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
... constant quantity , the true value of which is unknown , cannot realistically be assigned a level of accuracy . One can and does derive an index , such as the standard deviation , of the precision of individual determinations made over ...
... constant quantity , the true value of which is unknown , cannot realistically be assigned a level of accuracy . One can and does derive an index , such as the standard deviation , of the precision of individual determinations made over ...
Page 35
... constant pressure of the pure vapor - free first component over the temperature range from Tw to T. The entity Cpv , may be interpreted as the " effective " specific ... constant pressure ; Ao the so - called " psychrometric constant " ( 35.
... constant pressure of the pure vapor - free first component over the temperature range from Tw to T. The entity Cpv , may be interpreted as the " effective " specific ... constant pressure ; Ao the so - called " psychrometric constant " ( 35.
Page 36
... constant " ( which appears in most formulas for the conventional psychrometer [ 3 ] ) ; M1 = the molecular weight of the vapor - free gas com- ponent ; and = M , the molecular weight of the vapor component . When e and eu are small ...
... constant " ( which appears in most formulas for the conventional psychrometer [ 3 ] ) ; M1 = the molecular weight of the vapor - free gas com- ponent ; and = M , the molecular weight of the vapor component . When e and eu are small ...
Page 44
... constant is a function of gas flow rate . At flow rates of 3.75 to 5.2 liters per minute the time constant is about 3/4 of a minute . Although the temperature of the liquid at the point where it discharges onto the wicking was not meas ...
... constant is a function of gas flow rate . At flow rates of 3.75 to 5.2 liters per minute the time constant is about 3/4 of a minute . Although the temperature of the liquid at the point where it discharges onto the wicking was not meas ...
Page 44
... CONSTANT , SECONDS 90 or DRY TO WET WET TO DRY 60 30 0 2 3 4 5 2 11 and agreed more closely with the estimates of the overall random error . It appears that the rejection process eliminated both low and high flow - dependent systematic ...
... CONSTANT , SECONDS 90 or DRY TO WET WET TO DRY 60 30 0 2 3 4 5 2 11 and agreed more closely with the estimates of the overall random error . It appears that the rejection process eliminated both low and high flow - dependent systematic ...
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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...