Preprints
https://doi.org/10.5194/amt-2020-371
https://doi.org/10.5194/amt-2020-371

  02 Dec 2020

02 Dec 2020

Review status: a revised version of this preprint was accepted for the journal AMT and is expected to appear here in due course.

A low-cost mobile multidisciplinary measurement platform for monitoring geophysical parameters

Olivier F. C. den Ouden1,2, Jelle D. Assink1, Cornelis D. Oudshoorn3, Dominique Filippi4, and Läslo G. Evers1,2 Olivier F. C. den Ouden et al.
  • 1R&D Department of Seismology and Acoustics, Royal Netherlands Meteorological Institute, De Bilt, The Netherlands
  • 2Dept. of Geoscience and Engineering, Delft University of Technology, Delft, The Netherlands
  • 3R&D Department of Observations and Data Technology, Royal Netherlands Meteorological Institute, De Bilt, The Netherlands
  • 4Sextant Technology Inc., Marton, New-Zealand

Abstract. Geophysical studies and real-time monitoring of natural hazards, such as volcanic eruptions or severe weather events, benefit from the joint analysis of multiple geophysical parameters. However, typical geophysical measurement platforms still provide logging solutions for a single parameter, due to different community standards and the higher cost rate per added sensor.

In this work, the infrasound-logger is presented, which has been designed as a low-cost mobile multidisciplinary measurement platform for geophysical monitoring. The platform monitors in particular infrasound, but concurrently measures barometric pressure, accelerations, wind flow and uses the Global Positioning System (GPS) for positioning of the platform. Due to its digital design, the sensor platform can readily be integrated with existing geophysical data infrastructures and be embedded in the analysis of geophysical data. The small dimensions and lower cost price per unit allow for unconventional experimental designs, for example high density spatial sampling or deployment on moving measurement platforms. Moreover, such deployments can complement existing high-fidelity geophysical sensor networks. The platform is designed using digital Micro-electromechanical Systems (MEMS) sensors that are embedded on a Printed Circuit Board (PCB). The MEMS sensors on the PCB are: a GPS, a three-component accelerometer, a barometric pressure sensor, an anemometer and a differential pressure sensor. A programmable microcontroller unit controls the sampling frequency of the sensors, and the data storage. A waterproof casing is used to protect the mobile platform against the weather. The casing is created with a stereolithography (SLA) Formlabs 3D printer, using durable resin.

Thanks to a low power consumption (9 Wh over 25 days), the system can be powered by a battery or solar panel. Besides the description of the platform design, we discuss the calibration and performance of the individual sensors.

Olivier F. C. den Ouden et al.

 
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Olivier F. C. den Ouden et al.

Olivier F. C. den Ouden et al.

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