Abstract: A system for determining the relative displacement of a rigid object is described herein. In one embodiment, the system includes three data sources positioned on an object. The data sources are configured to transmit data relating to positional displacement of the object. Each data source has predefined movement parameters based on the position of each data source on the object. In one embodiment, the system further includes a receiver unit configured to display positional information relating to the object based on the data received from each data source. The positional information represents a single valid solution set generated in part by eliminating positional movements that exceed the predefined movement parameters.

Abstract: A system for determining the relative displacement of a rigid object is described herein. In one embodiment, the system includes three data sources positioned on an object. The data sources are configured to transmit data relating to positional displacement of the object. Each data source has predefined movement parameters based on the position of each data source on the object. In one embodiment, the system further includes a receiver unit configured to display positional information relating to the object based on the data received from each data source. The positional information represents a single valid solution set generated in part by eliminating positional movements that exceed the predefined movement parameters.

Abstract: A method and apparatus utilizing a series of optical components and systems which effectively detect and locate electromagnetic imaging or detection systems or devices, such as cameras and passive infrared detectors. A light source is arranged in a specially-prescribed manner, and is used in conjunction with imaging optics to illuminate an area. Any electromagnetic imaging or detection system in the illuminated area is detected with either the user's eye directly, or with detection optics to determine the existence of such electromagnetic imaging or detection system.

Abstract: An environmental cabinet is described for simulating the effects of extended outdoor weathering on a sample material, the outdoor weathering effects including subjecting the sample material to cycles of at least the application of a corrosive solution and exposure to electromagnetic radiation. The cabinet comprises a chamber (11) for containing a sample material to be tested and a source (55) of electromagnetic radiation for subjecting the sample material within the chamber to cycles of radiation. Spray device (19) provides a cyclic spray of a corrosive solution to be deposited on the sample material within the chamber. Control unit subjects the sample material within the chamber to electromagnetic radiation and corrosive solution in a cyclic manner. The source (55) of electromagnetic radiation is disposed within a radiation transparent shield (57) passing through and sealed to the chamber.