Radar Velocity

This page will be dedicated to a radar velocity sensor.

27th January 2020

We have ordered some radar sensors from Acconneer, namely the A111, in the XM132, and XE132. And some radar lenses for these.

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  XE132 Front

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  XE132 Back

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  Acconneer Python Portable Exploration Tool in sparse short time FFT mode

The XE132 from acconeer comes with pre-compiled binary software, that allow it to connect via micro USB to a computer and create visualizations of the data.

The XE132 was set up as per the user guide, as was the Acconneer portable exploration tool.

Of interest to our application is the sparse short-time FFT visualisation as it allows the speed to be determined at different distances from the sensor. As can be seen from the gallery there is an FFT for each of the 6cm distant ranges, a matrix plot of the velocity-speed readout of the sensor.

Open question which need to be answered for this sensor are of question of how the lens impacts performance, if the Doppler shift of water can be measured, and at what angle to the flow is the Doppler shift successfully measured.

28th January 2020

Today we will test the XE132 in the flume. Just a basic test will be conducted. The radar sensor will be pointed at the flume surface and the short time fft visualization tool will be used to detect if a Doppler shift if present. Different angles and lens configurations will be tested.