Importance

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Abstract

Provided is a vibrometer capable of detecting vibration of a vibrator having a placement surface and vibrating horizontally in a predetermined direction. The vibrometer includes a revolving body and a gyroscope sensor. The revolving body has an outer surface including a curved surface that is curved outward when viewed in a direction along a predetermined axis. The revolving body is capable of rolling in the predetermined direction on the placement surface in such a manner that the curved surface comes into contact with the placement surface, with the predetermined axis forming an angle with the predetermined direction. The gyroscope sensor is fixed to the revolving body and is capable of determining the angular velocity around the predetermined axis. When viewed in the direction along the predetermined axis, the curved surface is shaped such that a portion of the curved surface at a greater distance along the curved surface from a reference portion within the curved surface is farther from the center of gravity of an assembly including the revolving body and members that roll together with the revolving body.

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First Claim