CN114236672A - Optical fiber, preparation method of optical fiber and laser detection system - Google Patents
Optical fiber, preparation method of optical fiber and laser detection system Download PDFInfo
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 73
- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 49
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 21
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000523 sample Substances 0.000 claims abstract description 21
- 229940119177 germanium dioxide Drugs 0.000 claims abstract description 14
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 12
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000010248 power generation Methods 0.000 claims description 18
- 229910052810 boron oxide Inorganic materials 0.000 claims description 17
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 17
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 17
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 17
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 17
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 17
- 239000010453 quartz Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
- A61B1/0017—Details of single optical fibres, e.g. material or cladding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0084—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
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Abstract
The embodiment of the application belongs to the fields of optics, materials and detection, and relates to an optical fiber and a preparation method thereof. The application also relates to a laser detection system, a computer control processing device, a data comparison library, a laser probe, an adapter piece and the optical fiber. In the technical scheme that this application provided, laser detection system adopts this optic fibre, the oxide in the fibre core can reduce the decay of light signal, praseodymium element makes this optic fibre have laser oscillation and the phenomenon of light amplification, do benefit to the luminous energy of replenishment loss in transmission process, with the intensity of guaranteeing light signal, germanium dioxide or germanium can reduce the refracting index, prevent the light scattering that arouses because of the refractive index change, optical loss, increase the definition of detecting the position image, computer control processing apparatus carries out contrastive analysis to the image of detecting the position simultaneously, the supplementary pathological change that discovers, the efficiency and the exactness of increase judgement.
Description
Technical Field
The application relates to the technical field of optics, materials and detection, in particular to an optical fiber and a preparation method thereof, and further relates to a laser detection system.
Background
Health is closely related to people's life, and along with the development of science and technology, the medical level is also steadily improving.
In medical diagnosis, since most of the lesions are located inside the human body, it is necessary to observe the lesion site with the aid of an endoscopic apparatus. Among them, devices using laser as a detection means are widely used, and in such devices, an optical fiber is used as a medium for propagating laser, which is very important for the detection accuracy. Although various optical fibers beneficial to medical endoscopy have been researched, the relevant characteristics of the optical fibers can be further improved so as to more accurately assist in judging the condition of a patient, thus performing symptomatic treatment and improving the medical level.
Disclosure of Invention
The technical problem to be solved by the embodiment of the application is how to obtain the optical fiber and the detection equipment which are more favorable for detection so as to improve the detection precision.
In order to solve the above technical problem, an embodiment of the present application provides an optical fiber, which adopts the following technical solutions: the optical fiber comprises a fiber core and a cladding, wherein the fiber core comprises, by mass, 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of X, wherein X is germanium dioxide or germanium.
Further, the fiber core comprises, by mass, 995 parts of quartz, 1 part of sodium oxide, 1 part of boron oxide, 1 part of potassium oxide, 1 part of praseodymium and 1 part of X.
Further, the diameter of the fiber core is 50um-400 um.
In order to solve the above technical problem, an embodiment of the present application further provides a method for manufacturing an optical fiber, which adopts the following technical scheme: the method comprises the following steps: the preparation method comprises the following raw materials in parts by weight: 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of germanium dioxide or germanium; putting the raw materials into a vacuum stirrer, and mixing and stirring the raw materials uniformly; putting the uniformly mixed raw materials into a cylindrical cavity of a mold, and then sending the mold into a high-temperature oven for baking; and taking out after cooling to obtain the cylindrical optical fiber.
Further, the inner diameter of the cylindrical cavity of the mold is 50um-400um, preferably 50um-200 um; the step of sending the die into a high-temperature oven for baking comprises the following steps: and (3) sending the die into a high-temperature oven at 1755 +/-5 ℃ for baking for 5.5-6.5 h, wherein the baking time is preferably 6 h.
In order to solve the above technical problem, an embodiment of the present application further provides a laser detection system, which adopts the following technical solutions: the laser detection system comprises a computer control processing device, a data comparison library, a laser probe, an adapter and the optical fiber; the data comparison library and the laser are both connected with a computer control processing device, the laser is connected with one end of the optical fiber through the adapter, and the other end of the optical fiber is connected with the laser probe; the laser is used for emitting an incident light signal according to an instruction sent by the computer control processing device; the adapter is used for transmitting an incident light signal emitted by the laser to the optical fiber; the laser probe is used for emitting an incident light signal of the optical fiber to a detection part and receiving a reflected light signal generated by the detection part; the computer control processing device receives the reflected light signals which are sequentially transmitted back through the laser probe, the optical fiber, the adapter piece and the laser, converts the reflected light signals into detection images, calls standard images of the same part stored in the data comparison library for comparison, and outputs comparison results.
Further, the adaptor is a cylinder, and the adaptor comprises, by mass, 630 parts of epoxy resin 570-.
And the system further comprises a stereo microscope, wherein the stereo microscope is connected with the computer control processing device, and the image of the detection part is observed through the stereo microscope.
The system further comprises a power generation device, an energy storage device, an electric control system and a lighting system which are sequentially connected, wherein the computer control processing device and the laser are both connected with the electric control system, and the electric control system is used for distributing power to the lighting system, the computer control processing device and the laser; the energy storage device is connected with the power generation device and used for storing electric energy output by the power generation device and supplying power to the illumination system, the computer control processing device and the laser through the electric control system.
Further, the laser is a vertical cavity surface emitting laser.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
the laser detection system of the application adopts the optical fiber, and the fiber core of the optical fiber is made of silicon dioxide (SiO)2) Mixing with sodium oxide (Na)2O), boron oxide (B)2O3) Potassium oxide (K)2O), the core has a lower softening point than that of the quartz glass core, and the difference between the refractive indexes of the core and the cladding is large, so that the attenuation of optical signals can be reduced, and the optical fiber core is favorable for accurate peeping in an optical fiber used in medical treatment.
Moreover, the fiber core raw material also comprises praseodymium (Pr) which is a rare earth element, so that the optical fiber has the phenomena of laser oscillation and light amplification, is favorable for supplementing the light energy lost in the transmission process, ensures the intensity of light signals, increases the definition of images of the detection part, is also favorable for amplifying the detection part, is favorable for observing the change of a complete appearance, is convenient for medically observing the actual condition of the internal part, and realizes high efficiency and accuracy.
And the raw material of the fiber core also comprises germanium dioxide or germanium, so that the refractive index can be reduced, and light scattering and light loss caused by refractive index change can be prevented, thereby increasing the image definition of a detection part.
In addition, the laser detection system transmits an incident light signal to a detection part through the laser, the adapter, the optical fiber and the laser probe, and a reflected light signal generated by the detection part is detected by the laser probe and is transmitted back to the computer control processing device through the optical fiber, the adapter and the laser in sequence, so that an image of the detection part is obtained; the computer control processing device calls the standard images of the same part stored in the data comparison library according to the observed images of the detected part, compares the images of the detected part with the standard images of the same part and outputs a comparison result. Therefore, the detection device can assist in finding whether the detected part has pathological changes or not, increase the accuracy of judgment, improve the health detection means, facilitate accurate analysis of the etiology and improve the medical level.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of one of the connections of a laser detection system in an embodiment of the present invention;
FIG. 2 is a main flow chart of a method for manufacturing an optical fiber according to an embodiment of the present invention.
Reference numerals:
1. a computer control processing device; 2. according to a comparison library; 3. a laser; 4. a laser probe; 5. an optical fiber; 6. an adapter; 7. a power generation device; 8. an energy storage device; 9. an electronic control system; 10. an illumination system.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
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 application. 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.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
Example one of an optical fiber of the present application
The embodiment provides an optical fiber, which comprises a fiber core and a cladding, wherein the fiber core is a solid cylinder made of soft transparent light guide material, and the fiber core comprises, by mass, 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of X, wherein X is germanium dioxide or germanium.
For example, the fiber core comprises the following components in parts by mass: 995 parts of quartz, 1 part of sodium oxide, 1 part of boron oxide, 1 part of potassium oxide, 1 part of praseodymium and 1 part of X.
Specifically, the core in this embodiment is in Silica (SiO)2) Mixing with sodium oxide (Na)2O), boron oxide (B)2O3) Potassium oxide (K)2O), the core has a lower softening point than that of the quartz glass core, and the difference between the refractive indexes of the core and the cladding is large, so that the attenuation of optical signals can be reduced, and the optical fiber core is favorable for accurate peeping in an optical fiber used in medical treatment.
Moreover, the fiber core raw material also comprises praseodymium (Pr) which is a rare earth element, so that the fiber has the phenomena of laser oscillation and light amplification, is favorable for supplementing the light energy lost in the transmission process, ensures the intensity of light signals, increases the definition of images of the detection part, is also favorable for amplifying the detection part, is favorable for observing the change of the overall appearance, is convenient for medically observing the actual condition of the internal part, and realizes high efficiency and accuracy.
Furthermore, the core material further contains germanium dioxide or germanium, which can reduce the refractive index and prevent light scattering and light loss due to refractive index variation, thereby increasing the image clarity of the detected portion.
Second embodiment of an optical fiber of the present application
The optical fiber provided by this embodiment is further designed based on the first embodiment of the optical fiber, specifically, the diameter of the core is 50um to 400 um. The fiber core with the diameter range is easy to manufacture, and the fiber core with the small diameter has high flexibility and can smoothly enter a human body without damaging tissues in the human body, so that the aim of accurately seeing the fiber core is fulfilled.
Table 1 below is a table of optical losses for cores of different diameters containing a praseodymium component
TABLE 1
Table 2 below is a table of optical losses for cores of different diameters without the praseodymium component
TABLE 2
As can be seen from the optical loss percentages in tables 1 and 2, the optical loss can be greatly reduced by adding praseodymium to the core. Also, the optical loss increases with the increase of the core diameter, that is, the smaller the core diameter, the smaller the optical loss, and therefore, the core diameter is preferably 50um to 200 um.
Embodiment one of the manufacturing method of an optical fiber of the present application
Referring to fig. 2, the present embodiment provides a method for manufacturing an optical fiber, the method including the steps of:
s1, preparing raw materials according to the mixture ratio;
specifically, the raw materials are prepared according to the mass parts as follows: 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of germanium dioxide or germanium;
s2, putting the raw materials into a vacuum stirrer, and mixing and stirring the raw materials uniformly;
s3, placing the uniformly mixed raw materials into a cylindrical cavity of a mold, and then sending the mold into a high-temperature oven for baking;
and S4, cooling and taking out to obtain the cylindrical optical fiber.
Example two of a method of making an optical fiber of the present application
The method for manufacturing an optical fiber provided in this embodiment is further designed on the basis of the first embodiment of the method for manufacturing an optical fiber, and specifically includes:
the preparation method comprises the following raw materials in parts by weight: 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of germanium dioxide or germanium; for example, the following raw materials are prepared in parts by mass: 995 parts of quartz, 1 part of sodium oxide, 1 part of boron oxide, 1 part of potassium oxide, 1 part of praseodymium and 1 part of germanium dioxide or germanium;
putting the raw materials into a vacuum stirrer, vacuumizing and stirring for 40-50 minutes, mixing and stirring the raw materials uniformly, and preferably vacuumizing and stirring for 45 minutes;
putting the uniformly mixed raw materials into a cylindrical cavity of a die, and then sending the die into a high-temperature oven at 1755 +/-5 ℃ for baking for 5.5-6.5 h, wherein the baking time is preferably 6 h; the inner diameter of the cylindrical cavity of the die is 50-400 um, preferably 50-200 um;
and taking out after cooling to obtain the cylindrical optical fiber.
After the cylindrical optical fiber is obtained, the obtained cylindrical optical fiber needs to be checked, and the standard of passing the check is that the cylindrical optical fiber is observed by a microscope, has no bubbles and is transparent and integrated.
The mold is divided into two parts, and before the mold is used, the two parts of the mold are clamped to form a cylindrical cavity; and the high-temperature oven is provided with a mould frame, and the mould is placed on the mould frame of the high-temperature oven for baking.
Embodiment one of a laser detection system
The embodiment provides a laser detection system, which comprises a computer control processing device 1, a data comparison library 2, a laser 3, a laser probe 4, an adapter 6 and the optical fiber 5.
Referring to fig. 1, the data comparison library and the laser are both connected with a computer control processing device, the laser is connected with one end of the optical fiber through the adapter, and the other end of the optical fiber is connected with the laser probe; the laser is used for emitting an incident light signal according to an instruction sent by the computer control processing device; the adapter is used for transmitting an incident light signal emitted by the laser to the optical fiber; the laser probe is used for emitting an incident light signal of the optical fiber to a detection part and receiving a reflected light signal generated by the detection part; the computer control processing device receives the reflected light signals which are sequentially transmitted back through the laser probe, the optical fiber, the adapter piece and the laser, converts the reflected light signals into detection images, calls standard images of the same part stored in the data comparison library for comparison, and outputs comparison results.
Specifically, the laser 3 transmits an incident light signal after receiving an instruction sent by the computer control processing device 1, the incident light signal is transmitted to the optical fiber 5 through the adapter 6, then is input to the laser probe 4 through the optical fiber 5, and is emitted from the laser probe 4 to reach a detection part, a reflected light signal generated by the detection part is detected by the laser probe 4 and is output from the laser probe 4, the reflected light signal is sequentially transmitted to the computer control processing device 1 through the optical fiber 5, the adapter 6 and the laser 3, a photoelectric/electro-optical conversion module is arranged in the computer control processing device 1, and the reflected light signal is converted through the photoelectric/electro-optical conversion module, so that an image of the detection part is obtained; the computer control processing device 1 can call the data stored in the data comparison library 2, the computer control processing device 1 calls the standard image of the same part stored in the data comparison library 2 according to the observed image of the detected part, the computer control processing device 1 compares the image of the detected part with the standard image of the same part, and displays the shape, the size parameters and whether the detected part is abnormal or not.
Therefore, the detection device can assist in finding whether the detected part has pathological changes or not, increase the accuracy of judgment, improve the health detection means, facilitate accurate analysis of the etiology and improve the medical level.
The computer control processing device 1 can adopt a quantum computer control processing device or an electronic computer control processing device, and has high processing speed. The computer control processing device 1 is a core component of the laser detection system, and collects and stores the images of the detected parts in a storage module to assist subsequent judgment. The computer control processing device 1 can send an opening or closing instruction to the laser 3, and the laser 3 performs corresponding actions according to the instruction.
Second embodiment of a laser detection system of the present application
The laser detection system provided by the embodiment is further optimized to be that the adaptor 6 is a cylinder on the basis of the first embodiment of the laser detection system, and the thickness of the adaptor 6 is 1.02mm-0.98 mm. Moreover, the components of the adapter piece comprise, by mass, 570-630 parts of epoxy resin, 375-415 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of X, wherein X is germanium dioxide or germanium.
For example, the adaptor 6 comprises the following components in parts by mass: 600 parts of epoxy resin, 395 parts of quartz, 1 part of sodium oxide, 1 part of boron oxide, 1 part of potassium oxide, 1 part of praseodymium and 1 part of X.
In particular, the function of the adapter element 6 is to receive the optical signal emitted by the laser 3 and to transmit it completely to the optical fiber 5.
In the adaptor 6, except for epoxy resin, other components are the same as those of the fiber core, so that the optical signal is not lost, and the transmission of the optical signal is facilitated. The color of the epoxy resin is transparent, so that the interference of external signals to laser can be prevented, the light has a sealing protection effect, the transmission of the laser is facilitated, and the epoxy resin is favorable for curing.
In addition, the adaptor 6 and the optical fiber 5 can be connected together by a clamping groove or white curing glue.
Furthermore, the method of manufacturing the adaptor 6 comprises the steps of:
the preparation method comprises the following raw materials in parts by weight: 630 portions of epoxy resin 570, 415 portions of quartz 375, sodium oxide 0.95-1.05 portions, boron oxide 0.95-1.05 portions, potassium oxide 0.95-1.05 portions, praseodymium 0.95-1.05 portions and X0.95-1.05 portions;
putting the raw materials into a vacuum stirrer, vacuumizing for 45 minutes, and mixing and stirring the raw materials uniformly;
putting the uniformly mixed raw materials into a cylindrical cavity of a mold, then sending the mold onto a mold frame of a high-temperature oven, and baking for 6 hours at the temperature of 1755 +/-5 ℃;
and taking out after cooling to obtain the adapter.
After the adapter is obtained, the adapter needs to be inspected, and the qualified inspection standard is that the adapter is observed by a microscope, has no bubbles and is transparent and integrated.
Wherein the height of the cylindrical cavity of the die is 1.02mm-0.98 mm.
Third embodiment of a laser detection system of the present application
The laser detection system provided by the embodiment further comprises a stereo microscope, wherein the stereo microscope is connected with the computer control processing device, and the stereo microscope is used for observing the image of the detection part. So that the user can observe the stereo overall view of the detection part, thereby increasing the accuracy of judgment.
Embodiment four of a laser detection system of the present application
The laser detection system provided by this embodiment further includes a power generation device 7, an energy storage device 8, an electronic control system 9, and an illumination system 10, which are connected in sequence.
Referring to fig. 1, the computer control processing device 1 and the laser 3 are both connected with an electronic control system 9, and the electronic control system is used for distributing power to the lighting system, the computer control processing device and the laser; the energy storage device 8 is connected with the power generation device and used for storing the electric energy output by the power generation device 7 and respectively supplying power to the illumination system 10, the computer control processing device 1 and the laser 3 through the electric control system 9.
Specifically, this power generation facility 7 adopts fan power generation facility 7 or solar power generation facility 7, and fan power generation facility 7 leans on wind energy to generate electricity, and solar power generation facility 7 leans on solar energy to generate electricity, all belongs to clean power generation mode, and the electricity generation is stable environmental protection, and is pollution-free, healthy environmental protection, does benefit to the user and breathes pollution-free air. The illumination system 10 illuminates the entire system for medical observation.
Embodiment five of the laser detection system of the present application
The laser detection system provided by this embodiment is further designed on the basis of the first to fourth embodiments of the laser detection system, specifically, the laser 3 is a vertical cavity surface emitting laser, and an optical signal emitted by the vertical cavity surface emitting laser is not scattered, so that light is not lost, which is more favorable for transmission and increases the detection accuracy.
Also, the light source hole of the laser has a length of 80um and a width of 80 um. I.e. the laser light emitted by the laser, has a square cross section of 80um x 80 um.
Embodiments of a method for installing a laser detection system
The embodiment provides an installation method of a laser detection system, which comprises the following steps:
respectively installing a power generation device 7, an energy storage device 8, an electric control system 9 and a lighting system 10, and sequentially connecting the power generation device 7, the energy storage device 8, the electric control system 9 and the lighting system 10;
fixing the computer control processing device 1 and the data comparison base 2, and connecting the electric control system 9 and the data comparison base 2 with the computer control processing device 1;
fixing the laser 3, installing an adapter 6 at a laser exit hole of the laser 3, enabling the axis of the laser exit hole to be parallel to the axis of the adapter 6, connecting the optical fiber 5 to the adapter 6, enabling the axis of the adapter 6 to be parallel to the axis of the optical fiber 5, and connecting the laser probe 4 to the optical fiber 5.
After the above steps are completed, checking whether the connection of each part is correct, after no error is confirmed, starting the power supply of the electronic control system 9 and the computer control processing device 1, starting the self-checking program of the computer control processing device 1, and if no error is confirmed, indicating that the installation is finished.
The self-test program of the computer control processing device 1 is that the computer control processing device 1 calls the part image of the known condition to compare with the standard image of the same part in the data comparison library 2, the computer control processing device 1 judges whether the part of the known condition is abnormal or not, and if the judgment result is in accordance with the known condition, the computer control processing device 1 is normal.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. The optical fiber comprises a fiber core and a cladding, and is characterized in that the fiber core comprises, by mass, 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of X, wherein X is germanium dioxide or germanium.
2. The optical fiber of claim 1, wherein the core comprises, in parts by mass, 995 parts quartz, 1 part sodium oxide, 1 part boron oxide, 1 part potassium oxide, 1 part praseodymium, and 1 part X.
3. An optical fiber according to claim 1, wherein the core has a diameter of 50um to 400 um.
4. A method of making an optical fiber, comprising the steps of:
the preparation method comprises the following raw materials in parts by weight: 980-1005 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of germanium dioxide or germanium;
putting the raw materials into a vacuum stirrer, and mixing and stirring the raw materials uniformly;
putting the uniformly mixed raw materials into a cylindrical cavity of a mold, and then sending the mold into a high-temperature oven for baking;
and taking out after cooling to obtain the cylindrical optical fiber.
5. A method for making an optical fiber as claimed in claim 3, wherein the inner diameter of the cylindrical cavity of the mold is 50um to 400 um; the step of sending the die into a high-temperature oven for baking comprises the following steps:
and (3) sending the die into a high-temperature oven at 1755 +/-5 ℃ for baking for 5.5-6.5 h.
6. A laser detection system comprising a computer control processing device, a data comparison library, a laser probe, an adapter and an optical fiber according to any one of claims 1 to 3;
the data comparison library and the laser are both connected with a computer control processing device, the laser is connected with one end of the optical fiber through the adapter, and the other end of the optical fiber is connected with the laser probe;
the laser is used for emitting an incident light signal according to an instruction sent by the computer control processing device;
the adapter is used for transmitting an incident light signal emitted by the laser to the optical fiber;
the laser probe is used for emitting an incident light signal of the optical fiber to a detection part and receiving a reflected light signal generated by the detection part;
the computer control processing device receives the reflected light signals which are sequentially transmitted back through the laser probe, the optical fiber, the adapter piece and the laser, converts the reflected light signals into detection images, calls standard images of the same part stored in the data comparison library for comparison, and outputs comparison results.
7. The laser detection system as claimed in claim 6, wherein the adaptor is a cylinder, and the adaptor comprises, in parts by mass, 570-630 parts of epoxy resin, 375-415 parts of quartz, 0.95-1.05 parts of sodium oxide, 0.95-1.05 parts of boron oxide, 0.95-1.05 parts of potassium oxide, 0.95-1.05 parts of praseodymium and 0.95-1.05 parts of X, wherein X is germanium dioxide or germanium dioxide.
8. The laser detection system of claim 6, further comprising a stereomicroscope connected to the computer control and processing device, wherein the stereomicroscope is used to observe the image of the detection site.
9. The laser detection system according to claim 6, further comprising a power generation device, an energy storage device, an electronic control system and a lighting system, which are connected in sequence, wherein the computer control processing device and the laser are both connected with the electronic control system, and the electronic control system is used for distributing power to the lighting system, the computer control processing device and the laser; the energy storage device is connected with the power generation device and used for storing electric energy output by the power generation device and supplying power to the illumination system, the computer control processing device and the laser through the electric control system.
10. A laser detection system as claimed in any one of claims 6 to 9 wherein the laser is a vertical cavity surface emitting laser.
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| CN202111552400.XA CN114236672A (en) | 2021-12-17 | 2021-12-17 | Optical fiber, preparation method of optical fiber and laser detection system |
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| US4106850A (en) * | 1977-04-04 | 1978-08-15 | Bell Telephone Laboratories, Incorporated | Optical fiber with graded index core and pure silica cladding |
| CN104176941A (en) * | 2014-08-18 | 2014-12-03 | 苏州新协力环保科技有限公司 | Novel hermetically-coated optical fiber |
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| CN113598710A (en) * | 2021-08-11 | 2021-11-05 | 上海理鑫光学科技有限公司 | Optoacoustic endoscopic device |
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| US4106850A (en) * | 1977-04-04 | 1978-08-15 | Bell Telephone Laboratories, Incorporated | Optical fiber with graded index core and pure silica cladding |
| CN104176941A (en) * | 2014-08-18 | 2014-12-03 | 苏州新协力环保科技有限公司 | Novel hermetically-coated optical fiber |
| CN105762915A (en) * | 2016-02-29 | 2016-07-13 | 成都乐维斯科技有限公司 | Hybrid fiber current transformer power supply circuit based on solar power supply |
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