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| 11. |
Radiation measuring instruments for the infra-red to ultra-violet waveband |
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Proceedings of the IEE - Part II: Power Engineering,
Volume 98,
Issue 66,
1951,
Page 771-780
A.C.Menzies,
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PDF (1826KB)
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摘要:
The introduction of electrical detectors into spectroscopy affects the design of spectrometers for use with them, and this is discussed. Infra-red techniques are considered in some detail, since many of them are also employed in the other regions. Typical electrical methods of emission and absorption spectroscopy in the visible and ultra-violet regions are described, and mention is made of a new type of photoconductive cell for this part of the spectrum. The scanning of Raman spectra is of particular interest, in view of the faintness of the signals. Brief reference is made to spectroscopy in the vacuum ultra-violet region.
DOI:10.1049/pi-2.1951.0199
出版商:IEE
年代:1951
数据来源: IET
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| 12. |
Instruments for use in the microwave band |
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Proceedings of the IEE - Part II: Power Engineering,
Volume 98,
Issue 66,
1951,
Page 781-789
A.F.Harvey,
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PDF (1544KB)
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摘要:
The paper describes the instruments used in the microwave band for the measurement of power, frequency and impedance; the majority of them use waveguide methods of transmission, but coaxial systems at the longer wavelengths and free-space semi-optical systems at the shorter wavelengths are also described. Emphasis is laid upon more recent instruments and on those for the millimetre-wavelength region. Methods of manufacture and their influence on behaviour and design are also discussed.
DOI:10.1049/pi-2.1951.0200
出版商:IEE
年代:1951
数据来源: IET
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