Author: Robert L. Iliff
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 166
Book Description
The AFGL Absolute Gravity Measuring System
Author: Robert L. Iliff
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 166
Book Description
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 166
Book Description
New Techniques for Absolute Gravity Measurements
Author: James A. Hammond
Publisher:
ISBN:
Category : Acceleration (Mechanics)
Languages : en
Pages : 16
Book Description
A brief history and the present status of a system for the measurement of absolute gravity is presented. Various corrections to the measured value are also given.
Publisher:
ISBN:
Category : Acceleration (Mechanics)
Languages : en
Pages : 16
Book Description
A brief history and the present status of a system for the measurement of absolute gravity is presented. Various corrections to the measured value are also given.
Accessions List
Author: United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 606
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 606
Book Description
Bulletin of the Geographic Survey Institute
Author:
Publisher:
ISBN:
Category : Cartography
Languages : en
Pages : 680
Book Description
Publisher:
ISBN:
Category : Cartography
Languages : en
Pages : 680
Book Description
Bulletin of the Geographical Survey Institute
Author: Kokudo Chiriin
Publisher:
ISBN:
Category : Geodesy
Languages : en
Pages : 518
Book Description
Publisher:
ISBN:
Category : Geodesy
Languages : en
Pages : 518
Book Description
Report on Research at AFCRL.
Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 228
Book Description
Balloon-borne, High Altitude Gravimetry
Author:
Publisher:
ISBN:
Category : Acceleration (Mechanics)
Languages : en
Pages : 90
Book Description
Gravity measurements from a high-altitude balloon were made in late September to verify global and upward-continued gravity models. The first flight was intended to provide balloon motion and environment data with a preliminary estimate of the quality of measured gravity values. A balloon operates in a dynamic, largely unpredictable environment; thus, the gravimeter senses accelerations due to balloon motions as well as gravitational acceleration. Independent measurements of balloon motions from an intertial navigation package (three accelerometers, three rate gyros, three-axis magnetometer and two tiltmeters) combined with ground tracking (X, Y and Z position and velocity) will allow for separation of balloon-induced accelerations from gravitational acceleration to 1 mGal, using tracking data to an accuracy of about 5 cm/sec in velocity for Eotvos corrections, and position to 1 m. This first engineering flight was planned to coincide with the lowest seasonal wind velocities over Holloman AFB, where AFGL has its permanent balloon launch facility. Mild wind velocities are desired to provide the most benign environment possible during the testing phase, and to keep the balloon within tracking range. The experiment design, launch, and flight operations, and a first look at the data are presented.
Publisher:
ISBN:
Category : Acceleration (Mechanics)
Languages : en
Pages : 90
Book Description
Gravity measurements from a high-altitude balloon were made in late September to verify global and upward-continued gravity models. The first flight was intended to provide balloon motion and environment data with a preliminary estimate of the quality of measured gravity values. A balloon operates in a dynamic, largely unpredictable environment; thus, the gravimeter senses accelerations due to balloon motions as well as gravitational acceleration. Independent measurements of balloon motions from an intertial navigation package (three accelerometers, three rate gyros, three-axis magnetometer and two tiltmeters) combined with ground tracking (X, Y and Z position and velocity) will allow for separation of balloon-induced accelerations from gravitational acceleration to 1 mGal, using tracking data to an accuracy of about 5 cm/sec in velocity for Eotvos corrections, and position to 1 m. This first engineering flight was planned to coincide with the lowest seasonal wind velocities over Holloman AFB, where AFGL has its permanent balloon launch facility. Mild wind velocities are desired to provide the most benign environment possible during the testing phase, and to keep the balloon within tracking range. The experiment design, launch, and flight operations, and a first look at the data are presented.
Environmental Research Papers
Author:
Publisher:
ISBN:
Category : Environmental geology
Languages : en
Pages : 410
Book Description
Publisher:
ISBN:
Category : Environmental geology
Languages : en
Pages : 410
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1302
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1302
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages :
Book Description