Patent ID: 8536862
Filing Date: 2013-09-17
Classification: G01Q,G01R

Abstract:
1. A three-dimensional field obtaining apparatus for obtaining φ(x, y, z), wherein x, y, z show coordinate parameters in a rectangular coordinate system defined by X, Y, Z directions which are orthogonal to one another, or obtaining a function derived by differentiating φ(x, y, z) with respect to z one time or more, φ(x, y, z) being a field function showing a three-dimensional scalar field which is formed at least at a circumference or inside of an object due to the existence of said object and satisfies the Laplace equation, said three-dimensional field obtaining apparatus comprising: a measured value group obtaining part for obtaining a distribution of measured values of one type in a measurement plane as a two-dimensional first measured value group and obtaining a distribution of measured values of another type in said measurement plane as a two-dimensional second measured value group, said measurement plane being set outside or inside an object and satisfying z=0, said distribution of measured values of one type coming from said three-dimensional scalar field, said distribution of measured values of another type coming from said three-dimensional scalar field; and an operation part for obtaining φ