Comparison Between Absolute Orientation Determination Methods of Doubly Rotated Blanks

In this paper, comparison between absolute orientation determination methods of doubly rotated blanks is given. To measure doubly rotated cut, classical goniometers need several manipulations of the blanks (for example 90° shift rotation) and they are often achieved manually inducing imprecision. Furthermore, a reference baseline in the sample is necessary to know the final cut angles. With the presented method, the blank is measured without any manipulation and no reference is needed. It is possible to define any orientation from the X-ray diffraction positions from two or three different atomic planes. With this method, the orientation of the resonator, which already machined into a circular shape are also easily measurable.