Optic fiber motor speed detection based on SCM ATmega16

Specifically for improving the status that the electric motor rotation rate was determined by comparatively fussy and inaccurate physics way in tradition,the singlechip ATmega16 was used to control counting and digital display was used.The structure of the fiber-optical photoelectric switch was used to the sensor signal receipt,then the frequency of the output pulse signal of the photoelectric switch was determined with frequency measurement method and singlechip.The device has reduced the cost of the rate detector,and has improved the measurement stability and reliability.It can used as the fast measurement standard for general industry,thus it has broad prospect.