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 7
... thermal insulation of the vacuum chamber near the vacuum gage . The thermometer bulb was kept in thermal contact with the brass wall of the chamber by a pad of compacted aluminum foil . The thermometer was covered by the cork insulation ...
... thermal insulation of the vacuum chamber near the vacuum gage . The thermometer bulb was kept in thermal contact with the brass wall of the chamber by a pad of compacted aluminum foil . The thermometer was covered by the cork insulation ...
Page 18
... thermal expansion of 18.5 × 10-6 per degree Celsius . The results are given in table 5 . TABLE 5. Measured length intervals for brass tube Date July 2 , 1965 Measured lengths at 22 ° C Meter 0.999 733 06 Meter 0.299 962 06 734 23 962 30 ...
... thermal expansion of 18.5 × 10-6 per degree Celsius . The results are given in table 5 . TABLE 5. Measured length intervals for brass tube Date July 2 , 1965 Measured lengths at 22 ° C Meter 0.999 733 06 Meter 0.299 962 06 734 23 962 30 ...
Page 28
... thermal contact with the thermometer well . Stainless steel wire , 0.010 - in diam , was wound around the lower two - thirds of the well , the turns separated by about one diameter of the wire . This served to slow down the flow of ...
... thermal contact with the thermometer well . Stainless steel wire , 0.010 - in diam , was wound around the lower two - thirds of the well , the turns separated by about one diameter of the wire . This served to slow down the flow of ...
Page 33
... thermal to mass diffusivities [ 3 , 11-21 ] . Even these equations , which yield results in closer agreement with experimental data , do not completely depict all psychrometric behavior . For the water - air system , the ratio of thermal ...
... thermal to mass diffusivities [ 3 , 11-21 ] . Even these equations , which yield results in closer agreement with experimental data , do not completely depict all psychrometric behavior . For the water - air system , the ratio of thermal ...
Page 36
... thermal insulation from the ambient atmosphere for the test gas . The design of the liquid - feed tube and wicking combina tion is intended to provide a large evaporative area to the flowing gas while reducing as far as practical the ...
... thermal insulation from the ambient atmosphere for the test gas . The design of the liquid - feed tube and wicking combina tion is intended to provide a large evaporative area to the flowing gas while reducing as far as practical the ...
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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...