| 摘要 |
<p>A small ruggedized interferometer, which can operate efficiently in spite of being subject to ambient mechanical vibrations. A prior art structure was analyzed to diagnose its performance deficiencies. The successful method is step by step structural solution, beginning with the lowest frequency mechanical vibration resonance in the interferometer, restructuring to raise that frequency, then proceeding to the next lowest mechanical vibration resonance frequency in the interferometer, and so on. The movable mirror (60) is carried by a parallelogram linkage (76, 78). The minimum resonance in the present interferometer has been raised to approximately 1000 Hertz. A first (lowest) frequency resonance problem solved was due to the motor (64) and its interface with the movable mirror (60). A second resonance problem solved was due to the vibration of the movable mirror (60) itself. And a third resonance problem solved was due to the bearing means (142) which pivotally connect the parallelogram linkage (76, 78) to the frame and to the movable mirror (60).</p> |
