发明名称 |
METHOD FOR DETERMINING TRUE MERIDIAN DIRECTION AND FIBER-OPTICAL GYROCOMPASS FOR METHOD EMBODIMENT |
摘要 |
FIELD: navigation. SUBSTANCE: fiber-optical gyroscope is positioned so that its sensitivity vector is in horizon plane. Then fiber-optical gyroscope is turned about axis perpendicular to horizon plane so that its sensitivity vector remains in horizon plane. Fiber-optical gyroscope is turned by rotation at constant angular velocity. Output signal of fiber-optical gyroscope is measured by its phase detection at rotational frequency with determination of output signal phase of fiber-optical gyroscope corresponding to azimuth. Gyrocompass has fiber-optical gyroscope, unit of analog-to-digital conversion connected to processing and indication unit. Gyrocompass includes device which rotates fiber-optical gyroscope, fiber-optical gyroscope rotation pickup, unit which forms frequency and phase signal of fiber-optical gyroscope rotation, and unit of phase processing of fiber-optical gyroscope signal. EFFECT: reduce time of determination of true meridian direction; higher accuracy. 5 cl, 5 dwgi
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申请公布号 |
RU2115889(C1) |
申请公布日期 |
1998.07.20 |
申请号 |
RU19960119199 |
申请日期 |
1996.09.26 |
申请人 |
SANKT-PETERBURGSKIJ GOSUDARSTVENNYJ UNIVERSITET TELEKOMMUNIKATSIJ IM.PROF.M.A.BONCH-BRUEVICHA |
发明人 |
MATISOV I.A.;NIKOLAEV V.A.;STRIGALEV V.E. |
分类号 |
G01C19/38;G01C19/64;(IPC1-7):G01C19/38 |
主分类号 |
G01C19/38 |
代理机构 |
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