| 摘要 |
PURPOSE:To measure two-dimensional displacement quantity, by mounting a displacement converter or a first angle detector outputting the electric signal corresponding to the moving quantity of a wire rope and a second angle detector outputting the electric signal corresponding to the angle of rotation of a running block. CONSTITUTION:The moving quantity of one point 6 of a wire rope 6 at a reference position 3 is set to d1, the winding-in quantity or pay-out quantity of the wire rope 6 to a running block 2 at a measuring point position to d2 and the distance between the perpendicular V passing the center point 0 erected from the straight line AB on a plane ABC and a point C to P1. Now, when it is assumed that a measuring point 1 moved from the point C to a point C' with respect to the reference position 3, the up-and-down direction displacement quantity Dv and horizontal direction displacement quantity Dh of the measuring point 1 are calculated from formulae I, II. The electric signals corresponding to d1 and d2 outputted from a displacement meter 8 and an angle detector 9 are inputted to an operator performing addition, subtraction, multiplication, and division and square etc. and operated on the basis of the formulae I, II to obtain the vertical direction displacement quantity Dv and horizontal direction displacement Dh of the measuring point 1.
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