| 摘要 |
PROBLEM TO BE SOLVED: To provide a simplified stress detector which can detect a plurality of stresses acting from many directions, for the various kinds of stress such as torsion, tension and compression. SOLUTION: A force receiving body 1 formed of a material of low extendability and very high sealability having a hollow three-dimensional shape filled with air in its inside, deformed by the stress and restored when the stress is released, and receives the plurality of stresses acting from many directions to substitute a change of the stresses by a change in increase and decrease of air pressure, the change in the increase and decrease of the air pressure is detected by a small air pressure sensor 4 of the present invention to output an electric signal, the electric signal output from the sensor 4 is amplified and stabilized by a control circuit 5 to be output to the outside. The stress is detected thereby. COPYRIGHT: (C)2004,JPO&NCIPI
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