| 摘要 |
<p>Device for reading three-dimensional information which contains means (1, 2, 3; 46, 47, 48) for generating a variable magnetic field in the working space, a reading device (17) which contains two coaxially placed magnetometric sensors (18 and 19) with each three bi-orthogonal receiver induction coils and a peak point to be superposed on a point (M) to be read with unknown coordinates (x, y, z) and means to determine the coordinates (x, y, z) of the peak point on the basis of the information signal EΣ = e1 + e2 + e3 whereby ei is the amplitude of the signals which are induced in the three receiver coils (i = 1, 2, 3) of a sensor (18, 19), characterized in that it contains means (1, 2, 3, 46, 47, 48) to rotate the magnetic induction vector of the generated magnetic field in the working space around the zero point 0 of the coordinate system, means to register the maximum value of the amplitude E¿Σ,max? of the generalized information signal of the sensors (18 and 19) and the corresponding maximum turning angles α1, β1 and α2, β2 of the magnetic induction vectors in the horizontal and vertical planes respectively, means to determine the coordinates of the middle points of each of the sensors (18 and 19) and means to define the coordinates of the coordinate reading device (17) on the basis thereof.</p> |
