Train Photographs

ETR 470 train

A pretty picture of an ETR 470 similar to the test train, but in an even prettier Swiss location.

Pressure sensors inside train

Two pressure sensors measuring pressures inside a train. The tiny transducer is inside its plate. It samples through a 1mm hole at the centre of the plate.

Pressure sensor outside train

Transducer plate mounted on the outside of a train.

Distant view of sensor outside train

A more distant view showing that the externally mounted transducer is unlikely to disrupt the airflow along the train.

The test train closely resembled the following photographs provided by
Alstom.