Abstract
This paper describes a product quality check of micro fan vibration by using the fluctuation mechanism. The micro fans are used by many electronics equipment for cooling. It is essential for present industry. But, the micro fan has checked by surveyor who has experience skills which using their auditory organs and tactual sense. It is not easy that surveyor masters their skills, and large errors are produced by their mental and physical condition when they survey. Now, new evaluation and diagnosis method is needed. This study focuses to moving of surveyor's hands, and uses fluctuation mechanism and inclining angle change mechanism. The experiment measured the acceleration of micro fan's vibration, and took the deviation between the acceleration overall maximum level and minimum. These results show one of methods that make sure of the diagnosis of micro fan's vibration.