SAFETY SWITCH

The invention relates to a safety switch (1). The safety switch (1) has a reading head (2) and an actuator (3) having a transponder (4) and being movable relative to the reading head (2). Encoded signals of the transponder (4) are detectable by means of the reading head (2). As a means for detecting encoded signals, the reading head (2) has a resonant circuit (6) controlled by a processor unit, with the distance between the actuator (3) and reading head (2) being determined by means of an amplitude evaluation of the signals of the transponder (4) detected with the resonant circuit (6). Controlsignals are generated as a function of the distance signals thus determined. 本发明涉及种安全开关(1)，具有读头(2)和相对于所述读头(2)能运动的、具有应答器(4)的操作器(3)。借助于所述读头(2)能感测所述应答器(4)的编码信号。所述读头(2)作为用于感测编码信号的感测器件具有由计算器单元控制的振荡回路(6)，其中，通过对所述应答器(4)的由所述振荡回路(6)感测的信号的振幅评估获取操作器(3)和读头(2)之间的距离。根据这样获取的距离信号生成控制信号。