Special Piezoresistive Pressure Sensors for Measuring Wave Impact Pressure of Seasides

Climate change of the planet is leading to severe storms in the coastal areas of the world, which sometimes lead to floods and tsunamis. As a result, pressure sensors are installed in high-risk coastal areas. Some of the dykes on which the sensors are installed are located offshore and therefore not connected to an electricity network. Therefore, an autonomous system must be installed on site that can be used as a power supply. Such a system must be flexible and robust, and measure field data reliably. These systems basically consist of three parts: sensor data recording, power supply and data transmission.

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Piezoresistive pressure sensors with a normal frequency above one kHz are designed for this purpose; Two sensors are installed, one at the top and the other at the bottom of the sea wall. According to this system, acceleration, speed, wavelength, height and water pressure are measured. In addition, sea level monitoring and wave measurements are performed, and wind speed information is provided from meteorological stations.