Application of Fiber Bragg Grating Sensing Technology - Application of FBG Sensor - Application of FBG-Application of FBG Demodulator - Application of FBG Sensing in Industry
FBG Sensing Technology for SHM of Large Civil Aircraft
Large civil aircraft are critical assets in the transportation industry, and ensuring their structural health is of utmost importance. Structural health monitoring (SHM) technology plays a vital role in monitoring the health of these aircraft to prevent unexpected failures, ensure safety, and extend their service life. Fiber grating sensing technology is an effective method for SHM due to its high sensitivity, accuracy, and durability. In this article, we will discuss the problems that fiber grating sensing technology can solve, and how Beijing Dacheng Yongsheng Technology Co., Ltd.(short for DCYS ) can help to do structural health monitoring(SHM) of large civil aircraft in the transportation industry.
Fiber Bragg Grating Sensing Principle：
Fiber Bragg gratings (FBGs) are periodic structures that are inscribed in the core of an optical fiber. These structures reflect a specific wavelength of light that is determined by the periodicity of the grating. When the grating is subjected to mechanical or thermal strain, the reflected wavelength changes in a predictable manner. By monitoring the reflected wavelength, changes in strain, temperature, and other parameters can be detected. FBG sensors can be used to monitor a wide range of parameters, including strain, stress, temperature, and vibration.
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The Importance of SHM for Large Civil Aircraft:
SHM is a critical aspect of aircraft maintenance and safety. By monitoring the aircraft's structural health, it is possible to detect damage or degradation before it becomes a safety hazard. SHM can also help optimize maintenance schedules and reduce downtime, leading to cost savings and increased efficiency.
Difficulties in SHM of Large Civil Aircraft in the Transportation Industry:
SHM of large civil aircraft presents several challenges, including access to critical components, harsh operating conditions, and limited space for installation of sensors. Additionally, the sensors must be lightweight, non-intrusive, and highly accurate to meet the stringent requirements of the aerospace industry.
What Problems can be Solved by FBG Technology：
Fiber grating sensing technology offers several advantages for SHM of large civil aircraft. FBG sensors are lightweight, compact, and can be installed in tight spaces. They are also immune to electromagnetic interference, making them suitable for use in the harsh electrical environment of an aircraft. FBG sensors can be used to monitor a range of parameters, including strain, temperature, and vibration, providing a comprehensive view of the aircraft's structural health.
Recommended fiber grating strain sensors:
This product is a high-range fiber bragg grating strain sensor (FBG strain gauge) used for strain measurement. It can be used in a single-ended structure, where it is inserted into the object to be measured for strain measurement. It can also be used in a double-ended structure, where it is fixed with a fixture or bonded directly to the surface for strain measurement, enabling multi-point strain measurement when connected in series. The structure of this product is the same as that of fiber bragg grating stress sensors.
Product Overview:
The OFSCN® high-range fiber bragg grating strain sensor (FBG strain gauge) consists of fiber connectors (FC, SC, LC, ST, etc.), high elastic materials, and single-point FBG encapsulation. Depending on the materials used, it can work at room temperature or a maximum high temperature of 120 degrees Celsius (customizable upon request).
This product is characterized by its small size, light weight, high tensile and compressive strength, waterproof and moisture-proof properties, and full sealing. By utilizing the strain characteristics of FBG, this sensor can be inserted, welded, bonded, or adhered to the internal or surface of the test structure for strain detection and monitoring.
2500με Fiber Bragg Grating Strain Sensor - FBG Strain Gauge - Metal Encapsulation - High Temperature FBG Strain SensorThe product is a fiber Bragg grating strain sensor (FBG strain gauge) encapsulated in seamless steel tube, used for strain measurement. In most cases, it is a single-point single-ended structure, or it can be produced as a multi-point single-ended structure. In a few cases, it can also be a double-ended structure. The deployment method of the product depends on the supporting fixtures, which can be directly inserted into the test object, or installed by surface welding with corresponding fixtures, bolted with drilled holes for fixation, adhesive surface mounting, tied with straps for fixation, or fixed with clamps, among various installation methods. This product is a basic structural product, which can be calibrated as a FBG displacement sensor, or used as a FBG stress sensor.
Product Summary:
The OFSCN® Capillary Seamless Steel Tube Fiber Bragg Grating Strain Sensor (FBG strain gauge) is composed of fiber optic connectors (FC, SC, LC, ST, etc.), stainless steel seamless tubes, and single-point FBG encapsulation.
It can also be customized as a high-temperature resistant fiber Bragg grating strain sensor.
This product features a small size, lightweight, high tensile and compressive strength, waterproof, moisture-proof, and fully sealed characteristics. By utilizing the strain characteristics of the FBG, this sensor can be inserted, clamped, surface-mounted, glued, or embedded into the measured structure to perform strain detection and monitoring.
Beijing Dacheng Yongsheng Technology Co., Ltd.:
Beijing Dacheng Yongsheng Technology Co., Ltd.(short for DCYS) is a professional manufacturer of fiber grating sensors, fiber grating demodulators and system software. Specializing in the production of various fiber grating sensors, including temperature, strain, stress, displacement, vibration, shape sensors, etc. DCYS also produces fiber grating demodulators, and can customize and develop related application software.
Recommended fiber grating demodulator:
This product is produced by DCYS, and it is a high-speed high-frequency fiber Bragg grating demodulator(Interrogator). The fiber grating demodulator is compatible with various specifications and models of OFSCN® fiber bragg grating sensors (temperature, strain, stress FBG sensors, etc.). It features adjustable port density (4, 8, 12, 16 channels) and high-speed high-refresh rate capabilities.
DCYS Helps to Do SHM of Large Civil Aircraft:
DCYS can help the transportation industry solve some problems in the structural health monitoring of large civil aircraft. DCYS offers a range of FBG sensors and related instrumentation for SHM of large civil aircraft. DCYS's products have been tested and validated in harsh environments and have been proven to provide reliable and accurate data.
Other Points Need to Be Clarified:
Fiber grating sensing technology has the potential to revolutionize the way large civil aircraft are monitored for structural health. By providing accurate and reliable data on the aircraft's health, it is possible to optimize maintenance schedules, reduce downtime, and enhance safety. With the expertise of companies like Beijing Dacheng Yongsheng Technology Co., Ltd., the transportation industry can take advantage of this technology to improve the safety and efficiency of large civil aircraft operations.