U.S. Geological Survey Professional Paper, Issue 1390U.S. Government Printing Office, 1987 |
From inside the book
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Page
... azimuth determining system , to run survey control lines , and the development for the National Aeronautics and Space Adminstration of the inertial navigators that guided the round - trip Apollo flights to the Moon . In these ...
... azimuth determining system , to run survey control lines , and the development for the National Aeronautics and Space Adminstration of the inertial navigators that guided the round - trip Apollo flights to the Moon . In these ...
Page 15
... AZIMUTH AXIS SA X Y ( EAST ) SA IA IA OA Z OA SA OA ΙΑ Z ( LOCAL VERTICAL ) 35 ° 16 ' X ( NORTH ) THREE - GYRO ARRAY 2 3 IA IA 60 ° TRIAD EXPLANATION SA SPIN AXIS IA INPUT AXIS OA OUTPUT AXIS ΔΙΑ 60 ° ACCELEROMETER FIGURE 6. - Gyro and ...
... AZIMUTH AXIS SA X Y ( EAST ) SA IA IA OA Z OA SA OA ΙΑ Z ( LOCAL VERTICAL ) 35 ° 16 ' X ( NORTH ) THREE - GYRO ARRAY 2 3 IA IA 60 ° TRIAD EXPLANATION SA SPIN AXIS IA INPUT AXIS OA OUTPUT AXIS ΔΙΑ 60 ° ACCELEROMETER FIGURE 6. - Gyro and ...
Page 19
... azimuth axis ( color coded in black ) , the elevation axis ( color coded in red ) , and the roll axis ( color coded in blue ) ; the termini of these axes are seen to be in the elevation gimbal , the roll gimbal , and the enclosing case ...
... azimuth axis ( color coded in black ) , the elevation axis ( color coded in red ) , and the roll axis ( color coded in blue ) ; the termini of these axes are seen to be in the elevation gimbal , the roll gimbal , and the enclosing case ...
Page 20
... AZIMUTH AXIS GIMBAL TORQUE MOTOR ELEVATION AXIS TORQUE MOTOR ELEVATION OR MIDDLE AXIS IMU ROLL GIMBAL ROLL AXIS TORQUE MOTOR STABLE PLATFORM AZIMUTH AXIS RESOLVER SUPPORT HOUSING OR CASE DIRECTION OF FLIGHT ROLL OR OUTER AXIS ROLL ...
... AZIMUTH AXIS GIMBAL TORQUE MOTOR ELEVATION AXIS TORQUE MOTOR ELEVATION OR MIDDLE AXIS IMU ROLL GIMBAL ROLL AXIS TORQUE MOTOR STABLE PLATFORM AZIMUTH AXIS RESOLVER SUPPORT HOUSING OR CASE DIRECTION OF FLIGHT ROLL OR OUTER AXIS ROLL ...
Page 24
... azimuth stabilization loop , obviously any “ yaw " motion of the aircraft simply tends , because of slight amounts of friction in the gim- bals , to drag the stable platform around its azimuth axis , and the deviation signal from the z ...
... azimuth stabilization loop , obviously any “ yaw " motion of the aircraft simply tends , because of slight amounts of friction in the gim- bals , to drag the stable platform around its azimuth axis , and the deviation signal from the z ...
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Common terms and phrases
acceleration accelerometer accuracy aerial profiling AERIAL SURVEY air loop airborne angular APT sys APT system axes azimuth CALIBRATE AND ALINE commands components Compute IMU CONTROL POINT DeHavilland Twin Otter device Draper Laboratory Earth electrical electronics elevation error field flight mission flight path foregoing function ground-control points gyro Hanscom Field Harry Diamond horizontal IMU and tracker incl inertial measurement unit inertial navigator input axis instrument system intervals Kalman filter keyboard laser beam laser profiler laser tracker latitude magnetic tape mode Model motion mounted newton meter optics orientation orthogonal output performance plasma display position coordinates precession precision printer processor profiling of terrain pulse retroreflector target rotation rotor schematic sequence signal SIXTY SECOND specific force spin axis stable platform subsystems temperature terrain profiles terrain system thermal tion torque motors tracker gimbal angles tracking U.S. Geological Survey update velocity vertical