Patent ID: 7312861
Filing Date: 2007-12-25
Classification: G01B

Abstract:
1. A method to measure an angular orientation between two surfaces using: A. a first mounting frame mounted on a first surface, B. a second mounting frame mounted on a second surface, C. a mirror that is attached to said second mounting frame, D. a collimated light source attached to said first mounting frame which projects a first collimated light beam toward said mirror, E. a position indicating scale attached to said first mounting frame which is adapted to measure the position of said first collimated light beam, F. said first collimated light beam is reflected back toward said position indicating scale, G. the position of said first collimated light beam on said position indicating scale is determined, H. a plane is defined by the path of said first collimated light beam between said first mounting frame and said second mounting frame and by said position indicating scale, and I. the distance between said first mounting frame and said second mounting frame is measured, whereby said angular orientation between said first surface and said second surface is determined in said plane based on the position of said first collimated light beam on said position indicating scale.