Digital display crack detection device and detection method thereof

The invention discloses a digital display crack detection device and a detection method thereof; the detection device comprises a sensor module used for measuring linear displacement; the sensor module is arranged on a slide scale in a slide manner; two ends of the slide scale are provided with a first fixing hole for fixation; two ends of the sensor module are provided with second fixing holes used for fixing the sensor module; the detection device also comprises the following units: a controller module used for parsing and processing detection data; a signal conditioning module used for conditioning the signal sent by the sensor module, and sending the conditioned signal to the controller module; a data storage module used for storing the detection data; a button module used for artificial setting of the controller module; a display module used for displaying the detection data and result; an alarm module used for sending alarms according to the processing result of the controller module. The detection devi