| 摘要 |
PROBLEM TO BE SOLVED: To provide a noise measuring method capable of specifying quickly a noise source which is a measuring object.SOLUTION: A housing of an assist motor is imaged by infrared thermography in the state where an electrically-driven power steering device is operated, and a temperature variation amount of each pixel of temperature image data imaged by an image processing system is calculated, to thereby calculate a temperature variation amount of the housing. Then, a noise source of the housing is specified based on the temperature variation amount of the housing. |
