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 67
Page 67
... with power standards in a 50- system could be made directly ( without auxiliary attenuation or amplifica- tion ) . Calorimetric power measurements served as FIGURE 9g . Current core and auxiliary capacitor . Fit 283-576 OL - 68-6 67.
... with power standards in a 50- system could be made directly ( without auxiliary attenuation or amplifica- tion ) . Calorimetric power measurements served as FIGURE 9g . Current core and auxiliary capacitor . Fit 283-576 OL - 68-6 67.
Page 72
... attenuation factor a introduced by heater resistances of the order of 10 N or less is ENCLOSURE OF THERLIOBLEMENT APPROX . Im THICK WALL THERMOELEMENT GLASS ENVELOPE HT .5cm + D- COUPLE BOLOVAC RF GROUND STRUCTURE CURRENT PIN Z01 1.2 cm ...
... attenuation factor a introduced by heater resistances of the order of 10 N or less is ENCLOSURE OF THERLIOBLEMENT APPROX . Im THICK WALL THERMOELEMENT GLASS ENVELOPE HT .5cm + D- COUPLE BOLOVAC RF GROUND STRUCTURE CURRENT PIN Z01 1.2 cm ...
Page 78
... attenuated along the uniform line sections normally present in input connectors to high frequency voltmeters . 8. References [ 1 ] M. C. Selby and L. F. Behrent , A Bolometer bridge for stand- ardizing radio - frequency voltmeter , J ...
... attenuated along the uniform line sections normally present in input connectors to high frequency voltmeters . 8. References [ 1 ] M. C. Selby and L. F. Behrent , A Bolometer bridge for stand- ardizing radio - frequency voltmeter , J ...
Page 81
... attenuation calibration , lossy magnetic materials , magnetic measure- ment methods , permeability , rf magnetic materials , VHF bridge , VHF magnetic materials . Definitions of Symbols Y1 = Line 1 admittance terminated by a short . Y2 ...
... attenuation calibration , lossy magnetic materials , magnetic measure- ment methods , permeability , rf magnetic materials , VHF bridge , VHF magnetic materials . Definitions of Symbols Y1 = Line 1 admittance terminated by a short . Y2 ...
Page 84
... attenuation from one loop to another . Loop calibration was checked at 30 MHz using two 50 N terminations accurate to ± 0.5 percent . They were compared to each other using lines 1 and 2 , 1 and 3 , and 2 and 3 with the loops set at ...
... attenuation from one loop to another . Loop calibration was checked at 30 MHz using two 50 N terminations accurate to ± 0.5 percent . They were compared to each other using lines 1 and 2 , 1 and 3 , and 2 and 3 with the loops set at ...
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...