The SM-140-XX-OMC wave radar is a perfect medium for the extreme demands of the harsh offshore environment.
The sensor emits a microwave FM chirp signal and receives the echo from the water surface. The signal propagation delay given by the distance from the antenna to the water surface causes a beat signal in the receiver. By means of advanced signal processing the beat frequency is converted to an accurate distance.
Due to the low frequency of operation (compared to laser sensors) fog, rain and water spray will not cause measurement problems.
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