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 3
... increase in sensitivity to errors in the measurement of length and time . The method offers many advantages from the experimental viewpoint and has been employed in one form or another by several investigators . In 1947 [ 14 ] , M ...
... increase in sensitivity to errors in the measurement of length and time . The method offers many advantages from the experimental viewpoint and has been employed in one form or another by several investigators . In 1947 [ 14 ] , M ...
Page 39
... increase in mixing ratio . The procedure was then reversed producing a decrease in mixing ratio . The emf from the wet - bulb thermocouple was fed to a pre- cision potentiometer . The unbalance of the poten- tiometer was amplified and ...
... increase in mixing ratio . The procedure was then reversed producing a decrease in mixing ratio . The emf from the wet - bulb thermocouple was fed to a pre- cision potentiometer . The unbalance of the poten- tiometer was amplified and ...
Page 67
... increased to about 60,000 pF . The construction details are shown in figure 6. One may use the core with or without ... increase it further by adding fixed capacitors , for example , at the outside rim of the ring . The applica- tion of ...
... increased to about 60,000 pF . The construction details are shown in figure 6. One may use the core with or without ... increase it further by adding fixed capacitors , for example , at the outside rim of the ring . The applica- tion of ...
Page 70
... increase Rm . How- ever , d cannot be reduced beyond the point at which the film stops behaving as a solid conductor . When this limit is reached , one may have to compromise for d higher ratios of a and consequent narrower frequency Sm ...
... increase Rm . How- ever , d cannot be reduced beyond the point at which the film stops behaving as a solid conductor . When this limit is reached , one may have to compromise for d higher ratios of a and consequent narrower frequency Sm ...
Page 92
... increase the purity of nearly any vaporizable mix- ture if sufficient effort is made . The method is invaluable for purifying relatively small quantities of material for research purposes . The selection of the proper still column for a ...
... increase the purity of nearly any vaporizable mix- ture if sufficient effort is made . The method is invaluable for purifying relatively small quantities of material for research purposes . The selection of the proper still column for a ...
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...