State Power Investment has developed an innovative acousto-optic leakage monitoring system for main steam pipelines in nuclear power plants. The system combines acoustic emission and spectroscopy for early leak detection, improving response time and safety margins while keeping maintenance costs low. GlobalData’s report on State Power Investment 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 State Power Investment, AI-assisted video analysis was a key innovation area identified from patents. State Power Investment's grant share as of January 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Acousto-optic leakage monitoring system for nuclear power plant main steam pipeline

Source: United States Patent and Trademark Office (USPTO). Credit: State Power Investment Corp Ltd

A recently granted patent (Publication Number: US11823805B2) discloses an innovative acousto-optic leakage monitoring system designed for main steam pipelines in nuclear power plants. The system includes an acoustic emission leakage monitoring loop with multiple sensors positioned around weld seams, along with a spectrum leakage monitoring loop featuring micro-optical fiber probes in the same location. These sensors and probes are interconnected through a network switch, which is further linked to a control unit and a display unit for seamless monitoring and analysis.

Furthermore, the system incorporates signal amplifiers and a data acquisition unit within the acoustic emission loop to enhance monitoring capabilities. The data acquisition unit consists of an acquisition card and an I/O card, responsible for collecting signals from the sensors, converting them into digital data, and transmitting them to the network switch. Additionally, the spectrum leakage monitoring loop includes a laser transmitter and a spectrum analyzer connected to the micro-optical fiber probes, all interconnected through armored optical fiber cables. This comprehensive setup ensures efficient communication and data transmission for accurate leakage monitoring within the nuclear power plant's containment area.

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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.