Circular of the Bureau of Standards, Masalah 24U.S. Government Printing Office, 1925 |
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Halaman 6
... resistance and the frequency of the current . The wave form of the current used is accurately deter- mined and analyzed , and a correction applied for the harmonics present . ( Oct. 15 , 1904. ) 28 pp . Price , 10 cents . SIO . The ...
... resistance and the frequency of the current . The wave form of the current used is accurately deter- mined and analyzed , and a correction applied for the harmonics present . ( Oct. 15 , 1904. ) 28 pp . Price , 10 cents . SIO . The ...
Halaman 8
... resistance in series with the voltage circuit of a wattmeter and controlled by the position of the photometer screen the wattmeter is made to indicate watts per candle directly . ( Mar. 15 , 1906. ) 16 pp . Price , 10 cents . $ 31 ...
... resistance in series with the voltage circuit of a wattmeter and controlled by the position of the photometer screen the wattmeter is made to indicate watts per candle directly . ( Mar. 15 , 1906. ) 16 pp . Price , 10 cents . $ 31 ...
Halaman 13
... resistance thermometers having very small time constant . Calibration on International Hydrogen Scale and ... resistance increases in a moist atmosphere and decreases in a dry atmosphere . This occurs even if the resistances are kept sub ...
... resistance thermometers having very small time constant . Calibration on International Hydrogen Scale and ... resistance increases in a moist atmosphere and decreases in a dry atmosphere . This occurs even if the resistances are kept sub ...
Halaman 14
... Resistance and Inductance of Solenoidal Coils ... ..Louis Cohen A theoretical investigation of the effect of frequency on the resistance and inductance of solenoids . The work of previous investigators is dis- cussed , and it is pointed ...
... Resistance and Inductance of Solenoidal Coils ... ..Louis Cohen A theoretical investigation of the effect of frequency on the resistance and inductance of solenoids . The work of previous investigators is dis- cussed , and it is pointed ...
Halaman 18
... Resistance .. .E . B. Rosa A new form of standard resistance is described which has been found more constant and reliable than those heretofore used at the Bureau as standards , and which is also very convenient in use . These standards ...
... Resistance .. .E . B. Rosa A new form of standard resistance is described which has been found more constant and reliable than those heretofore used at the Bureau as standards , and which is also very convenient in use . These standards ...
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Istilah dan frasa umum
15 cents absorption acid alloys alternating current ammonia annual antenna apparatus brick Bureau of Standards calorimeter carbon cells cement CHIG circuit circular clays coils color commercial committee concrete condensers conference construction contains copper curves described determined discussed effect electrical electrical insulating electrolytic electromotive force Elimination of Waste-Simplified experimental Federal Specifications Board formulas frequency galvanometer given Government Master Specification inductance coils instruments insulating investigation iron laboratory lamps lime magnetic manufacturers materials metal method molybdenite mutual inductance obtained oxide paint plates platinum Portland cement potentiometer Practice Recommendation Price properties pyrometer quicklime radiation radio resistance samples scale Screw Thread self-inductance shown simplified practice specification was officially specification was prepared spectral spectrum steel tables temperature tests thermal expansion thermometers tion tube tungsten United States Government UNIV vapor various voltage W. W. Coblentz Waste-Simplified Practice wave lengths weights and measures wire
Bagian yang populer
Halaman 127 - AA Klein) Constitution and microstructure of silica brick and changes involved through repeated burnings at high temperatures, US Bur.
Halaman 209 - Accordingly, a general conference was held under the auspices of the Division of Simplified Practice, National Bureau of Standards...
Halaman 204 - Spinners have appointed a joint committee ; the National Association of Cotton Manufacturers and the American Cotton Manufacturers...
Halaman 113 - Special Studies in Electrolysis Mitigation. IV. A Preliminary Report on Electrolysis Mitigation in Elyria, Ohio, with Recommendations for Mitigation Burton McCollum and KH Logan From data furnished by the city and the Cleveland Southwestern & Columbus Railway Co.
Halaman 42 - At all stations the logarithmic decrement per complete oscillation in the wave trains emitted by the transmitter shall not exceed two-tenths, except when sending distress signals or signals and messages relating thereto. USE OF STANDARD DISTRESS WAVE Fifth.
Halaman 174 - Prosecutions for offenses under this Act may be begun upon complaint of local sealers of weights and measures, or other officers of the several States and Territories appointed to enforce the laws of the said States...
Halaman 195 - March 31, 1931, for the use of the departments and independent establishments of the Government in the purchase of this...
Halaman 173 - That reasonable variations shall be permitted and tolerance shall be established by rules and regulations made by the Director of the Bureau of Standards and approved by the Secretary of Commerce.
Halaman 20 - Burrows 1 1 8. A Method for Constructing the Natural Scale of Pure Color . . PG Nutting 119. An Approximate Method for the Analysis of EMF. Waves . . PG Agnew 1 20. The Thermoelectric Properties of Tantalum and Tungsten . W . W . Coblentz 121.
Halaman 22 - Ives 126. Coupled Currents in which the Secondary has Distributed Inductance and Capacity Louis Cohen 127. Effect of Phase of Harmonics upon Acoustic Quality .... MG Lloyd and PG Agnew 128.