Measure pressure based Waves with the Aanderaa Wave Sensors- compact fully integrated sensors for measuring wave and tide conditions
The 5218 wave sensor is designed to be mounted on the Aanderaa SeaGuard top-end plate or connected to SmartGuard using AiCaP CANbus or in other measurement systems using the RS-232 interface.
The 5218R wave sensor sensor is designed for use with long cables by means of RS-422 full duplex interface.
Both wave sensors are based on a silicon piezoresistive pressure sensor. The pressure measurements are sampled and temperature compensated by an advanced Digital Signal Processor.
The wave sensor application areas are in fixed installations, either deployed in a seabed installation in shallow waters, or mounted onto a fixed structure in the upper water column.
The tide measurement is an average of the hydrostatic pressure measured over a time period of 10 seconds to 8 minutes (integration time configurable by the user). The update interval is between 1 second and 255 minutes.
The wave measurements are based on the pressure time series measured over a time period of 64 second to 17 minutes (configurable by the user). The update interval is between 1 second and 255 minutes.
The wave and tide sensor output parameters are:
Pressure
Tide Level
Tide Pressure
Temperature
Significant wave height
Maximum wave height
Mean period
Peak period
Energy wave period
Mean zero crossing period
Wave steepness and irregularity of sea-state
Since all calibration and temperature compensation data are stored inside the sensor, the parameters are by default presented directly in engineering units without any external calculation.