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US5260962-Compact Lightweight ring laser gyro精品.pdf

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US5260962-Compact Lightweight ring laser gyro精品

HIIIIllllllllllllllllllllllllllllllllllllllllllllllIllllllllllllllllllllll _ USOO5260962A United States Patent [19] [11] Patent Number: 5,260,962 Hotaling [45] Date of Patent: Nov. 9, 1993 [54] COMPACT LIGHTWEIGHT RING LASER Primary Ejcaminer—Georgia Y. Epps GYRO Attorney, Agent, or Firm—Thomas C. Stover; Donald .1 . [75] Inventor: Steven P. Hotaling, Liverpool, NY. Singer [73] Assignee: The United States of America as [57] ABSTRACT represented by the Secretary of the Air Force, Washington, DC. A lightweight ring laser gyro (RLG) for vehicles in cluding space vehicles is provided wherein the housing [21] Appl. NO.: 894,507 of such RLG, instead ofbeing made of relatively heavy [22] Filed: May29, 1992 ULE glass, is made of low density silica aerogcl having a density of from 600 to 1000 mg/cc. Further, where the [51] Int. Cl.5 .. H015 3/083; G01C 19/64 prior art RLGs have three laser triangles, each mounted [52] US. Cl. .. 372/94; 356/350 in one of three blocks, which blocks are mounted on [58] Field of Search .. 372/94; 356/350