Title:
FORCE SENSOR
Document Type and Number:
WIPO Patent Application WO/2018/029790
Kind Code:
A1
Abstract:
This force sensor detects at least one component among components including forces in the respective axial directions in an XYZ three-dimensional coordinate system and moments about the respective axes, the force sensor comprising: a support body arranged on the XY plane; a deforming body joined to the support body; and a detection circuit that outputs an electric signal indicating a force applied to the deforming body. The deforming body includes: a first deforming part having a first spring constant; and a second deforming part having a second spring constant that is different from the first spring constant. The detection circuit outputs a first electric signal corresponding to the deformation of the first deforming part and a second electric signal corresponding to the deformation of the second deforming part, each electric signal corresponding to the applied force, and the detection circuit determines whether or not the force sensor is functioning normally on the basis of a change in ratio between the first electric signal and the second electric signal corresponding to the applied force.
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Inventors:
OKADA KAZUHIRO (JP)
OKADA MIHO (JP)
OKADA MIHO (JP)
Application Number:
PCT/JP2016/073487
Publication Date:
February 15, 2018
Filing Date:
August 09, 2016
Export Citation:
Assignee:
TRI FORCE MAN CORP (JP)
International Classes:
G01L25/00; G01L5/16
Foreign References:
| JP3444952B2 | 2003-09-08 |
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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