Stress relaxation measurement system and measurement method

The invention discloses a stress relaxation measurement system and a measurement method. The stress relaxation measurement system is connected to a to-be-tested rod piece and comprises a group of acceleration sensors, a signal acquisition device and a signal processing and analyzing device, wherein the group of acceleration sensors are mounted on the to-be-tested rod piece at intervals and connected with the signal acquisition device through a group of first signal transmission lines; the signal transmission device is connected with the signal processing and analyzing device through a group ofsecond signal transmission lines; the second signal transmission lines are in one-to-one correspondence to the first signal transmission lines. By means of the stress relaxation measurement system and the measurement method, the technical problems that traditional stress relaxation measurement systems and methods have measurement inaccuracy, pressure sensors are permanent components and cannot betaken down and reused and