Title:
VIBRATION MEASURING INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2007/088763
Kind Code:
A1
Abstract:
A vibration measuring instrument comprising a magnet and a coil arranged around
the magnet, and a supporting means for supporting the magnet or the coil relatively
and freely movable in the axial direction, an electromotive force being generated
in the coil when the magnet or the coil moves relatively in the axial direction,
characterized in that the supporting means makes the center of the coil in the
axial direction coincide substantially with the center of the magnet in the axial
direction when the magnet or the coil is under a stationary state. Output and S/N
ratio can be increased by regulating the relative movement of the magnet and the
coil to within an optimal range, and precision and reliability of the vibration
measuring instrument are enhanced.
Inventors:
KAMO SHOTARO (JP)
SUZUKI KAZUSHI (JP)
FUKADA NAOTAKA (JP)
KATSUOKA KENTAROU (JP)
IZAWA FUMINOBU (JP)
SUZUKI KAZUSHI (JP)
FUKADA NAOTAKA (JP)
KATSUOKA KENTAROU (JP)
IZAWA FUMINOBU (JP)
Application Number:
PCT/JP2007/051130
Publication Date:
August 09, 2007
Filing Date:
January 25, 2007
Export Citation:
Assignee:
STAR MFG CO (JP)
KAMO SHOTARO (JP)
SUZUKI KAZUSHI (JP)
FUKADA NAOTAKA (JP)
KATSUOKA KENTAROU (JP)
IZAWA FUMINOBU (JP)
KAMO SHOTARO (JP)
SUZUKI KAZUSHI (JP)
FUKADA NAOTAKA (JP)
KATSUOKA KENTAROU (JP)
IZAWA FUMINOBU (JP)
International Classes:
G01H11/02; G01P15/11
Foreign References:
| JP2000515960A | 2000-11-28 | |||
| JPS5571917A | 1980-05-30 | |||
| JPH11183513A | 1999-07-09 | |||
| JPS638623U | 1988-01-20 |
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