摘要 |
Measuring electrode comprising a slot (4) in insulating material (1) and (3) and an electrically conductive material (2) which is arranged at the bottom of this slot. In a preferred embodiment the measuring electrode comprises an insulating material (1) onto which is deposited an electrically conductive layer (2) onto which in turn is deposited an insulating layer (3) which extends beyond the electrically conductive layer (2) in such a way that a slot is formed between the insulating materials (1) and (3). |