22 September, 2019

Sensor calibration capacity doubled on Grand Paris Metro tunnel build

01 March, 2019

RPI, the developer and manufacturer of precision positioning devices for high accuracy rotary and angular inspection systems, has supplied a LabStandard rotary table to Worldsensing, enabling the pioneering IoT technology provider to double the calibration capacity of its wireless tiltmeter used in the construction of a new tunnel for the Grand Paris Metro.


Worldsensing installed its data acquisition system in the tunnel, setting Loadsensing data nodes which are connected to sensors every 100 meters to enable early detection of structural instability during the construction process. RPI’s LabStandard was used to calibrate 16 sensors at a time – doubling the initial calibration capacity whilst also saving a significant amount of time and money, as well as enhancing workforce safety.

Accurate data

Juan Perez, wireless monitoring expert and Loadsensing product owner at Worldsensing, said: “Thanks to RPI’s LabStandard we could be confident that our wireless tiltmeters were calibrated accurately. This in turn meant the construction company could rely on accurate data to monitor any movement during the build. Having access to this information and real-time insights enables project managers to anticipate needs, manage their workforce, diminish risks, and even prevent disasters. The wireless configuration also eliminates the need for manual monitoring and expensive cabling thus allowing to validate the design through real-time data collection.”

Dave Smith, RPI sales engineer, said: “With its ability to verify performance via calibrations traceable to international standards, we were confident that LabStandard was the ideal solution for Worldsensing’s wireless operating system which relied on sensors to monitor tilt response and motion with extreme accuracy along the Grand Paris Metro tunnel.”

Construction of the new Grand Paris Metro tunnel started in 2015 and is expected to be completed in 2021.

www.rpiuk.com

www.worldsensing.com




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