High-accuracy geographic sense measuring method in convex hyperboloid Hindle detection

A high-accuracy geographic sense measuring method in convex hyperboloid Hindle detection relates to the field of aspherical surface detection and solves the problems of an existing method is low in accuracy, poor in repeatability and inaccurate in detection. The method comprises the steps of adjusting an interferometer, a Hindle ball mirror and a convex hyperboloid to carry out inference detection on the convex hyperboloid to enable a surface shape error root mean square value to be the minimum, placing a target ball of a laser tracker at the outer focal point of the convex hyperboloid, carrying out interference detection on the surface of the convex hyperboloid, adjusting the inclination and the defocus to the minimum, measuring space coordinates of the convex hyperboloid, using the laser tracker to measure the surface characteristics of the convex hyperboloid, moving the convex hyperboloid away, carrying out interference detection on the Hindle ball mirror, adjusting the inclination and the defocus to the minimum, placing the target ball of the laser tracker at the inner focal point of the convex hyperboloid, carrying out interference detection on the surface of the convex hyperboloid, adjusting the inclination and the defocus to the minimum, measuring space coordinates of the convex hyperboloid, and constructing and detecting an optical axis line and an interval to calculate out the geometric senses. The measuring accuracy of the high-accuracy geographic sense measuring method is about 0.05mm. Furthermore, the high-accuracy geographic sense measuring method is high in accuracy and good in repeatability.