DEVICE FOR MEASURING LENGTH

摘要

The invention relates to a device for measuring length, comprising a strip-shaped measuring body (12), a sensor/sensors (14) which is/are moved along said measuring body (12), whereby said sensor(s) detect(s) the information that is stored on the measuring body (12); and an evaluating unit which evaluates and further processes the information that is obtained from the sensor(s) (14). The invention is characterised by the following features: the measuring body (23) is situated in a closed channel (42) which is only open or can only be opened at at least one front end and fixing means (38) are provided inside the channel (42), these fixing means detachably fixing the measuring body (12) inside the channel (42) in such a way that if necessary, the measuring body (12) can be changed by withdrawal or insertion from the front end of the channel (42).