Journal of Research of the National Bureau of Standards: Engineering and instrumentation. C, Volumes 72-75U.S. Government Printing Office, 1968 |
From inside the book
Results 1-5 of 100
Page 2
... reported the result of a determination at the National Physical Laboratory differing from the Potsdam result by approximately 13.7 mGal . 1.3 . Accuracy and Precision The requirements for accuracy in absolute gravity measurements are ...
... reported the result of a determination at the National Physical Laboratory differing from the Potsdam result by approximately 13.7 mGal . 1.3 . Accuracy and Precision The requirements for accuracy in absolute gravity measurements are ...
Page 10
... reported corrections have been applied to the measurements of the fused silica tubes in the gravity determinations . 3.2 . Time The standard of time for the determination was based on the National Bureau of Standards frequency standards ...
... reported corrections have been applied to the measurements of the fused silica tubes in the gravity determinations . 3.2 . Time The standard of time for the determination was based on the National Bureau of Standards frequency standards ...
Page 13
... reported in the table . The standard devia- tions were approximately 0.14 μm for both the 30 - cm and the 1 - meter intervals . It is evident that the varia- tions in length appearing in the table are partly random and partly due to ...
... reported in the table . The standard devia- tions were approximately 0.14 μm for both the 30 - cm and the 1 - meter intervals . It is evident that the varia- tions in length appearing in the table are partly random and partly due to ...
Page 17
... reported here were made , the carriage itself was modified . The connection between the latch and the carriage was made through two inde- pendent yokes which were attached to the carriage at points directly above the two vertical ...
... reported here were made , the carriage itself was modified . The connection between the latch and the carriage was made through two inde- pendent yokes which were attached to the carriage at points directly above the two vertical ...
Page 18
... reported . The length intervals for the brass tube were meas- ured at vacuum chamber temperatures ranging from 21.88 to 22.00 ° C and corrected to 22 ° C using a co- efficient of thermal expansion of 18.5 × 10-6 per degree Celsius . The ...
... reported . The length intervals for the brass tube were meas- ured at vacuum chamber temperatures ranging from 21.88 to 22.00 ° C and corrected to 22 ° C using a co- efficient of thermal expansion of 18.5 × 10-6 per degree Celsius . The ...
Other editions - View all
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...