PURPOSE: To improve measuring accuracy by disposing the strain gages in a fixing part in such a way that the longitudinal direction thereof intersects orthogonally with the deformation direction of a beam and the strain gage in a deforming part in such a way that the longitudinal direction thereof conforms to the deforming direction of the beam.
CONSTITUTION: One end of a plate-like beam 1 formed by pressing a stainless steel or the like is used as a stationary part 2 and is formed with mounting holes 5 to be screwed 3 to a base 24. The other end of the beam 1 is used as a pressure receiving part 6 to be a free end, and is formed with a hole 8 to which the load of a measuring object 7 is applied. Four strain gages R1, R2, R3, R4 are provided on the beam 1, and the gages are connected in a pattern by conducting parts 11, thereby forming a bridge circuit 12. The gages R1, R2 are so disposed that the longitudinal direction thereof intersects orthogonally with the deforming direction of the beam 1 and the gages R3, R4 are so disposed that the longitudinal direction thereof conforms to the deforming direction of the beam 1.
SAKAMOTO KOUICHIROU
MIZUSHIMA SHINICHI
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