Journal of Research of the National Bureau of Standards: Engineering and instrumentation. C, Volumes 72-75U.S. Government Printing Office, 1968 |
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Page 1
... field of the earth . The gravitational field strength , multiplied by an accurately determined mass value , then becomes the working standard of force . From this point onward the normal process by which a measurement system is ...
... field of the earth . The gravitational field strength , multiplied by an accurately determined mass value , then becomes the working standard of force . From this point onward the normal process by which a measurement system is ...
Page 15
... field of the earth was fairly uniform along the line of fall of the silica tube , it is considered that the net effect of magnetic attraction on the tube was negligible . The electrostatic charge problem can usually be solved by making ...
... field of the earth was fairly uniform along the line of fall of the silica tube , it is considered that the net effect of magnetic attraction on the tube was negligible . The electrostatic charge problem can usually be solved by making ...
Page 63
... field distribution at the boundary planes of the air and metallic disk . It is not immediately apparent that the presence of the metallic disk will not perturb the radial electric field lines ; one might be concerned with the capacity ...
... field distribution at the boundary planes of the air and metallic disk . It is not immediately apparent that the presence of the metallic disk will not perturb the radial electric field lines ; one might be concerned with the capacity ...
Page 64
... field . This effect is negligible because of the circular and axial symmetry of the structure . For each electric and magnetic field line contributed by a given element of the disk , there is an equal and opposite field line contributed ...
... field . This effect is negligible because of the circular and axial symmetry of the structure . For each electric and magnetic field line contributed by a given element of the disk , there is an equal and opposite field line contributed ...
Page 76
... field measurements . The method holds promise for better accuracies and greater economy . Power may be computed by meas- uring voltages at three probes spaced one - eighth wavelength apart . Only one voltage need be accurately known ...
... field measurements . The method holds promise for better accuracies and greater economy . Power may be computed by meas- uring voltages at three probes spaced one - eighth wavelength apart . Only one voltage need be accurately known ...
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accuracy admittance alloys analysis application approximately atomic attenuation bolometer Bolovac bridge Bureau of Standards calculated calibration calorimeter capacitance capacitor Chem circuit coaxial coefficient connectors constant creep Cryogenic crystal curves density described detector determined dew point disk effect electrical electron electron probe microanalysis energy equation error evaluation experimental field film flow frequency function heat hydrometer IEEE impedance input Instr Instrumentation Vol Key words laser linear liquid load magnetic materials measurements ment meter method microwave Mössbauer effect Mössbauer spectroscopy National Bureau obtained optical oscilloscope output paper parameters percent Phys precision pressure Proc properties pulse radiation range ratio reference resistance resistors resonance sample shown in figure solution specimen spectra stress surface Tech techniques temperature thermal thermal conductivity thermocouple thermodynamic thiosulfate tion Trans tube tungsten uncertainty values vapor voltage waveguide wet-bulb wet-bulb temperature wire x-ray
Popular passages
Page 28 - In no case does such identification imply recommendation or endorsement by the National Bureau of Standards, nor does it imply that the material or equipment identified is necessarily the best available for the purpose.
Page 46 - THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consistent system of physical measurement; coordinates...
Page 25 - Passenger comfort is one of the most important factors to be considered in the design of these facilities and this also applies to the waiting rooms, rest rooms, lunch and dining rooms.
Page 21 - ... (1) nuclear data, (2) atomic and molecular data, (3) solid state data, (4) thermodynamic and transport data, (5) chemical kinetics, (6) colloid and surface properties, and (7) mechanical properties.
Page 82 - 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...
Page 23 - The procedure uses the x and y coordinates and the individual directions of the minutiae ( ridge endings and bifurcations). The identity of the...
Page 22 - This publication contains a descriptive listing, item by item, of most of the test and calibration work done at the National Bureau of Standards with the respective fees.
Page 16 - Maryland, and by the Division of Biology and Medicine of the United States Atomic...