Distributed Acoustic Sensing (DAS/DVS) System
Distributed Acoustic Sensing (DAS/DVS) device
Existing fiber can also be used! Continuous monitoring of long-distance sections over 50 km for 24 hours! Detects earthquakes, leaks, and other anomalies!
Our company's distributed acoustic vibration sensing system (DAS/DVS) is a system that 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, effectively turning the network itself into a distributed acoustic sensor. In recent years, it has been used to detect minute vibrations caused by seismic waves, leaks or water seepage in factory piping, and various other abnormal sounds, as well as to pinpoint their locations. Our measurement devices are less susceptible to the effects of fading signals commonly observed in systems using other C-OTDR principles, 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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basic information
Maximum measurement distance: over 50 km/ch Compatible fiber: single mode (For DTGS compatibility, 2 cores or more) For details, please contact us.
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Applications/Examples of results
Seismic wave observation Pipeline leakage/water leak detection Intrusion detection Cable condition monitoring Traffic network management
Company information
Our company is a leading provider of fiber optic temperature monitoring and fire detection systems. Utilizing our extensive technical expertise gained through various successful implementations in fields such as temperature monitoring of power cables and plant equipment, tunnel fire detection, geothermal measurement, water temperature measurement in rivers and oceans, and pipeline temperature monitoring, we provide optimal and safe systems for our customers. In recent years, we have introduced temperature monitoring systems for major power companies and fire detection systems for subway lines overseas. Additionally, we are collaborating with various research institutions and companies to develop specialized sensors. We also develop custom sensors based on customer needs, so please feel free to inquire if you have any requests. We also conduct other services such as surveys and measurements. If you are in a hurry or do not receive a response to your inquiry, please contact us through our company website.
