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 5
... provide a sharp cut - off of the light beam in order to prevent spurious triggering of the timers by photo - tube noise in a slowly decaying light pattern . 1 I METER 30cm FIGURE 2. Free - fall object showing slits and guide sleeves ...
... provide a sharp cut - off of the light beam in order to prevent spurious triggering of the timers by photo - tube noise in a slowly decaying light pattern . 1 I METER 30cm FIGURE 2. Free - fall object showing slits and guide sleeves ...
Page 27
... provides a valuable check on the stability of the pressure scale as determined by piston gages or mercury manometers . One such fixed point is the vapor pressure of carbon dioxide at 0 ° C . Six careful determinations of the " CO2 point ...
... provides a valuable check on the stability of the pressure scale as determined by piston gages or mercury manometers . One such fixed point is the vapor pressure of carbon dioxide at 0 ° C . Six careful determinations of the " CO2 point ...
Page 28
... provide good thermal contact between the thermometer well and both phases of the CO2 . During preliminary studies , the temperature distribution was explored with thermo- couples to verify that the thermometer well was out of contact ...
... provide good thermal contact between the thermometer well and both phases of the CO2 . During preliminary studies , the temperature distribution was explored with thermo- couples to verify that the thermometer well was out of contact ...
Page 36
... provide a large evaporative area to the flowing gas while reducing as far as practical the pressure drop and total liquid heat capacity . The liquid- feed heat exchanger provides for the automatic pre- cooling of the liquid by the gas ...
... provide a large evaporative area to the flowing gas while reducing as far as practical the pressure drop and total liquid heat capacity . The liquid- feed heat exchanger provides for the automatic pre- cooling of the liquid by the gas ...
Page 38
... provide a large evaporative a the flowing gas while reducing as far as practic | pressure drop and total liquid heat capacity . The feed heat exchanger provides for the automati cooling of the liquid by the gas which has been b to the ...
... provide a large evaporative a the flowing gas while reducing as far as practic | pressure drop and total liquid heat capacity . The feed heat exchanger provides for the automati cooling of the liquid by the gas which has been b to the ...
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Common terms and phrases
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...