Hand Anemometer 1997
- Made:
- 1997 in United Kingdom
- maker:
- Unknown
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LicenseThis image is released under a CC BY-NC-SA 4.0
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LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
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License this image for commercial use at Science and Society Picture Library
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Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Science Museum Group
© The Board of Trustees of the Science Museum
Meteorological Office hand anemometer with three cups, in wooden case, unknown maker, 1997. Labelled with Met Office reference 23510.
Hand anemometers are portable devices used to measure wind speed at the level of the observer. Three cups are mounted on vertical spindle to which is also attached a permanent magnet. An aluminium cup mounted on a pivot, below and concentric with the spindle, carries a pointer. When the cup wheel rotates in the wind, the rotating magnet induces eddy currents in the aluminium cup which tries to turn in the same direction as the magnet against a restraining hair spring. The angular movement of the aluminium cup and the pointer gives a measure of the wind speed.
To use the instrument, the observer holds the anemometer at arms length with its axis vertical, with their arm at right angles to the wind direction to minimise interference from their body.
Details
- Category:
- Meteorology
- Object Number:
- 1999-202
- Materials:
- wood (unidentified), plastic (unidentified), metal (unknown), textile and felt
- Measurements:
-
instrument only: 205 mm x 110 mm, .425 kg
- type:
- anemometer
- credit:
- Meteorological Office