Aiming at problem that frequency measurement system of vibrating wire sensor is easily affected by noise

resulting in decreased precision of frequency measurement

introduce a high precision frequency measurement method based on M-Rife algorithm. Combined with the hardware structural characteristics and programming mode of ARM processor

the M-Rife algorithm is transplanted to ARM processor

and high precision frequency measurement system of vibrating wire sensor is realized. Experimental results show that the relative error of frequency measurement of system is less than 0. 025 %

and the system has strong anti-interference ability.