Instrument for measuring displacement of anchor cable along path continuously

The invention discloses an instrument for measuring the displacement of an anchor cable along a path continuously, which can implement continuous measurement, and is large in measuring range, high in degree of automation and relatively low in cost. The measuring instrument comprises a measuring device, a data transmission device and a data analysis device, wherein the measuring device comprises a measuring unit, the measuring unit comprises a shell PVC (polyvinyl chloride) pipe, an MEMS (micro-electromechanical system) acceleration transducer and a data line, the MEMS acceleration transducer is arranged in the shell PVC pipe and is connected with the data line, the data transmission device comprises a data acquisition device, a wireless emitter, a wireless receiver, a data storage and a solar battery, the date acquisition device is connected with the measuring device, the wireless emitter and the solar battery, the data storage is connected with the data analysis device, the wireless receiver and the solar batter, and receives and transmits data by the wireless emitter and the wireless receiver, and the data acquisition device is connected with the data analysis device.