| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration measurement method for accurately measuring relative displacement vibration to the mounting section of a pulley section in an auto tensioner by separating the vibration of an engine from the displacement of vibration of the pulley section in the auto tensioner that is assembled in one piece with an engine. SOLUTION: The vibration of the engine assembled to a base stand is measured as displacement vibration data (1) around a reference point that is provided at the base stand, vibration in the pulley section in the auto tensioner that is assembled in one piece with the engine is measured as displacement vibration data (2) around a reference point that is provided at the base, and the displacement vibration data (2) are subtracted from the displacement vibration data (1), thus converting the vibration at the pulley section in the auto tensioner to relative displacement vibration to the mounting section of the auto tensioner.
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