| 摘要 |
A method for adjusting the switching threshold of a contactlessly operating proximity switch comprising a sensor (1) for converting a physical variable into an electric sensor signal S(x), a control unit (3) for evaluating the electric sensor signal S(x) and for generating a binary switching signal by comparing with a switching threshold Sein, and comprising an operating element (4) for adjusting the switching threshold Sein according to a control value P, wherein the control value P is mapped in a non-linear manner on the movement path of the operating element (4), wherein the resolution of the operating element (4) is largest when the electric sensor signal S(x) is in the vicinity of the switching threshold Sein(P) and decreases in a non-linear manner at increasing distance such that the influence of the switching threshold Sein(P) is fine in the vicinity of the current sensor signal S(x) and increasingly coarser at increasing distance. Furthermore, the positive and negative difference ∆(Sein, P,...) between the electric sensor signal S(x) and the switching threshold Sein(P) are indicated using a strip display (5) operating in point mode, wherein a linear relationship exists between the scaling of the operating element (4) and the strip display (5) preferably operating in point mode. The invention further relates to a proximity switch for carrying out the method. |
