Field mill

:"This article is about an instrument, for other uses see Field mill (disambiguation)."

Field mill is a specialized instrument used for measuring the strength of electrical fields in the atmosphere near thunderstorm clouds. They are used in the launch criteria for the Space Shuttle to avoid lightning strikes.

The "mill" is a typical rotating shutter design in the instrument. It is usually deployed airborne and flown through anvil head clouds to make measurements.

External links

* [http://www.missioninstruments.com/pages/learning/about_fm2.html About Electric Field Mill Operation]
* [http://ghrc.msfc.nasa.gov:5721/dataset_documents/c4gmipfm_dataset.html CAMEX-4 MIPS Field Mill]
* [http://ams.allenpress.com/amsonline/?request=get-abstract&doi=10.1175%2F1520-0426(1994)011%3C0738:AOAFMD%3E2.0.CO%3B2 Application of Airborne Field Mill Data for Use in Launch Support]
* [http://www.spaceref.com/news/viewpr.html?pid=2194 Florida Airborne Field Mill Research May Improve Launch Weather Criteria]
* http://www.precisionstrobe.com/jc/fieldmill/fieldmill.html Build a homemade field mill
* [http://www.foudre-ineo.com/english/detection-foudre-uk.pdf INEO SUEZ]


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