray flaw detection is realized more conveniently and efficiently, the power supply reliability in the flaw detection process is improved, and the cost is reduced.
Optionally, the scanner comprises a photomultiplier tube and an analog-to-digital converter, and in said scanning the flexible memory phosphor plate to obtain a scanned image, the scanner is specifically configured to:
scanning the flexible memory phosphor plate to obtain an imaging signal of the flexible memory phosphor plate;
detecting the imaging signal by the photomultiplier tube; converting the imaging signal into a digital signal by the analog-to-digital converter;
and processing the digital signal to obtain the scanning image.
The imaging signals are laser signals generated when the scanner emits laser to the flexible memory phosphor plate, the flexible memory phosphor plate releases stored energy, the imaging signals can be detected through the photomultiplier tube, then the imaging signals are converted into digital signals through the analog-to-digital converter, and finally the digital signals are processed to obtain scanning images.
Optionally, the flexible memory phosphor sheet includes a surface coating, a phosphor layer, and a base layer; the phosphor layer is disposed over the base layer, the surface coating is disposed on a surface of the phosphor layer;
the phosphor layer is used for storing the energy of the laser incident radiation in the phosphor layer when being irradiated by the laser; the stored energy is released as light proportional to the intensity of the laser radiation as it is scanned by the scanner.
FIG. 1C is a schematic view of a flexible memory phosphor sheet according to an embodiment of the present invention. Wherein the surface coating is a protective layer, typically a thin layer of transparent film, that protects the phosphor layer, the surface coating serves to protect the phosphor from physical damage. The phosphor layer is used for storing energy of incident radiation in the phosphor layer when the laser emitter irradiates the laser, and releasing the stored energy when the scanner scans the flexible memory phosphor plate to generate an imaging signal so that the scanner scans to obtain a scanned image. The base layer serves to support, assist the phosphor layer in discharging stored energy, and protect the flexible memory phosphor plate from scratches.
Optionally, the phosphor layer is formed by mixing a powdered phosphor with a binder;
the material of the phosphor comprises europium and barium fluoride halide, wherein the halide of the barium halide is a combination of bromide and iodide.
Wherein the phosphor in powder form is mixed with a binder and may be placed on the base layer at a thickness of about 0.3 millimeters. The bromide and iodide ratios are typically 85% and 15%, respectively.
The phosphor layer is specifically positioned on the barium fluorohalide phosphor layer, the phosphor is usually in a tightly dispersed fine granular shape and is an activated barium fluorohalide crystal which can be excited by light, the barium fluorohalide crystal can store a latent image of a power transmission line clamp, and the stored energy is not released until the barium fluorohalide crystal is re-excited by a laser beam emitted by a scanner, so that the scanner can scan the latent image to obtain a scanned image.
Optionally, the substrate layer includes a light reflecting layer, a conductive layer, a support layer, and a light blocking backing layer.
The light reflecting layer is used for reflecting the light emitted by the phosphor back to a scanner;
the conductive layer is composed of conductive needle-shaped crystals and is used for absorbing unreflected light and static charge;
the supporting layer is made of polyester materials.
FIG. 1D is a schematic view of another flexible memory phosphor sheet according to an embodiment of the present invention, as shown in FIG. 1D. The base layer comprises a light reflection layer, a conductive layer, a supporting layer, a shading layer and a back lining layer which are sequentially arranged from top to bottom. Wherein the light reflecting layer increases the intensity of light emitted from the phosphor by reflecting light emitted by the phosphor-released energy back to the scanner without being absorbed by the light absorbing phosphor layer. The conductive layer belongs to the light absorbing layer, is composed of conductive needle-like crystals, absorbs any unreflected light and any electrostatic charges. The support layer is made of a polyester material, has structural rigidity, and provides a foundation for the coating of all other layers. The use of polyester material may enable the stability, durability, and flexibility of the flexible memory phosphor plate structure. The light shielding layer belongs to the carbon particle layer and can prevent light from leaking from the back surface of the flexible memory phosphor plate. The backing layer is a protective layer made of a soft polymer to prevent scratching when the boards are stacked during the manufacturing process.
Optionally, the apparatus further comprises a camera bag or magazine for placing the flexible memory phosphor sheet.
In particular, the flexible memory phosphor plate can be inserted into an opaque cassette or a light-tight bag, and referring to fig. 1E, fig. 1E is a schematic view showing a cassette according to an embodiment of the present invention, wherein the cassette can have the same external dimensions as those used for film radiography, so that an X-ray apparatus for conventional radiography can be used for the flexible memory phosphor plate, thereby simplifying the transition from analog radiography to digital radiography and providing a very flexible imaging size. The flexible memory phosphor plate and the special black dark bag weigh about 0.2 kg, and the weight is greatly reduced compared with that of a digital flat panel detector.
Optionally, the apparatus further comprises a high intensity light source, wherein the high intensity light source is used to erase the flexible memory phosphor plate.
After the scanner scans the flexible memory phosphor plate to obtain a scanned image, the flexible memory phosphor plate can be erased by the high intensity light source and can be immediately reused, and the flexible memory phosphor plate can be used up to 1000 times or more depending on the application, so that the flexible memory phosphor plate can be reused.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a method for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate according to an embodiment of the present invention, which is applied to the apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate shown in fig. 1A, and the apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate includes a laser generator, a flexible memory phosphor plate, and a scanner; the method for carrying out nondestructive testing on the power transmission line clamp by applying the flexible memory phosphor plate comprises the following steps:
201. the laser generator emits laser rays which are radiated onto the flexible memory phosphor plate through the power transmission line clip.
Wherein the laser ray is an X ray or a gamma ray. The power line clamp may be, for example, a cable, and in particular, may be a communication transmission cable disposed at high altitude.
The laser emitter may be an X-ray machine, or a gamma ray emitter.
202. The flexible memory phosphor plate receives the radiation of the laser radiation and stores the energy of the incident radiation of the laser radiation.
In a specific implementation, the flexible memory phosphor plate can be placed behind a power transmission line clip, when the flexible memory phosphor plate is placed behind the power transmission line clip, the laser generator emits laser rays, the laser rays are radiated onto the flexible memory phosphor plate through the power transmission line clip, and the incident radiated energy is stored on the flexible memory phosphor plate.
Optionally, the flexible memory phosphor sheet includes a surface coating, a phosphor layer, and a base layer; the phosphor layer is disposed over the base layer, the surface coating is disposed on a surface of the phosphor layer;
the phosphor layer is used for storing the energy of the laser incident radiation in the phosphor layer when being irradiated by the laser; the stored energy is released as light proportional to the intensity of the laser radiation as it is scanned by the scanner.
Wherein the surface coating is a protective layer, typically a thin layer of transparent film, that protects the phosphor layer, the surface coating serves to protect the phosphor from physical damage. The phosphor layer is used for storing energy of incident radiation in the phosphor layer when the laser emitter irradiates the laser, and releasing the stored energy when the scanner scans the flexible memory phosphor plate to generate an imaging signal so that the scanner scans to obtain a scanned image. The base layer serves to support, assist the phosphor layer in discharging stored energy, and protect the flexible memory phosphor plate from scratches.
Optionally, the phosphor layer is formed by mixing a powdered phosphor with a binder;
the material of the phosphor comprises europium and barium fluoride halide, wherein the halide of the barium halide is a combination of bromide and iodide.
Wherein the phosphor in powder form is mixed with a binder and may be placed on the base layer at a thickness of about 0.3 millimeters. The bromide and iodide ratios are typically 85% and 15%, respectively.
The phosphor layer is specifically positioned on the barium fluorohalide phosphor layer, the phosphor is usually in a tightly dispersed fine granular shape and is an activated barium fluorohalide crystal which can be excited by light, the barium fluorohalide crystal can store a latent image of a power transmission line clamp, and the stored energy is not released until the barium fluorohalide crystal is re-excited by a laser beam emitted by a scanner, so that the scanner can scan the latent image to obtain a scanned image.
Optionally, the base layer comprises a light reflecting layer, a conductive layer, a support layer, a light shading layer, and a backing layer.
The light reflecting layer is used for reflecting the light emitted by the phosphor back to a scanner;
the conductive layer is composed of conductive needle-shaped crystals and is used for absorbing unreflected light and static charge;
the supporting layer is made of polyester materials.
The base layer comprises a light reflection layer, a conductive layer, a supporting layer, a shading layer and a back lining layer which are sequentially arranged from top to bottom. Wherein the light reflecting layer increases the intensity of light emitted from the phosphor by reflecting light emitted by the phosphor-released energy back to the scanner without being absorbed by the light absorbing phosphor layer. The conductive layer belongs to the light absorbing layer, is composed of conductive needle-like crystals, absorbs any unreflected light and any electrostatic charges. The support layer is made of a polyester material, has structural rigidity, and provides a foundation for the coating of all other layers. The use of polyester material may enable the stability, durability, and flexibility of the flexible memory phosphor plate structure. The light shielding layer belongs to the carbon particle layer and can prevent light from leaking from the back surface of the flexible memory phosphor plate. The backing layer is a protective layer made of a soft polymer to prevent scratching when the boards are stacked during the manufacturing process.
Optionally, the apparatus further comprises a camera bag or magazine for placing the flexible memory phosphor sheet.
In a specific implementation, the flexible memory phosphor plate can be inserted into an opaque film cassette or a film bag, which can have the same apparent dimensions as those used for film radiography, so that an X-ray apparatus for conventional radiography can be used for the flexible memory phosphor plate, thereby simplifying the transition from analog radiography to digital radiography and also making the imaging size very flexible. The flexible memory phosphor plate and the special black dark bag weigh about 0.2 kg, and the weight is greatly reduced compared with that of a digital flat panel detector.
Optionally, the apparatus further comprises a high intensity light source, wherein the high intensity light source is used to erase the flexible memory phosphor plate.
After the scanner scans the flexible memory phosphor plate to obtain a scanned image, the flexible memory phosphor plate can be erased by the high intensity light source and can be immediately reused, and the flexible memory phosphor plate can be used up to 1000 times or more depending on the application, so that the flexible memory phosphor plate can be reused.
203. The scanner scans the flexible memory phosphor sheet to obtain a scanned image.
The scanner scans a scanned image from the flexible memory phosphor plate by emitting a finely focused laser beam stimulus. Upon stimulation, the flexible memory phosphor plate emits blue light at an intensity proportional to the radiant energy received during irradiation by the laser emitter.
Optionally, the scanner comprises a photomultiplier tube and an analog-to-digital converter, and the scanning of the flexible memory phosphor plate by the scanner in step 203 to obtain a scanned image may comprise the steps of:
31. the scanner scans the flexible memory phosphor plate to obtain an imaging signal of the flexible memory phosphor plate;
32. detecting the imaging signal by the photomultiplier tube; converting the imaging signal into a digital signal by the analog-to-digital converter;
33. and processing the digital signal to obtain the scanning image.
The imaging signals are laser signals generated when the scanner emits laser to the flexible memory phosphor plate, the flexible memory phosphor plate releases stored energy, the imaging signals can be detected through the photomultiplier tube, then the imaging signals are converted into digital signals through the analog-to-digital converter, and finally the digital signals are processed to obtain scanning images.
204. And the scanner transmits the scanning image to computer equipment, and the computer equipment analyzes the structural defects of the wire clamps of the power transmission line according to the scanning image.
When the laser ray penetrates through different structures of the transmission line clip, the laser ray is absorbed to different degrees, so that the amount of the laser ray reaching the flexible memory phosphor plate is different. The flexible memory phosphor plate is then removed and the image is scanned and transmitted to a computer device by a scanner, so that images with different light and shade or black and white contrast can be formed. Through the scanning image, whether the cable has the defects of wire breakage, not penetrating in place in the crimping pipe or not conforming to steel core crimping and the like can be visually analyzed.
It can be seen that the laser ray is emitted by the laser generator and is radiated to the flexible memory phosphor plate through the power transmission line clip; the flexible memory phosphor plate receives the radiation of the laser ray and stores the energy of the incident radiation of the laser ray; scanning the flexible memory phosphor plate by a scanner to obtain a scanned image; the scanning image is transmitted to the computer equipment, the computer equipment analyzes the structural defects of the power transmission line clamp according to the scanning image, wireless transmission in a complex electromagnetic environment with high voltage is avoided, collision can be borne, the flexible memory phosphorescent plate is easier to carry and operate compared with a digital flat detector, and the flexible memory phosphorescent plate is easier to carry and operate, so that laser ray flaw detection is realized more conveniently and efficiently, the power supply reliability in the flaw detection process is improved, and the cost is reduced.
Fig. 3A is a schematic diagram illustrating another apparatus for performing a non-destructive inspection on a power line clip by using a flexible memory phosphor plate according to an embodiment of the present invention, wherein the apparatus for performing a non-destructive inspection on a power line clip by using a flexible memory phosphor plate includes a laser generator, a flexible memory phosphor plate, and a scanner, and the scanner includes a photomultiplier and an Analog Digital Converter (ADC). The device for carrying out nondestructive testing on the power transmission line clamp by applying the flexible memory phosphor plate also comprises a dark bag or a dark box and a high-intensity light source.
Referring to fig. 3B, fig. 3B is a schematic flow chart of another method for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate according to an embodiment of the present invention, the method being applied to an apparatus for performing a nondestructive inspection on a power transmission line clip by using a flexible memory phosphor plate, the method including:
301. the flexible memory phosphor sheet is removed from the sealed camera bag or cassette.
302. And placing the taken flexible memory phosphor plate behind the wire clamp of the power transmission line, and fixing the flexible memory phosphor plate.
303. The laser generator is provided with two pulse signals, and is started to emit laser rays which are radiated to the flexible memory phosphor plate through the power transmission line clip.
304. The flexible memory phosphor plate receives the radiation of the laser radiation and stores the energy of the incident radiation of the laser radiation.
305. Waiting for a preset time length, and turning off the laser generator; the flexible memory phosphor sheet is removed and quickly returned to the dark pouch.
306. Placing a flexible memory phosphor sheet into a scanner, the scanner scanning the flexible memory phosphor sheet to obtain an imaging signal of the flexible memory phosphor sheet.
307. Detecting the imaging signal by the photomultiplier tube; the imaging signal is converted to a digital signal by the analog-to-digital converter.
308. And the scanner processes the digital signal to obtain the scanned image.
309. And the scanner transmits the scanning image to computer equipment, and the computer equipment analyzes the structural defects of the wire clamps of the power transmission line according to the scanning image.
The flexible memory phosphor plate is adopted to carry out flaw detection on the transmission line clip, so that the flexible memory phosphor plate can normally work in the complex strong electromagnetic field and charged environment of the high-voltage tower without any interference of the strong electromagnetic field, and the success rate of final imaging display is extremely low and high, which brings great economic benefit to power supply enterprises. In addition, the flexible memory phosphor plate is low cost and short time to maintain. Most importantly, the laser transmitter can image on the flexible memory phosphor plate with less radiation to the operator by emitting fewer pulsed signals.
It should be noted that, for the specific implementation process of this embodiment, reference may be made to the specific implementation process described in the above method embodiment, and details are not described here.
According to the embodiment of the present invention, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Embodiments of the present invention also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enables a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.
Embodiments of the present invention also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus can be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above methods according to the embodiments of the present invention. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: an internal flash disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, etc.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The method for performing nondestructive testing on the power transmission line clamp by using the flexible memory phosphorescent plate is characterized by being applied to a device for performing nondestructive testing on the power transmission line clamp by using the flexible memory phosphorescent plate, wherein the device for performing nondestructive testing on the power transmission line clamp by using the flexible memory phosphorescent plate comprises the following steps: a laser generator, a flexible memory phosphor plate, a scanner; the method comprises the following steps:
the laser generator emits laser rays, and the laser rays are radiated to the flexible memory phosphor plate through the power transmission line clip;
the flexible memory phosphor plate receives the radiation of the laser ray and stores the energy of the incident radiation of the laser ray;
the scanner scans the flexible memory phosphor plate to obtain a scanned image;
and transmitting the scanning image to computer equipment, and analyzing the structural defects of the wire clamps of the power transmission line by the computer equipment according to the scanning image.
2. The method of claim 1, wherein the scanner includes a photomultiplier tube and an analog-to-digital converter, and wherein the scanner scans the flexible memory phosphor sheet to obtain a scanned image, comprising:
the scanner scans the flexible memory phosphor plate to obtain an imaging signal of the flexible memory phosphor plate;
detecting the imaging signal by the photomultiplier tube; converting the imaging signal into a digital signal by the analog-to-digital converter;
and processing the digital signal to obtain the scanning image.
3. The method of claim 1 or 2, wherein the flexible memory phosphor sheet comprises a surface coating, a phosphor layer, and a base layer; the phosphor layer is disposed over the base layer, the surface coating is disposed on a surface of the phosphor layer;
the phosphor layer is used for storing the energy of the laser incident radiation in the phosphor layer when being irradiated by the laser; the stored energy is released as light proportional to the intensity of the laser radiation as it is scanned by the scanner.
4. The method of claim 3, wherein the phosphor layer is formed by mixing a powdered phosphor with a binder;
the material of the phosphor comprises europium and barium fluoride halide, wherein the halide of the barium halide is a combination of bromide and iodide.
5. The method of claim 4, wherein the substrate layer comprises a light reflecting layer, a conductive layer, a support layer, a light blocking layer, and a backing layer.
The light reflecting layer is used for reflecting the light emitted by the phosphor back to a scanner;
the conductive layer is composed of conductive needle-shaped crystals and is used for absorbing unreflected light and static charge;
the supporting layer is made of polyester materials.
6. The method of claim 4 or 5, wherein the apparatus further comprises a camera bag or magazine for placing the flexible memory phosphor sheet.
7. The method of claim 1, further comprising:
erasing the flexible memory phosphor plate with a high intensity light source.
8. An apparatus for performing non-destructive testing on a power transmission line clip using a flexible memory phosphor plate, the apparatus comprising: a laser generator, a flexible memory phosphor plate, a scanner; wherein the content of the first and second substances,
the laser generator is used for emitting laser rays, and the laser rays are radiated to the flexible memory phosphor plate through the power transmission line clip;
the flexible memory phosphor plate is used for receiving the radiation of the laser ray and storing the energy of the incident radiation of the laser ray;
the scanner is used for scanning the flexible memory phosphor plate to obtain a scanned image; transmitting the scanned image to a computer device;
and the computer equipment is used for analyzing the structural defects of the power transmission line clamps according to the scanning images.
9. The apparatus according to claim 7, wherein the scanner comprises a photomultiplier tube and an analog-to-digital converter, the scanner being particularly adapted to, in said scanning of the flexible memory phosphor sheet to obtain a scanned image:
scanning the flexible memory phosphor plate to obtain an imaging signal of the flexible memory phosphor plate;
detecting the imaging signal by the photomultiplier tube; converting the imaging signal into a digital signal by the analog-to-digital converter;
and processing the digital signal to obtain the scanning image.
10. The apparatus of claim 8 or 9, wherein the flexible memory phosphor sheet comprises a surface coating, a phosphor layer, and a base layer; the phosphor layer is disposed over the base layer, the surface coating is disposed on a surface of the phosphor layer;
the phosphor layer is used for storing the energy of the laser incident radiation in the phosphor layer when being irradiated by the laser; the stored energy is released as light proportional to the intensity of the laser radiation as it is scanned by the scanner.
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| CN202010759027.4A CN111879786A (en) | 2020-07-31 | 2020-07-31 | Method for carrying out nondestructive testing on power transmission line clamp by applying flexible memory phosphor plate |
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| CN202010759027.4A CN111879786A (en) | 2020-07-31 | 2020-07-31 | Method for carrying out nondestructive testing on power transmission line clamp by applying flexible memory phosphor plate |
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