September 2015Analytical Instrumentation & Environmental Monitoring
Specialist distance measurement manufacturers Senix has its ToughSonic sensors playing a critical role detecting sea level changes as part of a sophisticated Tsunami early warning system in the Philippines. Senix engineers collaborated with the Philippines Advanced Science and Technology Institute (ASTI) to customise ToughSonic 50 ultrasonic sensors for this first of a kind system. Each sensor is integrated into a tide gauge platform that also includes ASTI-designed wet and dry sensors, a solar power system and wireless communications equipment. Hundreds of these tide gauge platforms are integrated to create the largest and most sophisticated Tsunami warning system in the world.
The impetus for the system is the Manila Trench, an earthquake-prone zone west of the Philippine island of Luzon, which reaches depths of 6000 metres. The Philippines Institute of Volcanology and Seismology (PHIVOLCS) has forecast that a strong earthquake in the trench could trigger tsunamis with waves up to 10 metres high that could reach the populous Manila metropolitan area in less than an hour.
How it works
The Senix sensors detect any significant rise and fall in the sea level. The data is logged on each platform and then sent in real time to a data receiving centre operated by PHIVOLCS where data from all the sensors are consolidated and analysed using data visualisation, interpretation and decision software. The analysis results can be sent to local government agencies in near real time where officials can sound off sirens to warn people in high risk areas to move to higher ground.
The ASTI chose the Senix ToughSonic 50 ultrasonic sensor because of its unique combination of durability and flexibility, and because of the personalised service provided by Senix engineers through the research and design process. ToughSonic 316 stainless steel housings, epoxy potting and IP68 immersion rating are ideal for harsh marine environments. Senix worked with ASTI to customise the ToughSonic 50 to meet its unique interface and cabling requirements.
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