Fiber Bragg grating strain sensors employ fiber optic principles for strain detection. These sensors possess great sensitivity and reliability, which explains their growing popularity across various engineering and monitoring applications.
The fiber optic strain gauge is directly attached onto the metal structure’s surface (such as pipes or beams) and features a silicone protective cover. Another method is to embed the sensor into a metal structure. Fiber optic strain sensors are durable and reliable, thus often utilized in civil engineering, especially to reinforce concrete structures.
S1 | ST2 | S8 | S9 | S10 | S11 | |
Measurement range, με | -3000 ... +3000 | -1000... +1000 | -5000… +5000 | -1500 ... +1500 | -1500 ... +1500 | -1500 ... +1500 |
Operating temperature, °C | -50 ... +80 | -20... +80 | -50 ... +80 | -5... +80 | -5... +80 | -5... +80 |
Temperature compensation | - | + | - | - | - | - |
Resolution, % | 1.0 | 0.1 | 2.0 | 1.0 | 1.0 | 1.0 |
Accuracy, % | 1.0 | 1 | +/- 0.1 | 1.0 | 1.0 | 1.0 |
Materials | Stainless steel | |||||
Dimensions, mm | 10 x 40 x 2.1 | Ø33 x 110 | Ø24 x 170 | Ø12 x 102 | Ø33 x 110 | 78 x 14 x 7 |
Fiber Bragg grating strain sensors possess various key characteristics that enhance their performance and suitability across multiple industrial and technical applications.
FBG strain sensors are highly sensitive to variations in strain, allowing them to detect even minor changes in structures.
FBG strain sensors transmit data efficiently over extended distances without requiring signal enhancement. This extended-range ability is beneficial for overseeing bridges or pipelines.
FBG strain sensors are resistant to corrosion because of their optic fiber properties. They function effectively in harsh conditions due to their low thermal conductivity and consistent optical characteristics.
FBG strain sensors demonstrate remarkable long-term stability, even in the presence of mechanical fatigue, which is crucial for applications that need ongoing condition monitoring over long durations.
FBG sensors are naturally resistant to electromagnetic interference (EMI), making them ideal for use in settings where electrical noise might impact measurement precision.
Fiber Bragg Grating Strain Sensors are utilized in numerous industries due to their exceptional accuracy and dependability. Their capability to measure strain efficiently renders them essential for monitoring and evaluation tasks.
FBG strain sensors are often used to evaluate the condition of bridges, buildings, and dams. They provide essential data that helps to avoid disasters and encourage prompt maintenance.
FBG strain sensors are small and lightweight, making them ideal for use in the aerospace sector. These sensors deliver precise information that guarantees the safety and integrity of the aircraft’s parts.
FBG strain sensors aid in acquiring essential health information, being both non-invasive and very sensitive. Consequently, fiber optic sensors can be utilized for various applications, such as sophisticated medical diagnostics and wearable health technologies.
FBG strain sensors are flexible and can be readily adjusted for use in various industries. From overseeing substantial structures to sophisticated medical diagnostics, these sensors consistently deliver precise and dependable information.
