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 Dam Structural Health Monitoring in the Civil Engineering Industry
Fiber grating sensing technology is a versatile technology that has gained a lot of attention in various industries, including civil engineering. In dam construction, for instance, fiber grating sensors have been used for structural health monitoring. 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 support dam structural health monitoring in the civil engineering 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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Importance of of Dam Structural Health Monitoring:
Dams play a critical role in water management systems, providing water supply, flood control, hydroelectric power, and irrigation. Ensuring the safety and reliability of dams is vital to protect human life and property. Dam failures can lead to catastrophic consequences such as loss of life, property damage, and environmental impacts. Therefore, it is essential to monitor the structural health of dams to detect any defects, damage, or changes that may impact their stability and integrity.
Challenges in Dam Structural Health Monitoring:
Monitoring dams is a challenging task due to their size, location, and complexity. Dams are massive structures that are often located in remote areas, making access and data collection difficult. The harsh environmental conditions and the presence of water and moisture can also affect the accuracy and reliability of traditional sensors used for dam monitoring. Additionally, traditional monitoring techniques may not detect the early stages of damage or defects, leading to costly repairs or even failure.
What Problems Can Be Solved by FBG Sensing Technology:
Fiber grating sensing technology offers a reliable and efficient way to monitor the health of tunnels in real-time. It allows engineers to measure various parameters, such as strain, temperature, and displacement, in multiple locations along the tunnel structure. This real-time data enables engineers to identify potential problems early and take corrective action to prevent structural damage.
Recommended fiber grating strain sensors:
The 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.
6000με Fiber Bragg Grating Strain Sensor - FBG Strain Gauge - polymer material packaging - metal protection strain sensor - range 6000με/8000μεThis 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.
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 Supports Dam Structural Health Monitoring in the Civil Engineering Industry:
DCYS can provide solutions to the challenges faced in dam structural health monitoring. We offer a range of fiber grating sensors that can be installed in various parts of the dam structure to monitor its health in real-time. DCYS‘s fiber grating sensors are highly accurate, reliable, and can withstand harsh environmental conditions.
Other Points Need to Be Clarified:
The advantages of fiber grating sensing technology in dam structural health monitoring are evident. The technology provides accurate and reliable data that can be used to detect the health of a dam and identify potential structural issues before they become major problems. With the help of fiber grating sensors, engineers can ensure the safety and longevity of dams, which are critical for water supply, power generation, and flood control.
In conclusion, fiber grating sensing technology has revolutionized the field of civil engineering, providing engineers with powerful tools to monitor the structural health of buildings, bridges, tunnels, dams, and other infrastructure. Beijing Dacheng Yongsheng Technology Co., Ltd. is at the forefront of this technology, offering a range of fiber grating sensors, solutions, and software that can help the civil engineering industry solve some of the most pressing challenges in structural health monitoring