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Patent Searching and Data


Title:
FORCE DETECTION APPARATUS
Document Type and Number:
Japanese Patent JPH0829272
Kind Code:
A
Abstract:

PURPOSE: To provide a force detection apparatus by which a force can be detected precisely even when an ambient temperature is changed and whose responsivity is excellent.

CONSTITUTION: A force detection apparatus is provided with a fixation stand 11, with an elastic plate 12 a part of which is fixed to the fixation stand and with a detection circuit 14 a part of which is connected to the elastic plate. The elastic plate 12 is composed of a ceramic material having a bendable property. The detection circuit 14 is composed of a bridge circuit provided with a strain-gage resistance element R11 which is fixed and bonded to the surface of the elastic plate 12 and whose resistance value is changed by a strain and with resistance elements R12, R13, R14 connected to the strain-gage resistance element so as to detect a change in resistance values of the strain-gage resistance elements R12, R13, R14 as a change in voltages. At least one out of the resistance elements R12, R13, R14 is formed of the same material as the strain- gage resistance element R11 on the surface of the elastic plate.


Inventors:
TAKAHASHI YUKIHIKO
YOSHIDA TETSUO
Application Number:
JP16195894A
Publication Date:
February 02, 1996
Filing Date:
July 14, 1994
Export Citation:
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Assignee:
TOKIN CORP
International Classes:
G01L1/22; G01B7/16; (IPC1-7): G01L1/22; G01B7/16
Attorney, Agent or Firm:
Yosuke Goto (3 outside)