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 2
... relative gravity observations . Two later determinations , one by Heyl and Cook [ 4 ] at Washington , D.C. and the other by Clark [ 5 ] at Teddington , England , disagreed with the Potsdam result by significant amounts . Reexamination ...
... relative gravity observations . Two later determinations , one by Heyl and Cook [ 4 ] at Washington , D.C. and the other by Clark [ 5 ] at Teddington , England , disagreed with the Potsdam result by significant amounts . Reexamination ...
Page 4
... relative dis- placement between the silica tube and the chamber . could be restricted to a millimeter or so after the initial separation . After a fall of about 14 m the carriage was brought to a smooth stop by an air dash - pot . Only ...
... relative dis- placement between the silica tube and the chamber . could be restricted to a millimeter or so after the initial separation . After a fall of about 14 m the carriage was brought to a smooth stop by an air dash - pot . Only ...
Page 15
... relative motion of the object . The buoyant effect with fused silica is less than 600 parts in one million at atmospheric pres- sure and , since it varies in direct proportion to the pressure , can be considered negligible at pressures ...
... relative motion of the object . The buoyant effect with fused silica is less than 600 parts in one million at atmospheric pres- sure and , since it varies in direct proportion to the pressure , can be considered negligible at pressures ...
Page 17
... over the complete series of free - fall experiments . An interesting side effect in the length measurement is the small error due to the relative shortening of the invar scale and the silica tube when they are sup- 283-576 OL - 68-2 17.
... over the complete series of free - fall experiments . An interesting side effect in the length measurement is the small error due to the relative shortening of the invar scale and the silica tube when they are sup- 283-576 OL - 68-2 17.
Page 43
... Relative Estimated Estimated Estimated average total error overall overall system- random atic error error * Δ . A , ( A. + A , ) 10- / deg C 10 - deg C 10 deg C 0.14 0.24 .24 10 deg C 10 - 3 / deg C HO Air + 0.08 0.27 .19 0.10 H0 Air ...
... Relative Estimated Estimated Estimated average total error overall overall system- random atic error error * Δ . A , ( A. + A , ) 10- / deg C 10 - deg C 10 deg C 0.14 0.24 .24 10 deg C 10 - 3 / deg C HO Air + 0.08 0.27 .19 0.10 H0 Air ...
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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
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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...