Saab has patented a method for determining temperature and pressure changes in optical fibers with Fiber Bragg Grating patterns. The method involves emitting light in both directions through the fiber, capturing reflections, and processing them to assess changes. A computer program product and associated system are also included. GlobalData’s report on Saab gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Saab, Lidar scanners was a key innovation area identified from patents. Saab's grant share as of June 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.
Method for determining pressure changes in optical fibre
The patent US12031871B2 outlines a method and system for detecting pressure changes in an optical fiber equipped with Fiber Bragg Grating (FBG) patterns. The system consists of two detector arrangements connected by the optical fiber, with each arrangement comprising light emitting and detecting devices, as well as control arrangements for processing the reflected light. The method involves emitting light in one direction from the first detector, capturing reflections to determine pressure changes, and, based on specific criteria, emitting light in the opposite direction from the second detector to further assess pressure changes. The system is designed to ensure continuous operation by allowing one detector to function if the other fails or if a disconnection occurs along the fiber.
Additionally, the patent describes various operational modes for the detector arrangements, including simultaneous, alternating, or single operation. It also includes provisions for identifying the location of pressure changes using combined wavelength and time division multiplexing techniques. The system can accommodate multiple optical fibers, each with FBG patterns, and is capable of determining specific characteristics related to these fibers. The patent further encompasses a non-transitory computer-readable medium with instructions for executing the described methods, as well as applications in platforms and aircraft, indicating its potential utility in various fields requiring pressure monitoring.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
