A method to avoid contaminations on a sensor chip and the use of an additional heater, on a sensor chip

摘要

In the case of a sensor chip according to the prior art, impurities of a flowing medium in the range of a sensor region and the permanently soiled, whereby, to a negative influence on the measuring reaction of the membrane. Dollars a in the case of an inventive sensor chip (1) is a supplementary heater (39) is arranged, of the upstream and in a distinct distance from the sensor region is arranged. This leads to the fact that the impurities of the flowing medium in the region of the supplementary heater (39), and that is to say, therefore, no longer to the sensor region (17) can pass.