Annual Report of the National Bureau of StandardsU.S. Government Printing Office, 1965 |
From inside the book
Results 1-5 of 53
Page 16
... response to questionnaires to the users of WWVB , more than 2,000 replies were received indicating the popularity of this station . Plans for a new station WWV , at Fort Collins , Colo . were developed during the year , and some of the ...
... response to questionnaires to the users of WWVB , more than 2,000 replies were received indicating the popularity of this station . Plans for a new station WWV , at Fort Collins , Colo . were developed during the year , and some of the ...
Page 19
... response of the average human eye to radiation . The radiation produced by the source would be measured by comparing its thermal effect with the thermal effect of a known electric current passed through a known electrical resistor ...
... response of the average human eye to radiation . The radiation produced by the source would be measured by comparing its thermal effect with the thermal effect of a known electric current passed through a known electrical resistor ...
Page 23
... response of standard microphones to plane sound waves . At frequencies above 10 kHz , it was found that the response of high - quality condenser microphones at grazing incidence is a function of the angular position of a microphone on ...
... response of standard microphones to plane sound waves . At frequencies above 10 kHz , it was found that the response of high - quality condenser microphones at grazing incidence is a function of the angular position of a microphone on ...
Page 30
... Response Recorder . - An instrument has been con- structed to record quickly the spectral sensitivity of photodetectors in the visible spectrum . The output of a grating monochromator is split so that one portion is fed to the detector ...
... Response Recorder . - An instrument has been con- structed to record quickly the spectral sensitivity of photodetectors in the visible spectrum . The output of a grating monochromator is split so that one portion is fed to the detector ...
Page 32
... response to demands by other laboratories for infrared reflectance data , the instrument is being utilized on a regular testing basis to provide these measurements when possible . Among the materials being examined are naturally ...
... response to demands by other laboratories for infrared reflectance data , the instrument is being utilized on a regular testing basis to provide these measurements when possible . Among the materials being examined are naturally ...
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Page 23 - THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consistent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce.
Page 37 - The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium- 133 atom.
Page 150 - Provides quantitative data on the physical and chemical properties of materials, compiled from the world's literature and critically evaluated.
Page 117 - Heat. Temperature Physics. Heat Measurements. Cryogenic Physics. Equation of State. Statistical Physics. Radiation Physics. X-ray. Radioactivity. Radiation Theory. High Energy Radiation. Radiological Equipment.
Page 1 - These include the development and maintenance of the national standards of measurement and the provision of means and methods for making measurements consistent with these standards: the determination of physical constants and properties of materials; the development of methods and instruments for testing materials, devices, and structures; advisory services to government agencies on scientific and technical problems...
Page 151 - Legibility of Alphanumeric Characters and Other Symbols; I. A Permuted Title Index and Bibliography.
Page 6 - reasonably good," it must be superior. It is not sufficient to have fairly good standards of measurement ; fairly good methods of testing materials, mechanisms or structures ; or reasonably good determination of important physical constants. The standards, the measurements, the test procedures must be the very best, the most accurate, the most reliable that can possibly be achieved at any given time, limited only by the state of the art at the time. It is thus more than a play on words to say that...
Page 13 - Subcommittee on Science, Research and Development, House Committee on Science and Astronautics, opened hearings on problems of the Government-Science relationship.
Page 152 - CERC publications are available from the Clearinghouse for Federal Scientific and Technical Information, 5285 Port Royal Road, Springfield, Virginia 22151.
Page 79 - Bureau is a principal focal point in the Federal Government for assuring maximum application of the physical and engineering sciences to the advancement of technology in industry and commerce.