I.across [Brit əˈkrɒs, Am əˈkrɔs, əˈkrɑs]PRZYIM.Across frequently occurs as the second element in certain verb combinations (come across, run across, lean across etc.); for translations, look at the appropriate verb entry (come, run, lean
etc.). - Note that attraverso can be the Italian translation of both across and through.
The control unit feeds the sensor with a small electrical current and measures the resulting voltage drop across the sensor, which varies from near 0 volts to about 5 volts.
If the power supply and ground traces have significant impedance, the voltage drop across them may create noise voltage pulses that disturb other parts of the circuit (ground bounce).