Active Vibration Isolator.

The significance to the Air Force of this Research and Development effort has been the feasibility demonstration of an active vibration isolation system which can effectively isolate a reconnaissance sensor from disturbing forces and rotational motions in particular. A design investigation was performed for an Electromagnetic Active Isolator System Also referred to as the Active Vibration Isolator or AVI tp meet this need, and two flyable engineering model systems have been developed and tested. An extensive and rigorous series of tests were conducted at the Dynamic Analyzer Facility using various pitch, roll, vibration and target altitude conditions. The sensor employed in the Dynamic Analyzer tests was a KS-87B camera with an 18 inch focal length lens. These tests indicated that at every test frequency from 5 Hz to 300 Hz the resolution obtained by the Active Isolator exceeded the resolution obtained from the rigid mount. In general, the improvement in resolution was 50 to 65 greater with the Active Isolator over the rigid mount, but under certain conditions the improvement factor was much higher. Author