Instruments and methods used in radiometry - II
Book details
- Title
- Instruments and methods used in radiometry - II
- Publication year listed
- 1913
- Format
- Public domain eBook
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- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
Instruments and methods used in radiometry - II
Year: 1913
The author presents a lengthy and exhaustive summary of the comparative advantages of four types of instruments : the radio-micrometer, the linear thermopile, the Nichols radiometer, and the bolometer with auxiliary galvanometer. He describes in detail the possible methods of improving the sensitiveness of the radio-micrometer, by reducing the weight of moving parts, changing the period, and placing it in a vacuum. The Rubens thermopile is found to be only about half as sensitive as a bolometer; but it can be improved by using thinner wires in a vacuum. Thermopiles are not so well adapted as bolometers for instantaneous registration of radiant energy, but their greater steadiness is%
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