| 摘要 |
PROBLEM TO BE SOLVED: To provide a model for sound measurement that can easily change the generated frequency, has a sound source storable in the model body without using a special member, and has a durability at which the model can sufficiently endure an impact force even if the model collides with a braking device.SOLUTION: The model for sound measurement includes: a model body emitted by emitting means; and guiding means for guiding the model body within a measurement region by penetrating the model body. The model body includes a sound source section having a sound source on an outer peripheral surface, and a power source box attachable to or detachable from one end of the sound source section in the axial direction. |
