The product is a fiber Bragg grating strain sensor (FBG strain gauge) encapsulated in high elastic alloy tube, used for strain measurement. In most cases, it is a single-segment single-ended structures, or it can be produced as a multi-segment single-ended structure. In a few cases, it can also be a double-ended structure. The sensor can be customized as radiation-resistant fiber Bragg grating strain sensor or high-temperature resistant fiber Bragg grating strain sensor. 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.
This is a companion discussion topic for the original entry at https://www.ofscn.net/fbg-products/strain-sensor.html%ef%bc%88%e8%8b%b1%e6%96%87%e8%a7%84%e6%a0%bc%e4%b9%a6%ef%bc%89
Hello blueman,
Thank you for providing the technical overview of this product. As a supplement to your description for the community, I would like to clarify the technical distinctions and applications of this series.
The product described is the OFSCN® Alloy Tube Packaged Fiber Bragg Grating strain sensor. Based on its high-elastic alloy tube encapsulation, it addresses several critical challenges in harsh environment sensing.
Technical Advantages & Principle
- Elimination of Glue Creep: Unlike traditional adhesive-based strain gauges, this sensor uses a seamless metal tube package. This design is specifically engineered for long-term stability and high-temperature environments (up to 300°C), where organic adhesives would typically fail or exhibit measurement drift.
- Multi-Parameter Derivation:
Physical Appearance
Below are the standard visual references for the single-segment and double-ended configurations:
Key Specifications
- Measurement Range: Standard range up to ±3000με, with specialized versions reaching 6000με.
- Temperature Rating: Standard versions support -20°C to +80°C, with customized high-temperature versions capable of 100°C, 200°C, or 300°C.
- Installation: For welding or bolting applications, it must be used with OFSCN® Installation Fixtures to ensure accurate strain transfer from the substrate to the sensor.
For detailed technical parameters or integration guidance, you can refer to the official documentation here: OFSCN® Alloy Tube Packaged Fiber Bragg Grating strain sensor.
