| 摘要 |
PURPOSE:To reduce the thickness and price of a load detector by forming respective beams, equipped with strain gauges forming a Wheatstone bridge circuit, in plates. CONSTITUTION:Detection beams 6, 7, 9, and 10 are obtained by forming metallic materials of stainless steel, etc., in strip-shaped plates. On surfaces of two detection beams 6 and 7 where tensile strains are generated when a load operates on them, strain gauges 12 and 13 are provided individually. On surfaces of the other two detection beams 9 and 10 where compressive strains are generated when a load operates on them, strain gauges 14 and 15 are also provided individually. Those strain gauges 12-15 form a Wheatstone bridge circuit, and a movable body receiver 16 is provided to the free end of each detection beam. Thus, each detection beam is formed in a plate, so the thickness and price of the load detector are reduced. |
