Automatic solar compass
The most accurate method of finding the true north is through astronomical observations, for example, by observing the position of the sun. However, the procedure is complicated. The instantaneous position of the sun must be calculated from astronomical data for each instance of observation, and the...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
20.04.2010
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| Subjects | |
| Online Access | Get full text |
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| Abstract | The most accurate method of finding the true north is through astronomical observations, for example, by observing the position of the sun. However, the procedure is complicated. The instantaneous position of the sun must be calculated from astronomical data for each instance of observation, and the operator must wait for the predetermined time to come. Elaborate manual adjustments are required. The present invention discloses an automatic solar compass comprising a cylindrical omni-directional lens, a detection means, and a servomechanism. It is as easy to use as the magnetic compass, but much more accurate and reliable than the magnetic compass. |
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| AbstractList | The most accurate method of finding the true north is through astronomical observations, for example, by observing the position of the sun. However, the procedure is complicated. The instantaneous position of the sun must be calculated from astronomical data for each instance of observation, and the operator must wait for the predetermined time to come. Elaborate manual adjustments are required. The present invention discloses an automatic solar compass comprising a cylindrical omni-directional lens, a detection means, and a servomechanism. It is as easy to use as the magnetic compass, but much more accurate and reliable than the magnetic compass. |
| Author | CHEN CHENGJUN JULIAN |
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| RelatedCompanies | THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK |
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| Snippet | The most accurate method of finding the true north is through astronomical observations, for example, by observing the position of the sun. However, the... |
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| SubjectTerms | GYROSCOPIC INSTRUMENTS HOROLOGY MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS |
| Title | Automatic solar compass |
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