All-digital cable length measuring instrument

An all-digital cable length measuring instrument is characterized by comprising a cable pressing mechanism, a cable walking mechanism, a cable length measuring mechanism and a display module; the cable length measuring mechanism comprises a photoelectric encoder and a microprocessor; the photoelectric encoder and the cable walking mechanism run synchronously; the cable walking mechanism drives a cable to rotate, and at the same time, the photoelectric encoder outputs pulse signals; the microprocessor is used for processing the pulse signals output by the photoelectric encoder in an interrupted manner, and the processed pulse signals are output through the display module. The all-digital cable length measuring instrument is accurate and visual in measurement value, saves time and labor, and is convenient to disassemble and assemble, convenient to carry, low in cost, wide in measuring range, easy and convenient to operate, and low in work environment requirements, and the operation is easy to learn.