Download or read book The AFGL Absolute Gravity Measuring System written by Robert L. Iliff and published by . This book was released on 1983 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The AFGL Absolute Gravity Measuring System written by Robert L. Iliff and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The AFGL Absolute Gravity Measuring System a Final Report and Operatint maintenacne Manual written by Robert L. Iliff and published by . This book was released on 1983 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The AFGL Air Force Geophysics Laboratory Absolute Gravity Measuring System A Final Report and Operating Maintenance Manual written by R. L. Iliff and published by . This book was released on 1983 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multiyear program at the Air Force Geophysics Laboratory (AFGL) has produced an instrument for absolute gravity measurements accurate to eight decimal places. This transportable instrument has been used to measure gravity at a calibration line through the central part of the United States, as well as at Hanscom AFB, Mass. The final version of the equipment is described. Data processing procedures, corrections applied, and the determination of these corrections are given. The report also gives operation and maintenance procedures for the apparatus. Also included in the report is a history of the development of the absolute-gravity measuring apparatus, including development of the first prototype instrument, experiments with an apparatus incorporating a falling chamber-within-a-chamber, the ideas behind this approach, and the shortcomings that caused a return to the single-chamber approach.
Download or read book New Techniques for Absolute Gravity Measurements written by James A. Hammond and published by . This book was released on 1983 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The AFGL Absolute Gravity System s Error Budget Revisited written by Robert L. Iliff and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The AFGL Air Force Geophysics Laboratory Absolute Gravity System s Error Budget Revisted written by Robert L. Iliff and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The error budget for the absolute gravity measuring instrument has been reevaluated for the purpose of locating and correcting an apparent bias that appeared in the data at the gravity lab early in 1981. The results of this analysis reveal a major equipment-induced error and minor data reduction errors. Revised gravity values at various sites across the U.S. and Sevres, France are given along with values obtained with other instruments at collocated sites. Keywords: Absolute gravity; Gravity; Interferometer.
Download or read book Accessions List written by United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division and published by . This book was released on 1983 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Geographic Survey Institute written by and published by . This book was released on 1982 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Research at AFCRL written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1976 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Geographical Survey Institute written by Kokudo Chiriin and published by . This book was released on 1989 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Research Papers written by and published by . This book was released on with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1988 with total page 1308 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book Balloon borne High Altitude Gravimetry written by and published by . This book was released on 1985 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Techniques for Absolute Gravity Measurements written by James A. Hammond and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The AFGL Absolute Gravity Program Air Force Geophysics Laboratory written by United States. National Technical Information Service and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
