Distributed Acoustic Sensing (DAS/DVS) System

Existing fiber can also be used! Continuous monitoring of behavior over long-distance sections of 50 km or more for 24 hours! Detects earthquakes, leaks, and other anomalies!

Our company's distributed acoustic vibration sensing system (DAS/DVS) captures vibrations received by installed optical fibers as acoustic energy. Essentially, it utilizes existing optical fiber networks (such as transportation and communication networks) to acquire data in real-time, functioning as a distributed acoustic sensor. In recent years, it has been used to detect minute vibrations caused by seismic waves, leaks or water leaks in factory piping, and various other abnormal sounds, as well as to pinpoint their locations. Our measurement device is less susceptible to the effects of fading signals typically observed in systems using the C-OTDR principle, thanks to our unique 2P squared technology. In the ultra-low frequency range, the phase difference method C-OTDR system can sensitively measure transient temperatures caused by the expansion and contraction of fibers due to temperature changes. This method is known as distributed temperature gradient sensing (DTGS) and is well-known in the oil and gas industry. We are conducting research to measure and utilize a wide variety of phenomena using this product in collaboration with various research institutes, universities, and companies in Japan. For more details, please contact us directly or through this website.

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