| 摘要 |
PURPOSE:To measure the moving distance of a movement detecting member or an object which is to be measured and is coupled thereto always with good accuracy and high resolving power by detecting the change of the restoring force of a spring by means of a lod cell and measuring the moving distance of said member or object. CONSTITUTION:The load cell 11 is constituted with a straight gage and detects the stress to be exerted thereto in the vertical direction. The detection signal is supplied via a lead wire 14 to a detecting circuit (not shown). The restoring force F=kx is generated by the contraction of a spring 12 (spring constant k) by (x) and is applied to the cell 11 if it is assumed here that a movement detecting rod 13 moves by (x) from the state shown in the figure. The cell 11 generates the signal proportional to the force exerted thereto and therefore the determination of (x) is made possible by said signal. The moving distance is thus measured always with good accuracy and high resolving power.
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