Title:
DEVICE FOR MEASURING ROTATION ANGLE ACCELERATION
Document Type and Number:
WIPO Patent Application WO/2013/190931
Kind Code:
A1
Abstract:
Provided is a device for measuring rotation angle acceleration in which noise caused by acceleration other than a specific rotation angle acceleration is reduced by supporting an oscillator using a spring structure capable of considerably suppressing motion in directions other than the specific rotational direction, when acceleration other than the specific rotation angle acceleration is a problem in terms of noise and when low-cost manufacture is required. A device for measuring rotation angle acceleration integrally manufactured by semiconductor micro-fabrication, comprising: an oscillating body that rotates around a rotational axis; a plurality of nodes for supporting the oscillating body at points at a radius r from the rotational axis; a plurality of parallel quadrangular links having arms of a length r for causing the nodes for supporting the oscillating body to move circularly about the rotational axis; a support part for supporting the fixed nodes of the parallel quadrangular links; a rotation angle detection means for detecting the rotation angle; and computation means for computing the rotation angle acceleration from the rotation angle.
Inventors:
YAMAMOTO YASUYUKI (JP)
Application Number:
PCT/JP2013/063505
Publication Date:
December 27, 2013
Filing Date:
May 15, 2013
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
International Classes:
G01C19/5705; G01P15/12; G01P15/13; G01P15/14
Foreign References:
| JP2001147236A | 2001-05-29 | |||
| JPS6340866A | 1988-02-22 | |||
| JP2012132856A | 2012-07-12 | |||
| JP2010286838A | 2010-12-24 | |||
| JP2012062789W | 2012-05-18 |
Other References:
See also references of EP 2865990A4
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