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Development Of A Microwave Modulated Dual Optical Wavelength Geodetic Distance Measuring Instrument
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Book Synopsis Development of a Microwave Modulated, Dual Optical Wavelength Geodetic Distance-measuring Instrument by : J. C. Owens
Download or read book Development of a Microwave Modulated, Dual Optical Wavelength Geodetic Distance-measuring Instrument written by J. C. Owens and published by . This book was released on 1968 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Microwave Modulated, Dual Optical Wavelength Geodetic Distance-measuring Instrument by : J. C. Owens
Download or read book Development of a Microwave Modulated, Dual Optical Wavelength Geodetic Distance-measuring Instrument written by J. C. Owens and published by . This book was released on 1968 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accuracy of optical distance measurements on horizontal paths is limited at present to several parts per million by uncertainty in knowledge of the average air density along the path. This report describes the development and testing of a prototype instrument capable of significant;y greater accuracy, probably as high as 0.1 ppm. The instrument makes simultaneous measurements of transit time using two superimposed beams of light which have different optical wavelengths but which are modulated at a common microwave frequency. From the difference in transit times for the two colors, plus the absolute transit for either one, the average refractive index along the path and hence the true geodetic path length can be determined. Tests over a 5.3 -km patch have given a standard error of 0.3 ppm in corrected distance, and it is believed that even better results can be obtained. The system is described in detail, including modifications that would significantly increase its accuracy and range.
Book Synopsis Final Report and Operations Manual for Microwave Modulated, Dual Optical Distance-measuring Instrument by : K. B. Earnshaw
Download or read book Final Report and Operations Manual for Microwave Modulated, Dual Optical Distance-measuring Instrument written by K. B. Earnshaw and published by . This book was released on 1975 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ESSA Technical Report ERL. by : United States. Environmental Science Services Administration
Download or read book ESSA Technical Report ERL. written by United States. Environmental Science Services Administration and published by . This book was released on 1968 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radio-physical Studies of Evaporation at Lake Hefner, 1966 and 1967 by :
Download or read book Radio-physical Studies of Evaporation at Lake Hefner, 1966 and 1967 written by and published by . This book was released on 1969 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis United States Department of Commerce Publications by : United States. Department of Commerce. Office of Publications
Download or read book United States Department of Commerce Publications written by United States. Department of Commerce. Office of Publications and published by . This book was released on 1969 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The United States Department of Commerce Publications, Catalog and Index Supplement by : United States. Dept. of Commerce
Download or read book The United States Department of Commerce Publications, Catalog and Index Supplement written by United States. Dept. of Commerce and published by . This book was released on 1967 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints written by and published by . This book was released on 1976 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Remote Sensing of Pollutants Computerized Reduction of Long-path Absorption Data by : Vernon Ellsworth Derr
Download or read book Remote Sensing of Pollutants Computerized Reduction of Long-path Absorption Data written by Vernon Ellsworth Derr and published by . This book was released on 1974 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Publications of the ESSA Research Laboratories by :
Download or read book Scientific and Technical Publications of the ESSA Research Laboratories written by and published by . This book was released on 1966 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FM/CW Radar Signals and Digital Processing by : Donald E. Barrick
Download or read book FM/CW Radar Signals and Digital Processing written by Donald E. Barrick and published by . This book was released on 1973 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
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 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Upper Mantle Project by : U.S. Upper Mantle Committee
Download or read book Upper Mantle Project written by U.S. Upper Mantle Committee and published by National Academies. This book was released on 1971 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the New Zealand Society for Earthquake Engineering by :
Download or read book Bulletin of the New Zealand Society for Earthquake Engineering written by and published by . This book was released on 1971 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantum Metrology and Fundamental Physical Constants by : A.A. Lucas
Download or read book Quantum Metrology and Fundamental Physical Constants written by A.A. Lucas and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: The object of this NATO Advanced Study Institute was to pre sent a tutorial 'introduction both to the basic physics of recent spectacular advances achieved in the field of metrology and to the determination of fundamental physical constants. When humans began to qualify their description of natural phenomena, metrology, the science of measurement, developed along side geometry and mathematics. However, flam antiquity to modern times, the role of metrology was mostly restricted to the need of commercial, social or scientific transactions of local or at most national scope. Beginning with the Renaissance, and particularly in western Europe during the last century, metrology rapidly developed an international character as a result of growing needs for more accurate measurements and common standards in the emerging indus trial society. Although the concerns of metrology are deeply rooted to fundamental sciences, it was, until recently, perceived by much of the scientific community as mostly custodial in character.
