快速中高等精度陀螺罗盘方案探讨  

Discussion on the Plan of the Quick and Medium High Accuracy Gyrocompass

作　　者：周吉人 林昌干 

机构地区：[1]北京控制器件研究所

出　　处：《中国惯性技术学报》1992年第2期36-48,30,共14页Journal of Chinese Inertial Technology

摘　　要：本文从找北精度出发把陀螺罗盘分为四类:低等精度、中等精度、中高等精度和高等精度。根据精度等级的不同,确定了不同的可行性研制途径:低等精度和中等精度研制途径为捷联式速率陀螺罗盘;中高等精度和高等精度研制途径为摆式陀螺罗盘。针对中高等精度快速性的技术要求:找北精度为20″～40″(1σ),找北时间为五分钟,提出了两种摆式陀螺罗盘设计方案:局部球面静压气浮摆式陀螺罗盘;增大吊带截面积或缩短吊带长度的吊带摆式陀螺罗盘。为继续缩短找北时间和提高找北精度,本文提出了角度信息测量自动化以及用最小二乘法进行数据处理等方法。According to the north-seeking accuracy,the gyrocompass style can be classified into four categories:low,medium,medium high and high precisions.Since they are different from each other in accuracy,for low and medium precisions,the strapdown rate gyrocompass is used,for medium high and high precisions,the pendulous gyrocompass is used.For the specification of the medium-high quick-acting,the north-seeking precision is 20'～40'(lo)and the north-seeking time is five minutes.Two design plans of the pendu- lous gyrocompass are put forward:local spherical hydrostatic gas-bearing pendulous gyro- compass and the hanging belt pendulous gyrocompass,of which the hanging belt's length is contracted or its cross section area is widened.To increase the north-seeking precision and to contract the north-seeking time further,the automatic measurement of angle information and the data processing by least square method are proposed here.

关 键 词：陀螺罗盘 捷联式 速率陀螺 摆式 陀螺经纬仪 陀螺摆 地球速率 地球自转角速度 最小二乘法 随机漂移 

分 类 号：O3[理学—力学]