fiber bragg grating sensor price

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Overview of Fiber Bragg Grating Sensor Prices

The price of grating sensors from Fuzhou Innovation Electronic Scie&Tech Co., Ltd.
Fuzhou Innovation Electronic Scie&Tech Co., Ltd. provides various types of grating sensors, including grating temperature sensors, grating strain sensors, and grating pressure sensors. These sensors are renowned for their high precision and reliability, and are widely used in multiple industrial and scientific research fields.

Grating temperature sensor
Product features: Fuzhou Innovation Electronic ‘s grating temperature sensor has high precision and resolution, which can monitor temperature changes in real time and is suitable for various industrial and scientific research occasions.
Price range: The specific price may vary depending on the model and configuration. It is recommended to contact the company directly for the latest quotation.
Grating strain sensor
Product features: Grating strain sensors can accurately measure strain changes and are suitable for health monitoring of bridges, buildings, and other structures.
Price range: Similarly, the specific price needs to be determined based on actual demand and product specifications.
Grating pressure sensor
Product features: The grating pressure sensor has excellent pressure resistance and stability, suitable for use in high-pressure and high-temperature environments.
Price range: Please consult the official channel of Fuzhou Yingnuo Technology for specific prices.

The price of HGSKYRAY’s grating Bragg sensor
HGSKYRAYalso provides grating Bragg sensors, which have a wide range of applications in the fields of optics and materials science.

Bragg grating sensor
Product features: Grating Bragg sensors can accurately measure the wavelength changes of light, suitable for precision optical measurement and scientific research.
Price range: Specific prices may vary depending on specifications and application requirements. It is recommended to contact HGSKYRAY directly for a detailed quotation.

Get a more accurate quote
Due to various factors affecting the price of fiber Bragg grating sensors, including product specifications, materials, application areas, and market supply and demand relationships, it is recommended to directly contact the official channels of Fuzhou Innovation Electronic and HGSKYRAY obtain the latest quotations and product information.

contact information
Fuzhou Innovation Electronic : Contact number 4001816499 or 0591-838464991
HGSKYRAY: It is recommended to visit the official website or directly contact the company to obtain the latest quotation.
Through direct communication, you can obtain detailed quotations and product descriptions tailored to your specific needs, ensuring that you purchase the fiber Bragg grating sensor that best suits your needs.

What is a fiber Bragg grating optic fiber sensor?

 

What is the function of fiber Bragg grating?

What is fiber Bragg grating temperature sensing?

Браг решетка со влакна (FBG) Temperature Sensing
Браг решетка со влакна (FBG) temperature sensing is a technology that utilizes the sensitivity of FBG to temperature changes for temperature measurement. FBG is a periodic refractive index modulated fiber structure that can reflect light of a specific wavelength, known as Bragg wavelength (λ B). When the ambient temperature of FBG changes, the physical properties of the fiber will change, resulting in a change in the Bragg wavelength. By monitoring the changes in this wavelength, the temperature changes can be calculated.

working principle
The basic working principle of FBG temperature sensing is as follows:

The definition of Bragg wavelength: The wavelength of light reflected by FBG is determined by its period and the refractive index of the fiber, i.e. λ B=2neff ∧, where neff is the effective refractive index and ∧ is the grating period.
Temperature effect: When the temperature increases, the fiber material will expand, causing an increase in the grating period ∧, and the refractive index neff of the fiber will also change. These two factors work together to shift the Bragg wavelength.
Wavelength monitoring: By using appropriate demodulation techniques, such as using the monotonically decreasing sidebands of an amplified spontaneous emission (ASE) light source for demodulation, the changes in Bragg wavelength can be accurately monitored.
Temperature calculation: Based on the monitored changes in Bragg wavelength and the pre calibrated relationship curve, the corresponding temperature changes can be calculated.
application
FBG temperature sensing technology has many advantages, such as anti electromagnetic interference, отпорност на корозија, and easy integration, so it has a wide range of applications in various fields, including but not limited to:

Structural health monitoring: used for temperature monitoring of large structures such as bridges and buildings to assess their health status.
Industrial process control: In industries such as petroleum and chemical, it is used to monitor the temperature of critical parts in real time to ensure production safety.
Medical field: used for temperature monitoring, temperature control of surgical instruments, итн.
The importance of encapsulation methods
In order to improve the stability and reliability of FBG temperature sensors, the research on packaging methods is particularly important. Appropriate packaging methods can protect FBGs from external environmental influences, extend their lifespan, and improve measurement accuracy.

conclusion
Fiber Bragg grating temperature sensing is an efficient and reliable temperature measurement technology with broad application prospects. Through in-depth research and optimization of FBG, its performance can be further improved to meet the temperature monitoring needs in more complex environments.

What is the grating length of fiber Bragg?

The meaning of grating length in fiber Bragg grating
In fiber Bragg gratings (FBGs), grating length is an important parameter.

1、 From a structural perspective, fiber Bragg grating is an optical device that forms periodic refractive index modulation in the fiber core region. The grating length refers to the length dimension of the refractive index modulation region along the axial direction of the fiber. It’s like marking or processing the length of a part on a long rope according to a certain pattern. For example, when a structure with periodic refractive index changes is manufactured on the fiber core diameter through specific manufacturing processes such as photolithography, phase masking, итн., the length of the fiber section from the beginning to the end of this periodic change is the grating length. Its units are usually length units such as millimeters (mm).

2、 The significance of the impact on grating performance

The impact on reflection characteristics
The grating length affects the reflectivity of the grating. Општо земено, longer grating lengths can lead to higher reflectivity. This is because in longer grating regions, more light interacts with the refractive index modulation part. According to the coupling mode theory, the propagation of light in fiber Bragg gratings can be described by a series of coupling modes. As the grating length increases, the proportion of light that meets the Bragg condition is reflected, thereby improving the reflectivity. For example, in some optical communication systems, longer grating length FBGs may be more suitable for efficient reflection of specific wavelengths of light for filtering and other functions.
The impact on spectral characteristics
It also affects the bandwidth of the grating. A longer grating length often narrows the bandwidth of the reflected spectrum. From a physical perspective, light reflects and interferes multiple times within a longer grating, resulting in a relatively concentrated wavelength range of the reflected light. In some sensors or optical communication applications that require high-precision spectral filtering, the grating length needs to be adjusted according to actual requirements to meet specific bandwidth requirements.
The significance in sensing applications
In the field of fiber Bragg grating sensing, the length of the grating will affect the response sensitivity to the measured parameters such as temperature and strain. Different grating lengths may produce varying degrees of response to changes in the same physical quantity. Experiments have shown that for strain measurements within a certain range, FBGs with shorter grating lengths may be more sensitive to strain response; In terms of temperature sensing, there is a complex relationship between the grating length and the wavelength drift caused by temperature. Different grating lengths will result in different wavelength displacements of FBGs when temperature changes. Затоа, it is necessary to comprehensively consider factors such as grating length when designing fiber Bragg grating sensors to optimize sensor performance.
Although the grating length in fiber Bragg gratings is only a simple geometric parameter, it has complex and important effects on the reflectivity, spectral characteristics, and sensing performance of fiber Bragg gratings. It is one of the key parameters to be considered in the actual design, manufacturing, and application of FBGs.

What is the sensitivity of fiber Bragg grating?

What is the use of fiber optic sensor?

How to inscribe fiber Bragg grating?

How to engrave Fiber Bragg Grating
Браг решетка со влакна (FBG) is an important optical component with wide applications in communication and sensing fields. Engraving fiber Bragg gratings usually involves several different techniques, and the following are several common engraving methods:

Phase Mask Method
The phase mask method is currently one of the most commonly used methods for engraving FBGs. This method uses a phase mask to control the interference pattern of the laser, resulting in periodic refractive index changes in the fiber, which are known as FBGs. The advantages of phase masks include high efficiency, repeatability, and mass production capability. Сепак, it also has some limitations, such as high quality requirements for masks and difficulty in implementing complex grating structures.

Point by Point Writing
Point to point engraving is a more flexible engraving technique that allows for precise engraving of gratings at any position on optical fibers. This technology typically uses a focused laser beam to directly engrave on the fiber, thus enabling customized grating structures. A significant advantage of point-to-point engraving is that it can engrave special types of gratings, such as chirped gratings and phase shifted gratings. Сепак, this method is relatively inefficient and the process is time-consuming.

Femtosecond Laser Inscription
Femtosecond laser engraving is an emerging technology that utilizes the high energy density of femtosecond laser to directly engrave gratings in optical fibers. This method does not require optical fibers to have photosensitivity, so it can be engraved on standard telecommunications optical fibers. The advantages of femtosecond laser engraving include the ability to engrave on coated optical fibers, improving the mechanical strength of the fibers, and the ability to engrave gratings with lengths ranging from a few millimeters to tens of millimeters. Покрај тоа, this method can also engrave gratings in packaged optical fibers, which is very useful for certain special applications.

Interferometer method
Interferometer method is another technique used for engraving FBGs. In this method, interference fringes are generated by an interferometer, which are used to form a grating in the optical fiber. The interferometer method can provide high-precision grating engraving, but the equipment is complex and the cost is high. Покрај тоа, this method requires high environmental conditions and needs to be operated in a stable environment.

The above are several common methods for engraving fiber Bragg gratings, each with its own advantages and disadvantages, suitable for different application scenarios. When choosing a writing method, specific requirements need to be considered, such as the type, length, reflectivity, bandwidth, and production efficiency of the grating.

What is the purpose of grating?

Overview of the purpose of gratings
1、 Understand its purpose from the most basic concepts
The basic meaning of “Purpose” is purpose, intention, referring to a specific goal that someone wants to achieve by doing something, and can also refer to the role that something plays in a certain activity or another thing. For gratings, their purpose can be understood from different perspectives.

One of the main purposes of gratings in optics is to control the distribution of light. A grating is composed of a series of equidistant slits or reflective surfaces, which can cause incident light to diffract according to a certain pattern. When light is irradiated onto a grating, light of different wavelengths will diffract at different angles, which can decompose composite light into monochromatic light of different wavelengths. This is similar to prism decomposition of light, but gratings have unique advantages in accuracy and spectral resolution. The purpose of dispersing light is very important in the field of spectroscopic analysis. For example, in astronomy, scientists use gratings to analyze the light emitted by stars or galaxies, in order to determine their material composition, температура, and motion state. Because different elements emit or absorb specific wavelengths of light, analyzing the wavelength of light through gratings can identify the type of element.

In physics experiments and research, gratings can be used to measure the wavelength of light. According to the grating equation (d (sin θ ₁+sin θ ₂)=m λ, where d is the grating constant, θ ₁ and θ ₂ are the incident angle and diffraction angle, m is the diffraction order, and λ is the wavelength of light), as long as the grating constant, measured incident and diffraction angles, and diffraction order are known, the wavelength of light can be accurately calculated. This measurement purpose relies on the precise control of the diffraction characteristics of light by the grating.

2、 Explain the differences in purpose of different types of gratings
Planar grating
Planar gratings are often used for spectral operations in planar optical systems. Its manufacturing process is relatively mature and widely used in many traditional spectrometers. For example, small spectrometers in laboratories are designed to quickly and easily test the spectral characteristics of sample materials. It can be testing the absorption and emission spectra of chemical materials to determine their chemical structure and composition. Some teaching laboratories use spectrometers containing planar gratings for basic optical experiments, allowing students to intuitively observe the diffraction of light and the formation process of spectra, thereby understanding the principle of light splitting in optics. The purpose of this is mainly for teaching demonstrations, and planar gratings are low-cost and easy to operate to achieve this goal.
Sparkling grating
The characteristic of a dazzling grating is to concentrate most of the energy into a specific order of diffracted light. The purpose is often to improve the diffraction efficiency of the grating in a specific wavelength range. For example, in the field of fiber optic communication, the use of blazed gratings can effectively couple and decouple optical signals of specific wavelengths. In dense wavelength division multiplexing (DWDM) systems, the use of blazed gratings can efficiently separate and combine optical signals of different wavelengths, increasing the capacity and transmission efficiency of fiber optic communication systems. Because in this system, each wavelength is an independent communication channel, maximizing the diffraction efficiency of specific wavelength light helps reduce signal loss and ensure communication quality.
Volume grating
Volume gratings have a special control effect on light in three-dimensional space. One of its important purposes is for storing and filtering light. In holographic storage technology, volume gratings can store optical information in the form of holograms through interference, and when needed, these information can be restored through specific light excitation. For example, in the research of archive storage or high-density data storage, the characteristic of volume grating reflects its important application value. In terms of optical filtering, volume gratings can filter specific optical signals based on their wavelength, polarization, and other characteristics, playing an indispensable role in some laser systems. For example, in some high-power laser devices, this filtering function purifies the frequency of the output laser to ensure the monochromaticity and stability of the laser.
3、 The purpose presentation of gratings in different industries
Scientific research field
In terms of materials science: to study the optical properties of materials, gratings can be used to measure the relationship between the reflectivity, transmittance, and wavelength of materials. By shining light onto the sample and a grating with known reflectivity, and measuring the intensity distribution after diffraction, the optical parameters of the material at various wavelengths can be indirectly obtained. The purpose is to accurately understand the optical properties of materials, such as in the study of the band structure of crystal materials. By measuring the response of materials to different wavelengths of light at different temperatures and utilizing the spectral ability of gratings, it is helpful to analyze the influence of temperature on the electronic structure of materials.
In quantum optics research, gratings can be used to prepare photon states with specific momentum distributions, and to study phenomena such as quantum coherence and entanglement. By designing special grating structures and laser irradiation methods, entangled photon pairs can be generated, with the aim of exploring the fundamental properties of the quantum world and providing important tools in cutting-edge research directions such as quantum communication and quantum computing. For example, when constructing a quantum key distribution system, utilizing the quantum entanglement relationship between specific photon states generated by gratings can ensure the security of communication.
Engineering technology field
Optical instrument manufacturing industry: Grating is one of the core components of many optical instruments, such as spectrometers, monochromators, итн. The purpose of using gratings in the manufacturing of these instruments is to improve their resolution, accuracy, и стабилност. For example, high-end spectrometers require the ability to distinguish extremely similar wavelengths, and gratings can meet this high-resolution requirement through their precise diffraction principle, enabling the instrument to accurately analyze the spectral characteristics of substances, playing a key role in many instruments and equipment such as chemical analysis instruments, environmental monitoring instruments, and aerospace imaging instruments.
Semiconductor manufacturing industry: Photolithography technology is a key process step in semiconductor production, in which gratings can be used to shape and split the lithography light source. By using specially designed gratings to optimize the illumination system of lithography, the resolution and repeatability of lithography can be improved. The purpose is to manufacture finer and more complex integrated circuit structures on semiconductor substrates such as silicon wafers, thereby improving the performance of chips. With the continuous development of chip manufacturing processes towards the microscale, the role of gratings in lithography technology has become increasingly important.