Figure 8
Measurement of the sphere of confusion of the goniometer circles (a) ϑ and (b) φ, evaluated from the lateral displacement of a polished sphere placed on a rigid support in the center of the assembly. Three repetitions of a full rotation are performed for each circle, separately. Repeatability of the movement is visible from the overlap of the data points. (Courtesy of Huber GmbH & Co., Germany.) |