A pressure sensor can be deployed below the range of the tidal water level and used in collaboration with a barometer to measure tide height and wave information. An sea level barometer is used to correct the sensor pressure for local atmospheric pressure in order to to give correct tide and wave heights. The tide level is proportional to pressure and the results are shown in engineering units on the real-time display.

Most pressure sensors offering a voltage or current output can be used in with the logger unit within the tide monitoring instrument and suitable sensor configuration factors easy installed.

Wave Parameters

The pressure sensor gives a continuous output and setting the recorder at a suitable sample rate will enable local wave information to be observed. As long as a suitable network connection is available wave traces can be observed in real-time. Wave parameters such as height, significant wave height and period can be determined.

The examination of wave information will not prevent the tide data from being recorded and automatically reported.

For fixed site installations and where it is not practical to deploy sensors underwater then an acoustic wave sensor can be used. Acoustic sensors are ideal where low sample rates are required ie just tide information, where the distance from the sensor to the tide monitoring instrument are located some distance from each other and where tide ranges are not already known. Most acoustic sensors have an averaging system built in to remove the effects or water spay and false echos.

Any acoustic sensor offering a voltage or current output can be used. Sensor calibration factors are easily stored within

Example system shows a

Microflex-C sensor installed

however other sensors can be

used offering a greater range

or faster update rate.