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normal-incidence pyrheliometer |
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normal-incidence pyrheliometer [′nȯr·məl ¦in·səd·əns ¦pīr‚hē·lē′äm·əd·ər]
(engineering) An instrument that measures the energy in the solar beam; it usually measures the radiation that strikes a target at the end of a tube equipped with a shutter and baffles to collimate the beam. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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