 | Meteorology - 1899 - 98 pages
...tempered-steel bourdon pressure tubes, forming a curl of about seveneighths of a complete circle about 1¿ inches in diameter. The major and minor axes of the...under pressure, and are set in tandem and edgewise tu the current of wind through the tube. Thus arranged, they constitute highly sensitive and relatively... | |
 | Meteorology - 1899 - 514 pages
...bulbs consist of a pair of tempered-steel bourdon pressure tubes, forming a curl of about seveneigliths of a complete circle about 1J inches in diameter....cross section of the tubes measure approximately 0.5 aud 0.1 of an inch, respectively. The tubes are filled with pure alcohol under pressure, and are set... | |
 | Rajeev Bansal - Science - 2004 - 720 pages
...to those of circular waveguides, but exhibit different cutoff frequencies for modes polarized along the major and minor axes of the elliptical cross section of the waveguide. This means that unlike circular waveguides, where the direction of polarization tends to... | |
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... strips are interposed between the thermometer bulbs and the metal of the inclosing tube, thereby still further insulating the thermometer bulbs. These bulbs consist of a pair of tempered-steel bourdon pressure tubes, forming a curl of about seveneighths... 