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. Main components of the fiber-optic hydrophone: a) sensor prob: Optical fiber: a core element in the sensor probe that transforms acoustic signals into optical signals. The materials, diameter, length and other parameters of the optical fiber are carefully designed to optimize its sensing performance. Sensing diaphragm: usually located at the end of the fiber and is very sensitive to underwater sound pressure signals. When the sound wave acts on the diaphragm, it will produce deformation, and then cause the change of the phase, intensity and other parameters of the light in the optical fiber. Seal construction: Ensure that the sensor resists water shock and corrosion under water while keeping the interior dry and stable. b) illuminant: Laser: produce stable, high quality beam for propagation in fiber. The type of laser and the choice of output power directly affect the sensitivity and dynamic range of the fiber hydrophone. Drive circuit: Provide a stable current and voltage for the laser to ensure its stable operation for a long time. C) Optical passive devices: Coupler: it is used to effectively couple the light generated by the light source to the optical fiber, while realizing the distribution and combination of optical signals. Wave division multiplexer: used to transmit multiple wavelengths in a single fiber to improve the transmission capacity of the fiber. Filter: used to filter noise and stray light and improve signal to noise ratio. And d) the photoelectric conversion module: Photodetector: to convert the received optical signal into electrical signals. The response speed and sensitivity of photodetectors directly affect the performance of the system. Preamplifier: to amplify the weak electrical signal output by the photodetector to facilitate subsequent signal processing. E) Signal demodulation processing module: Demodulation circuit: according to the specific demodulation algorithm, the signal output by the photoelectric conversion module is demodulated to restore the original sound signal. Data acquisition and processing unit: digitize, store and analyze the demodulated signal to extract useful sound information. Fiber-optic hydrophones may also include some auxiliary components, such as temperature sensors, pressure sensors, etc., which are used to monitor and compensate for the impact of environmental conditions on system performance. The design and manufacture of these components requires a high degree of precision and reliability to ensure that fiber optic hydrophones work stably and long term in harsh underwater environments. At the same time, with the continuous development of optical fiber sensing technology, the performance of these components is also constantly improving, providing strong technical support for optical fiber hydrophones in a wider range of application fields. In the preparation process, optical fiber and metal filament and other components are accurately processed and assembled according to the specific process requirements to form optical fiber hydrophones with specific structure and performance. The installation process of fiber-optic hydrophones is a relatively complex and requires a highly specialized operation. Fiber-optic hydrophones need to be deployed in suitable locations underwater according to specific application scenarios and requirements to ensure that they can effectively receive and process sound signals. Some key issues also need to be considered in practical application, such as the stability, sensitivity and anti-interference ability of the system. In order to improve the performance of the system, some advanced technical means can be adopted, such as optimizing the structure design of the optical fiber hydrophone, improving the stability and output power of the light source, and improving the signal demodulation algorithm. Fiber-optic hydrophones have excellent stability. The optical fiber materials used have extremely high intrinsic safety and reliability. This characteristic makes the fiber optic hydrophone to maintain stable performance for a long time and is not easy to fail. In addition, the fiber optic hydrophone also has good system stability and can maintain normal operation in a variety of harsh environments. The sensitivity of the fiber-optic hydrophones is extremely high. Its sensor probe is very sensitive to underwater sound pressure signals, and even small sound changes can be accurately captured and converted into light signals. This high sensitivity allows fiber optic hydrolisteners to capture weak sound signals in the underwater environment, enabling accurate detection and identification of underwater targets. At the same time, the fiber optic hydrophone also has the characteristics of good array sensitivity consistency, to ensure the accuracy and consistency of each channel signal. Fiber-optic hydrophone has a powerful anti-interference capability. Because its signal sensing and transmission are both light as the carrier, the electromagnetic interference below a few hundred MHz has very little effect on it. This means that fiber optic hydrophones can work properly in complex underwater environments without being affected by electromagnetic interference. In addition, the fiber optic hydrophone also has the characteristics of corrosion resistance, high temperature resistance, and can maintain stable performance in a variety of harsh environments. In general, the fiber optic hydrophone system is a highly integrated and intelligent system, and the composition and implementation process of its components are of great significance for achieving efficient and accurate underwater sound signal detection and processing. With the continuous development and progress of optical fiber sensing technology, the application prospect of fiber optic hydrophone system in ocean exploration and underwater communication will be broader.

Machine vision is a kind of technology that uses computers and cameras to imitate the human vision system for image analysis and processing. It combines knowledge in the fields of computer science, image processing, pattern recognition, and artificial intelligence to enable machines to "see" and understand images, providing an important basis for automation and intelligence in the real world. The primary goal of machine vision is to enable computers to understand and analyze images as humans do. The image data obtained through the camera can be processed and interpreted in the computer, so as to realize automatic control, quality detection, object recognition, object tracking and other functions. It can be widely used in industrial automation, intelligent monitoring, medical diagnosis, traffic management and other fields. 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 pre-process the image, including denoising, enhancement, geometric correction, etc., to eliminate interference and noise in the image. Next, machine vision will use the image processing and pattern recognition algorithm to extract the feature information in the image. These feature information can be the edge, texture, color, etc. Through the analysis of these features, the detection, classification and recognition of goals can be realized. 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. In addition, machine vision can also perform image analysis and understanding. Through the semantic segmentation, object tracking and other technologies, the understanding and interpretation of different regions and objects in the image can be realized, and then provide the basis for decision-making and control. 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. Although machine vision has achieved remarkable application results in many fields, there are still some challenges and problems. For example, complex scenes, lighting changes, occlusion and other factors may affect the performance of the machine vision system. Therefore, researchers and engineers need to continuously improve algorithms and technologies to improve the robustness and performance of machine vision systems. In short, machine vision, as an important technology, is constantly changing the way we live and work. It combines technologies such as image processing, pattern recognition and artificial intelligence to allow machines to "see" and understand images like people. With the further development of technology, machine vision will play an important role in more fields, creating a more intelligent, convenient and efficient living environment for human beings.

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. The imaging principle of industrial fiber optic endoscopy is based on a combination of optical and fiber optic technology, which allows the transmission of images through optical fibers, enabling visual detection in environments that are difficult to observe directly. This technology is widely used in aviation, automobile, electric power, chemical industry and other fields, providing a convenient and efficient means for the internal detection and maintenance of industrial equipment. First, let's take a look at the basic structure and characteristics of the optical fiber. The optical fiber consists of three parts: fiber core, cladding and coating. The core is the core part of the optical fiber that transmits the optical signal; the cladding protects the optical signal and prevents its leakage; the coating is the outermost protective layer, increasing the durability and flexibility of the fiber. The characteristics of optical fiber include low loss, high bandwidth, and strong anti-interference ability, which makes optical fiber an ideal choice for long-distance, high-speed, and large-capacity data transmission. In industrial optical fiber endoscopes, optical fibers are used to transmit light signals reflected back from the inside of the device. The probe portion of the endoscope is usually equipped with one or more fiber beams that introduce light signals from the external light source into the device and collect light signals reflected back from the inside of the device. These optical signals are transmitted to the viewing end through the fiber beam, which is then converted into a visual image through the imaging system. At the core of the imaging system is the image sensor, which converts the received optical signal into an electrical signal, which is then processed through an electronic amplifier and finally output to the display. Depending on the type of sensor, the imaging system can be divided into two types: a charge-coupled device (CCD) sensor, and the other is a complementary metal oxide semiconductor (CMOS) sensor. Both sensors have advantages and disadvantages, but both achieve high-quality image output. In addition to the imaging system, industrial fiber-optic endoscopes require an optical system to focus and adjust the light. The optical system includes components such as an objective, an eyepiece and a focusing mechanism, which together ensure that the light can be accurately focused on the sensor to obtain a clear, accurate image. In practical application, industrial optical fiber optic endoscope also needs to consider the influence of environmental factors. For example, the imaging quality of an endoscope may be affected in harsh environments such as high temperature, high humidity, and strong electromagnetic interference. Therefore, the design needs to take the corresponding protective measures, such as the use of high temperature, moisture, anti-interference optical fiber and sensors, to ensure that the endoscope can work normally in various environments. In addition, the industrial fiber-optic endoscope also needs to consider the problem of image processing. Because the transmission process may be affected by noise, distortion and other factors, it is necessary to pre-processing, enhancement and recovery of the received images to improve the clarity and contrast of the image. These image processing technologies include filtering, denoising, enhancement, segmentation, which can help us to better identify and analyze the information in the image. In conclusion, the imaging principle of industrial fiber optic endoscope is based on the combination of optical and fiber optic technology, through which images are transmitted through optical fibers and processed by the imaging system to obtain visual images. In practical applications, the influence of environmental factors and the problem of image processing are considered to ensure that the endoscope works properly and output high-quality images. With the continuous development of technology, industrial fiber optic endoscope will be applied and promoted in more fields.

Dear customers and all staff, As the year 2024 approaches, in accordance with the national holiday regulations and taking into consideration the company's situation, after thorough discussion, the holiday schedule is as follows: A holiday will be observed from Tuesday, February 6th, 2024, to Sunday, February 18th, 2024, a total of 13 days. Work will resume on Sunday, February 4th, 2024, and Monday, February 19th, 2024. We would like to take this opportunity to wish all our valuable customers and employees a happy holiday and good health. Hecho Technology Co., Ltd., Nanjing Thursday, February 1th, 2024

Dear customers and all staff, As New Year's Day in 2024 approaches, in accordance with national holiday regulations and considering the company's situation, after careful consideration, the holiday arrangements are as follows: The company will be closed from 30th, 2023 (Saturday) to January 1st, 2024 (Monday), for total of 3 days. Normal working hours will resume on January 2nd, 2024 (Tuesday). We would like to take this opportunity to wish our valued customers and all staff a happy holiday and good health! Nanjing Hecho Technology Co., Ltd. December 28th, 2023, Thursday.

Fiber lasers doped with erbium are widely used in cosmetic surgery, where their laser beams can deliver energy in a fractional pattern to stimulate collagen and elastin fibers, promoting skin self-repair and reconstruction. These lasers offer advantages of high efficiency, safety, versatility, and fast recovery, providing patients with an effective treatment option for improving various skin issues. The working principle involves emitting small laser beams through optical fibers onto the skin, creating multiple tiny thermal injury zones. This stimulates the skin's self-repair mechanism, promoting collagen regeneration and achieving skin rejuvenation and beautification effects. Nanjing Hecho Technology specializes in the research and development of medical laser fibers, with related products extending into the field of medical aesthetics. They cater to various lasers such as thulium, holmium, and erbium lasers, showcasing their capabilities in various applications.

In recent years, in fields such as heavy machinery, shipbuilding, and large steel structures, a large number of parts require thick plate cutting. These parts have various specifications and shapes, some of which require high precision. Traditional processing methods like flame cutting and plasma cutting suffer from low processing efficiency, poor accuracy, and significant material waste, which cannot meet the current manufacturing requirements. The emergence of ultra-high-power kilowatt-level fiber laser cutting provides the most effective solution to address the problems in thick plate cutting. The thicker the metal material, the higher the laser cutting power required. When cutting thin plates, higher laser power leads to faster cutting speeds, thereby achieving higher processing efficiency. High-power laser cutting offers four advantages: faster cutting speed, stronger cutting capability, lower operating costs, and broader application range. It finds extensive applications in metal processing, electronics manufacturing, plastic processing, precision instrument manufacturing, and other fields. Domestically, there has been rapid development in high-power fiber lasers. Hecho Technology has been committed to the development and manufacturing of various fiber optics, providing customers with customized high-temperature-resistant, high-power transmission fiber products. As the demand for processing quality continues to rise, the application of high-power fiber lasers in the industrial sector will become increasingly widespread. Hecho Technology will continue to innovate and promote the widespread and in-depth application of laser technology.

Machine vision fibers refer to the fiber optic components and technologies used in machine vision systems. They play an important role in machine vision applications and have several common application scenarios: Fiber optic illumination: Machine vision systems often require high-brightness and uniform light sources to provide illumination conditions. Fibers can be used to transmit light from the light source, allowing it to be placed in the desired location and delivered to specific areas through fiber bundles, thus providing consistent illumination. Fiber optic sensors: Fiber optic sensors can be used to detect and measure various physical quantities in machine vision systems. For example, fiber optic displacement sensors can measure object displacement or deformation, and fiber optic temperature sensors can measure object temperature, providing accurate input data for machine vision systems. Fiber bundles: Fiber bundles can concentrate and distribute light from fiber optic light sources to adapt to specific requirements of machine vision applications. Fiber bundles can be used to focus light from the fiber optic light source to a specific area or disperse light to a larger area, meeting the demands of illumination uniformity and brightness control. Fiber optic light guides: Fiber optic light guides are ring-shaped fiber optic structures that transmit light from one point to another, enabling light path transmission and image acquisition in machine vision systems. Fiber optic light guides can be used to construct high-speed, high-resolution image transmission systems for medical imaging, robot vision, industrial inspection, and other fields. Machine vision fibers have a wide range of applications, including illumination, sensing, light path transmission, and image acquisition. The high flexibility, reliability, and high-temperature resistance of fiber optic technology make it widely used in the field of machine vision. Nanjing Hecho Technology provides reliable optical transmission solutions for machine vision systems. Companies in relevant industries are welcome to inquire.

Here are some common applications of optical fiber in the field of medical diagnostics: Fiber Optic Endoscopy: Fiber optic endoscopes are devices that integrate optical fibers for visual observation and examination of internal organs and tissues. High-intensity light transmitted through the optical fibers provides clear images, enabling accurate medical diagnosis. Fiber Optic Biosensors: Optical fibers can be used as biosensors to detect and monitor chemical components, biomarkers, or pathological changes within the human body. Fiber optic sensors utilize light scattering, absorption, or changes in light propagation characteristics to detect target substances, enabling early diagnosis and disease monitoring. Laser Therapy: Fiber optic lasers can be employed in medical treatments such as laser surgery, laser therapy, and photodynamic therapy. Laser light transmitted through optical fibers is directed to specific areas of the patient's body, achieving objectives like cutting, coagulation, vaporization, or irradiation of targeted tissues. Fiber Optic Spectroscopy: Spectroscopy is a technique used for analysis and diagnostics, and optical fibers can facilitate non-invasive spectroscopic measurements. By connecting optical fibers to spectrometers or microscopes, spectral information of samples can be obtained, allowing identification of substance composition, concentration, or tissue characteristics. Fiber Optic Imaging: Optical fibers find applications in medical imaging devices such as optical coherence tomography (OCT) and fiber optic microscopy. These technologies utilize fiber optic transmission and detection of light to generate high-resolution tissue images for disease diagnosis and research purposes. The applications of optical fiber in medical diagnostics not only provide more accurate and convenient diagnostic tools but also enable non-invasive and minimally invasive treatments, thereby significantly advancing and innovating the field of medicine.

High-temperature fiber optic cables are specially designed and manufactured optical fibers that exhibit excellent resistance to high temperatures. Conventional optical fibers may suffer damage or performance degradation in high-temperature environments, whereas high-temperature fiber optic cables can maintain good operational stability under extreme temperature conditions. High-temperature fiber optic cables are typically made with materials that have high melting points and low thermal expansion coefficients, such as high-silica materials or special coatings (such as polyimide coatings). These materials help preserve the structural integrity and transmission performance of the fiber optic cables at high temperatures. High-temperature fiber optic cables find wide applications, particularly in industrial, military, and research settings operating in high-temperature environments. For instance, they can be used for sensing, optical signal transmission, and laser connections in high-temperature furnaces, thermal power plants, aerospace applications, and more. The special design and manufacturing of Hecho high-temperature fiber optic cables enable them to deliver reliable performance in extreme temperature environments, providing crucial solutions for high-temperature application scenarios.

On September 25th to 26th, the 11th "Entrepreneurship Jiangsu" Science and Technology Entrepreneurship Competition and the 12th China Innovation and Entrepreneurship Competition Jiangsu Division Finals were held in Wuxi. Sixty entrepreneurial teams and companies from the province competed in the finals, and Nanjing HechoTechnology Co., Ltd. won the third prize and advanced to the national competition in October. The "Entrepreneurship Jiangsu" Science and Technology Entrepreneurship Competition and China Innovation and Entrepreneurship Competition Jiangsu Division are large-scale entrepreneurial events jointly organized under the guidance of the Provincial Science and Technology Department, Provincial Talent Office, Provincial Propaganda Department, Provincial Cyberspace Administration, Provincial Development and Reform Commission, Provincial Education Department, Provincial Finance Department, Provincial Human Resources and Social Security Department, Provincial Communist Youth League, and Provincial Federation of Industry and Commerce. The event is in connection with the China Innovation and Entrepreneurship Competition organized by the Ministry of Science and Technology and other units. Since its launch in 2013, the "Entrepreneurship Jiangsu" Science and Technology Entrepreneurship Competition has attracted a total of 47,000 entrepreneurial teams and companies from home and abroad to participate, making it the largest, highest-level, and most widely influential entrepreneurial brand event in Jiangsu Province, as well as Jiangsu's largest crowd innovation space and strongest crowd support platform. Nanjing Hecho Technology Co., Ltd. is a leading domestic provider of non-communication fiber optic transmission solutions. It integrates research and development, production, and after-sales service. It has been honored as a national high-tech enterprise, Jiangsu private technology-based enterprise, and Nanjing Engineering Technology Research Center. --------------占位---------------

The concept of fiber bundles actually exists in a mineral material found in nature called ulexite. Ulexite is also as TV rock. Its end face has a fascinating structure, resembling densely packed fiber bundles. This complexly structured mineral contains chains of sodium, water, and hydroxide octahedra. It appears in the form of silky white circular clusters or parallel fibers. TV rock possesses unusual optical properties, where the parallel fibers act like fiber bundles, conducting light along their length through internal reflection. If a crystal is taken, cut into planes perpendicular to the direction of the fibers, and both surfaces are polished, the TV rock sample can display an image similar to what is seen on the opposite side, much like a fiber optic panel. Nature's design has inspired scientists' understanding of the world, and combined with human intelligence, it will continue to drive progress and development in the scientific community. Nanjing Hongzhao Technology offers customized fibers, including PCR fiber bundles, power delivery fibers, LDI laser fibers, and more. With excellent product performance and strong research and production capabilities, they provide comprehensive service solutions to various industries. --------------占位---------------