PAULSSON
Advanced Optical Sensing
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GEOTECHNICAL & FAULT MONITORING
Paulsson's geotechnical and fault monitoring technologies use advanced fiber optic accelerometers and large acoustic sensor arrays. Our sensors can record energies as low as nano-Joules seismic energies and be attached to micro-seismic real-time monitoring networks. Paulsson is tracking seismic activities in earthquake prone areas and delivers real-time location of earthquakes near and far.
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Paulsson's high frequency vibratory borehole seismic source (5-1,600 Hz) and ultra high-resolution fiber optic acoustic and vector seismic sensors provide accurate and safe surveying and monitoring technologies for dams, power stations, buildings, bridges, roads and other critical infrastructure.
FIBER OPTIC ACCELEROMETERS
Fiber optic accelerometers and large acoustic sensor arrays are two types of advanced seismic monitoring technologies that are used to detect and analyze earthquakes.
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Fiber optic accelerometers work by using a long fiber optic cable that is coated with a material that is sensitive to movement. When an earthquake occurs, the movement causes a strain in the fiber optic cable, which can be measured and analyzed. These accelerometers are highly sensitive and can detect very small vibrations caused by an earthquake, making them a valuable tool for monitoring seismic activity.
LARGE ACOUSTIC SENSOR ARRAYS
Large acoustic sensor arrays work by detecting the sound waves that are generated by an earthquake. These sensors are placed in an array across a large area, and when an earthquake occurs, they detect the sound waves that are produced. By analyzing the data from the sensor array, scientists can determine the location, magnitude, and other characteristics of the earthquake.
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To use these technologies for earthquake monitoring, a network of sensors is typically installed in the ground in the region being monitored. The fiber optic accelerometers and acoustic sensor arrays are then connected to a central data collection and analysis system. This system processes the data from the sensors in real-time, using algorithms and machine learning techniques to analyze the seismic activity and detect any potential earthquakes.
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Overall, the use of advanced fiber optic accelerometers and large acoustic sensor arrays can greatly improve earthquake monitoring and early warning systems, helping to reduce the damage and loss of life caused by earthquakes.
DELIVERING REAL-TIME LOCATION OF EARTHQUAKES NEAR AND FAR
Fiber optic accelerometers and large acoustic sensor arrays are capable of providing real-time location data of earthquakes, both near and far.
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When an earthquake occurs, the seismic waves generated by the event travel through the Earth's crust and can be detected by sensors placed in the ground. These sensors pick up the vibrations and transmit the data to a central data collection and analysis system.
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The data collected by the sensors can be used to determine the location of the earthquake. By analyzing the arrival times of the seismic waves at different sensor locations, scientists can triangulate the epicenter of the earthquake. This is done by measuring the time it takes for the seismic waves to reach each sensor and using this information to calculate the distance between the sensor and the epicenter.
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In addition to determining the location of the earthquake, the data collected by the sensors can also provide information about the magnitude and other characteristics of the event. This information can be used to alert people in the affected area and provide early warning systems to prevent damage and loss of life.
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Overall, the use of fiber optic accelerometers and large acoustic sensor arrays can provide real-time location data of earthquakes, allowing for quick and effective response to seismic events. This can help to minimize the impact of earthquakes on communities and infrastructure, and ultimately save lives.
PAULSSON TECHNOLOGY:
4X THE EARTHQUAKE DATA
4X THE ACCURACY
SAN ANDREAS FAULT OBSERVATORY AT DEPTH (SAFOD) RESULTS
PAULSSON
Paulsson located 150 earthquakes by borehole earthquake monitoring during about 13 days in 2005.
USGS
USGS located 35 earthquakes by surface earthquake monitoring during the same times as Paulsson’s borehole earthquake monitoring in 2005.
PAULSSON IN THE FIELD
Florida
2017
Monitoring sinkholes at Mosaic Gypsum stacks.
