Striking device and natural frequency measuring device
US10969312B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Feb 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0688
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are a striking device and a natural frequency measuring device capable of simply and accurately measuring a natural frequency of a system including force detector. The striking device includes an arm capable of swinging around a spindle, and a steel ball arranged in an end part of the arm on a side opposite to the spindle. The spindle is supported by a supporting part capable of lifting up and down relative to a post erected on a magnet stand. A supporting part for supporting a supporting plate is arranged at a position in the post and above the supporting part. A permanent magnet is placed above the supporting plate. The steel ball falls down in an arc shape from a standby height position when the permanent magnet is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.