Potential energy surface sensor chip and use of potential energy surfaces on a sensor chip and method for preventing a sensor chip from being soiled

摘要

In a sensor chip according to the existing art, contaminants in the medium flowing past the sensor chip result in deposits in the sensor region. ;A sensor chip (1) according to the present invention has, at least upstream from the sensor region (17), at least one potential surface (44, 47, 50, 53) that, by electrical interaction with the contaminants in the flowing medium, prevents precipitation in the sensor region (17).