ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485557

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485558

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485544

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

摘要:

ABSTRACTThe results of drift measurements in the F2-region at Waltair for the period 1962–64 are presented in this paper. The main features of the diurnal and seasonal variation of drift in the F22-region at this low latitude station are given in details. Utilizing the drift data available at this station since 1954, an attempt has been made to study the sunspot cycle variations in drift parameters in the F2-region.

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485545

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

摘要:

ABSTRACTIn this paper a grid separation cavity for CW oscillator operating in L-band (1000–2000 Mc/s.) using pencil tube developed to be used as a Local Oscillator in S-band Pulsed Radar Transponder, developed by the author is presented. The power output and frequency have been measured as a function of the input power. At fixed input power, the variation of frequency as a function of the number of turns of tuning slug has also been measured. Lastly, the variation of frequency with temperature (from +20°to +90°C.) has been measured and a temperature compensation circuit designed to keep the shift in frequency less than 2 Mc/s. These measurements have been made on two cavities operating on 1375 and 1535 Mc/s.

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485546

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485547

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

摘要:

ABSTRACTTransient thermal characteristics of electrically heated long nickel filaments are found out with a view to understand the behaviour of quick heating cathodes. It is found that the time-temperature variations can be expressed by simple formulae. The behaviour of oxide coated nickel filaments is analysed in terms of the variation of temperature and emission with time. A set up for the measurement of these characteristics is discussed.

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485548

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485549

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485550

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor

ISSN:0377-2063    

DOI:10.1080/03772063.1967.11485552

出版商:Taylor&Francis    

年代:1967

数据来源: Taylor