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  • Laser lithotripsy
    May 21, 2024
    Holmium laser is a pulsed laser with a wavelength of 2.1 μ m, which has strong safety and wide applicability compared with the commonly used extracorporeal shock wave lithotripsy and pneumatic ballistic lithotripsy. In the process of lithotripsy, stones rarely run, and the return rate is very low, so the efficiency is greatly improved. It can be directly crushed through cystoscopy, ureteroscopy and percutaneous nephroscopy, without causing tissue damage. And the holmium laser fiber is flexible, so it can effectively treat ureteric and kidney stones in any site. The study shows that the single success rate of endoscopic holmium laser lithotripsy is more than 95%, and the treatment of bladder stones can reach 100%. The procedure is non-invasive or minimally invasive, and the patient is basically painless. There is no risk of perforation, bleeding, but also the combined treatment of urinary tract tumor, ureteral polyps, stricture and so on. The specific process is soft ureteroscopic holmium laser lithotripsy is to use a fiber optic lens with about 3mm in diameter, inserted into the ureter through the urethra and bladder to the renal pelvis and renal calyx. Holmium laser fiber is used to remove and drain the upper ureteral stones and kidney stones. The use of human natural urinary tract, without making any incision in the body, is a pure urology cavity minimally invasive technique, so it is favored by patients.
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  • Fiber optic gyro technology
    May 13, 2024
    Fiber optic gyro, or FOG, is a high precision instrument using optical fiber technology. It works intuitively, like "dancing" light in a fiber. When light travels through the fiber, the propagation path in it also changes if the fiber rotates. By accurately measuring this change, the optical fiber gyro can calculate the rotation speed and direction of the optical fiber. The key of fiber optic gyro lies in its high-precision optical system and electronic signal processing system. The optical system ensures that the light travels stably through the optical fiber, while the electronic system is responsible for receiving and processing the optical signals to obtain accurate angular velocity data. Due to its high sensitivity, rapid response and long-term stability, FFG has been widely used in aviation, aerospace, navigation and other fields, providing an important means of angular velocity measurement for navigation and control systems.
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  • How to deal with optical fiber ends and linkers
    May 10, 2024
    To handle the optical fiber end and linker grinding, need to rely on advanced technology equipment and exquisite technology. First of all, the high-precision grinder is used to grind the optical fiber end slightly to ensure the smooth and smooth end surface. Next, polishing is performed with specially designed polishing tools to eliminate subtle scratches and irregularities. For the linker, a special grinding and polishing process is used to ensure its accurate docking with the optical fiber end. Throughout the process, the precise control system and on-line detection technology ensure that every step is accurate.
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  • The application case of the temperature sensor in the energy industry
    May 06, 2024
    Distributed acoustic sensing (DAS) technology realizes the real-time monitoring of the optical cable or pipeline by using the backward Rayleigh scattering signal in the optical fiber. The technology is based on a phase-sensitive optical time domain reflector (Φ -OTDR) to reconstruct and detect events such as sound or vibration by detecting the backscattering signal generated when coherent pulse light propagating through the optical fiber. In the optical cable monitoring, the DAS system can accurately restore the sound information around the optical cable, such as vehicles, man-made damage, etc., and filter through the intelligent analysis function, interference signals, to ensure the accurate identification of events. For pipeline monitoring, DAS technology can simultaneously measure various parameters, such as acoustics, temperature, pressure, strain and hole noise, and quickly and accurately detect and classify leakage events, third-party interference and other threats, providing a strong guarantee for the safe operation of the pipeline.
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  • Optical fiber macro bending loss
    Apr 22, 2024
    The loss is mainly caused by the scattering and escape of light generated by the fiber during bending.When the light is transmitted in a curved fiber, part of the light will escape from the fiber due to the changing propagation speed and direction of the light in the medium, thus causing the loss of the optical signal.In addition, the propagation of light in the optical fiber is through full reflection, and at the bend, the degree of incidence angle of light may exceed the critical angle of full reflection, resulting in scattering phenomenon, which will also cause the loss of optical signal.The size of the macrobending loss is affected by many factors, including the bending radius, the type and material of the fiber, and the outer coating of the fiber. A smaller bending radius will increase the scattering and escape of light, resulting in increased macrobending loss.The special outer coating can reduce the scattering and escape of light, thus reducing the macrobending loss.
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  • Optical fiber and cable and oil field sensing technology
    Apr 09, 2024
    The offshore operation technology of the oil and gas industry is the key to ensure the smooth development of offshore oil and gas resources.Optical fiber and cable and oil field sensing technology play a vital role. With its high-speed and large-capacity data transmission capacity, optical fiber and cable provides a stable and reliable communication guarantee for offshore operations. Through optical fiber and cable, the operation platform can obtain the monitoring data of submarine oil and gas Wells in real time to ensure the safety and efficiency of the operation process.Oilfield sensing technology realizes real-time monitoring and early warning of oil and gas Wells through various sensors arranged on the sea floor. These sensors can sense the key parameters such as pressure, temperature and flow of the wellhead, and provide decision support for operators to work to prevent potential safety risks.With the continuous development of science and technology, the offshore operation technology is also constantly innovating and improving. In the future, optical fiber and cable and oilfield sensing technology will continue to provide strong support for the deep-sea development of the oil and gas industry, and promote the sustainable utilization of offshore oil and gas resources.
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  • Fiber-optic sensing is used for the measurements
    Apr 01, 2024
    The research team at NASA's Armstrong Flight Research Center has made a breakthrough in developing a technology called a "fiber-optic sensing system."The core is to use the optical fiber as a sensing element to realize the real-time monitoring and data feedback of the structural strain, shape, temperature and other key parameters by capturing the physical characteristic changes when the optical waves are transmitted in the optical fiber. Optical fiber sensing system shows great potential in the field of aircraft research with its high sensitivity, strong anti-interference ability and excellent stability. It can accurately capture the tiny deformation and temperature fluctuations of the structure in a complex environment, providing rich and accurate data support for designers, and greatly improve the research accuracy and design efficiency. Its high-precision and long-distance sensing capabilities give it promising prospects in construction, Bridges, energy and other fields. With the continuous progress of technology, optical fiber optic sensing systems will play a key role in more fields to promote the technological innovation and development of related industries.
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  • Heat-Resistant Optical Fiber
    Mar 25, 2024
    It is well known that the optical fiber in the general sense is composed of a fiber core, cladding layer and coating layer. Among them, the fiber core, cladding determine its optical characteristics, generally with molten quartz in the environment of 2000℃ pull down, high temperature performance naturally need not say much. In the process of quartz glass pull, its surface will inevitably leave subtle cracks, used by a kinds of environmental stress, crack may rapidly expand and even break, so in the first time to help it put on a layer of sheath —— coating layer, to greatly improve its mechanical characteristics, make it more bending more tensile. It is understood that at domestic and foreign, the application scenario of high temperature resistant optical fiber is very wide. In the exploitation of oil and natural gas, the oil well temperature measuring optical cable needs to be able to withstand the underground high temperature and high pressure environment, and then it is necessary to use the high temperature resistant optical fiber. In thermal power generation, the real-time monitoring of boiler temperature and pressure also requires the stable transmission of high-temperature resistant optical fiber. In addition, in the automotive industry, high-temperature resistant optical fibers are used in on-board communication and entertainment systems to ensure the stable transmission of information in high-temperature engine and exhaust system environments. In the field of aerospace, the high temperature resistance performance of communication equipment is extremely high. The application of high temperature resistance optical fiber can improve the reliability and stability of communication equipment in high temperature environment. Polyimide (Polyimide, PI), with an excellent temperature range of-190℃ ~ + 385℃, has penetrated into every aspect of our lives since DuPont was first commoditized in 1961. For example, the flexible circuit board (FPC), often used in electronic products, is 280℃ lead-free welding and is made of polyimide; it is also made into fabric for firefighters, astronauts, and racers. In theory, 385℃ is the upper temperature limit of the polyimide, regardless of higher temperatures. High temperature resistant metal coated fiber, by coating the surface of the bare fiber with a layer of high temperature resistant metal material, such as aluminum, copper or gold, to improve the performance of the fiber in high temperature environment. This fiber performs well at extreme temperature conditions and has excellent resistance to chemical corrosion and mechanical bending. High temperature-resistant metal-coated optical fibers are widely used in areas that need to withstand high temperature and corrosive environments. For example, metal-coated optical fibers all play an important role in nuclear radiation, high-energy and strong laser transmission, welded fiber beams, and medical applications. In addition, in the field of high temperature sensing fiber, it can be used as turbine sensing fiber, oil and gas well fiber, engine sensing fiber, etc., to withstand the work demand in high temperature environment. Metal optical fibers are also often used as gas-tight optical fibers.
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  • Optical fiber sensing system——fiber optic hydrophone
    Mar 18, 2024
    Optical fiber hydrophone system is a complex sensing system, which mainly uses optical fiber sensing technology to realize the conversion, transmission and processing of underwater sound signals. As the core part of the system, the implementation process are crucial to the performance of the whole system. The components of optical fiber hydrophone mainly include wet end and dry end. The wet end, as the sensing end, consists of the optical fiber hydrophone sensor probe and the transmission optical cable used to transmit the optical signal. The sensor probe is the core component of fiber-optic hydrophones, which can receive underwater sound signals and convert them into optical signals. The dry end mainly includes the light source of optical fiber hydrophone, optical passive device, photoelectric conversion module and signal demodulation processing module. The light source is responsible for providing stable optical signals. The optical passive device is used to control the transmission and modulation of the optical signal. The photoelectric conversion module converts the received optical signal into an electrical signal, and the signal demodulation processing module demodulates and processes the electrical signals to extract useful sound information.
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  • Machine vision —— Core breakthrough point for the future development of artificial intelligence
    Mar 12, 2024
    The core technologies of machine vision include image acquisition, image pre-processing, feature extraction, target detection and recognition, etc. First, machine vision needs to obtain the image through devices such as cameras, and then preprocess the image, including denoising, enhancement, geometric correction, etc., to eliminate the interference and noise in the image. Object detection and recognition is one of the important tasks of machine vision. By training models and using machine learning algorithms, machine vision can identify and locate target objects in the image, such as faces, vehicles, product defects, and so on. This provides very valuable applications for automated production, intelligent security and intelligent transportation. The development of machine vision technology benefits from the improvement of computer computing power, the improvement of sensor technology and the development of artificial intelligence technology such as deep learning. These advances have led to significant improvements in accuracy, real-time, and adaptability.
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  • Introduction to the principle and application of industrial optical fiber endoscope
    Mar 04, 2024
    Industrial optical fiber endoscope is a kind of remote visual inspection equipment, with fine diameter, flexible characteristics, mostly used for some narrow curved test piece internal inspection, such as: turbine, small diameter process pipeline, aircraft fuselage, boiler pipeline maintenance, easy to use, is widely used. Understanding the imaging principles of industrial fiber optic endoscope can help to buy good products. Industrial fiber optic endoscopes often consof the objective lens, the mirror tube, the control unit, and the eyepiece. The guide beam providing lighting and the guide fiber optic beam responsible for transmission are all running through the mirror tube. The imaging core of optical fiber mirror lies in the optical fiber beam, and its imaging principle can be understood from the perspective of local single optical fiber and overall optical beam.
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  • The Future of AI Agents: A New for Computer Vision?
    Feb 22, 2024
    Bill Gates predicts that within five years, AI agents will become increasingly popular, and users will have their own dedicated AI agents. An AI agent is a system based on large-scale language models that has the ability to perceive, understand, and execute tasks autonomously. The ability of autonomous perception heavily relies on the development and application of computer vision. As every user is expected to have their own specialized AI agent in the future, this expanding market will create new opportunities for downstream industries, including the demand for optical fiber components in machine vision.
    hot Tags : AI Agent fiber optics
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