Kongsberg Maritime has patented a drive shaft monitoring system with coded discs and light sensor assemblies for accurate monitoring. The system includes multiple slots evenly distributed on the discs, allowing light to pass through for monitoring purposes. GlobalData’s report on Kongsberg Maritime 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 Kongsberg Maritime, was a key innovation area identified from patents. Kongsberg Maritime's grant share as of February 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.

Drive shaft monitoring system with coded discs and light sensors

Source: United States Patent and Trademark Office (USPTO). Credit: Kongsberg Maritime AS

A newly granted patent (Publication Number: US11920995B2) discloses a drive shaft monitoring system designed to monitor twist or torque in a drive shaft. The system comprises multiple coded discs with slots or recesses arranged on the exterior surface of the drive shaft at different positions. These coded discs are equipped with light sensor assemblies that allow light to pass through the slots or recesses, enabling accurate monitoring of the drive shaft's behavior. The system includes independent light sensor assemblies positioned at specific circumferential distances on the coded discs, ensuring precise alignment for effective monitoring.

Furthermore, the drive shaft monitoring system incorporates a support structure that attaches the light sensor assemblies to the object structure the drive shaft is connected to, without direct contact with the coded discs or the drive shaft. This innovative system also includes a processing unit with software capabilities for calculating various parameters such as revolutions per minute, shaft torsional angle, torque, power, misalignment, and eccentricity. Additionally, the system can utilize a high-resolution incremental encoder for calibration purposes and can be combined with a flywheel sensor for measuring clutch slip. Overall, this patented drive shaft monitoring system offers a comprehensive solution for accurately monitoring and analyzing the behavior of drive shafts, ensuring optimal performance and maintenance.

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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.