Pressostato
A pressure-sensitive tube laid across the road that, in Italian regolarità events, detects the front wheels passing over it and triggers the timing. Alternative: a photocell.
A pressostato is a pressure-sensitive tube (pneumatic tube) laid across the road at Italian regolarità events. When the car's front wheels pass over it, the pressure sensor triggers the timing device connected to a printing chronometer. The pressostato is thus the Italian counterpart to the pneumatic tube test; photocells (fotocellule) are permitted as an alternative. For monitoring, the signal is often also recorded manually.
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Related terms
Light barrier
Photoelectric timing device that triggers the exact time as the vehicle passes – standard for timing special stages.
Light barrier test
A regularity test in which timing is controlled by photoelectric light barriers. Timing starts at the first barrier and ends at the second, triggered by the front of the car rather than the wheels.
Pneumatic tube test
A regularity test whose timing is triggered by driving over pneumatic tubes – similar to the light barrier test, but via the wheels.